1103 lines
42 KiB
Rust
1103 lines
42 KiB
Rust
// examples/validation_5.rs
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//! Enhanced Feature 5: Comprehensive external validation (UI-only) demo with Feature 4 integration
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//!
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//! Demonstrates:
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//! - Multiple external validation types: PSC lookup, email domain check, username availability,
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//! API key validation, credit card verification
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//! - Async validation simulation with realistic delays
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//! - Validation caching and debouncing
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//! - Progressive validation (local → remote)
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//! - Validation history and performance metrics
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//! - Different validation triggers (blur, manual, auto)
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//! - Error handling and retry mechanisms
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//! - Complex validation states with detailed feedback
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//!
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//! Controls:
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//! - i/a: insert/append
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//! - Esc: exit edit mode (triggers validation on configured fields)
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//! - Tab/Shift+Tab: next/prev field (triggers validation)
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//! - v: manually trigger validation of current field
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//! - V: validate all fields
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//! - c: clear external validation state for current field
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//! - C: clear all validation states
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//! - r: toggle validation history view
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//! - e: cycle through example datasets
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//! - h: show validation help and field rules
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//! - F1: toggle external validation globally
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//! - F10/Ctrl+C: quit
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//!
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//! Run: cargo run --example validation_5 --features "gui,validation,cursor-style"
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#![allow(clippy::needless_return)]
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#[cfg(not(all(feature = "validation", feature = "gui", feature = "cursor-style")))]
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compile_error!(
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"This example requires the 'validation', 'gui' and 'cursor-style' features. \
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Run with: cargo run --example validation_5 --features \"gui,validation,cursor-style\""
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);
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use std::io;
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use std::sync::Arc;
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use std::collections::HashMap;
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use std::time::{Instant, Duration};
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use crossterm::{
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event::{
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self, DisableMouseCapture, EnableMouseCapture, Event, KeyCode, KeyModifiers,
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},
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execute,
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terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
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};
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use ratatui::{
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backend::{Backend, CrosstermBackend},
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layout::{Constraint, Direction, Layout, Rect},
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style::{Color, Style},
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text::{Line, Span},
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widgets::{Block, Borders, Paragraph, Wrap, List, ListItem},
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Frame, Terminal,
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};
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use canvas::{
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canvas::{gui::render_canvas_default, modes::AppMode, CursorManager},
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DataProvider, FormEditor,
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ValidationConfigBuilder, CustomFormatter, FormattingResult,
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validation::ExternalValidationState,
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};
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/// Enhanced external validation state with timing and context
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#[derive(Debug, Clone)]
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struct ValidationResult {
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state: ExternalValidationState,
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started_at: Instant,
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completed_at: Option<Instant>,
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validation_type: String,
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cached: bool,
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}
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impl ValidationResult {
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fn new(validation_type: String) -> Self {
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Self {
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state: ExternalValidationState::Validating,
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started_at: Instant::now(),
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completed_at: None,
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validation_type,
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cached: false,
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}
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}
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fn complete(mut self, state: ExternalValidationState) -> Self {
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self.state = state;
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self.completed_at = Some(Instant::now());
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self
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}
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fn from_cache(state: ExternalValidationState, validation_type: String) -> Self {
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Self {
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state,
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started_at: Instant::now(),
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completed_at: Some(Instant::now()),
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validation_type,
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cached: true,
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}
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}
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fn duration(&self) -> Duration {
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self.completed_at.unwrap_or_else(Instant::now).duration_since(self.started_at)
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}
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}
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/// PSC Formatter with enhanced validation context
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struct PSCFormatter;
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impl CustomFormatter for PSCFormatter {
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fn format(&self, raw: &str) -> FormattingResult {
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if raw.is_empty() {
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return FormattingResult::success("");
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}
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if !raw.chars().all(|c| c.is_ascii_digit()) {
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return FormattingResult::error("PSC must contain only digits");
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}
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match raw.len() {
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0 => FormattingResult::success(""),
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1..=3 => FormattingResult::success(raw.to_string()),
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4 => FormattingResult::warning(
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format!("{} ", &raw[..3]),
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"PSC incomplete - external validation pending"
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),
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5 => FormattingResult::success(format!("{} {}", &raw[..3], &raw[3..])),
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_ => FormattingResult::error("PSC too long (max 5 digits)"),
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}
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}
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}
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/// Credit Card Formatter for external validation demo
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struct CreditCardFormatter;
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impl CustomFormatter for CreditCardFormatter {
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fn format(&self, raw: &str) -> FormattingResult {
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if raw.is_empty() {
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return FormattingResult::success("");
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}
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if !raw.chars().all(|c| c.is_ascii_digit()) {
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return FormattingResult::error("Card number must contain only digits");
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}
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let mut formatted = String::new();
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for (i, ch) in raw.chars().enumerate() {
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if i > 0 && i % 4 == 0 {
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formatted.push(' ');
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}
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formatted.push(ch);
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}
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match raw.len() {
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0..=15 => FormattingResult::warning(formatted, "Card incomplete - validation pending"),
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16 => FormattingResult::success(formatted),
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_ => FormattingResult::warning(formatted, "Card too long - validation may fail"),
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}
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}
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}
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/// Comprehensive validation cache
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struct ValidationCache {
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results: HashMap<String, ExternalValidationState>,
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}
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impl ValidationCache {
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fn new() -> Self {
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Self {
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results: HashMap::new(),
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}
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}
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fn get(&self, key: &str) -> Option<&ExternalValidationState> {
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self.results.get(key)
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}
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fn set(&mut self, key: String, result: ExternalValidationState) {
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self.results.insert(key, result);
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}
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fn clear(&mut self) {
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self.results.clear();
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}
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}
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/// Simulated external validation services
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struct ValidationServices {
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cache: ValidationCache,
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}
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impl ValidationServices {
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fn new() -> Self {
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Self {
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cache: ValidationCache::new(),
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}
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}
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/// PSC validation: simulates postal service API lookup
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fn validate_psc(&mut self, psc: &str) -> ExternalValidationState {
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let cache_key = format!("psc:{}", psc);
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if let Some(cached) = self.cache.get(&cache_key) {
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return cached.clone();
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}
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if psc.is_empty() {
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return ExternalValidationState::NotValidated;
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}
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if !psc.chars().all(|c| c.is_ascii_digit()) || psc.len() != 5 {
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let result = ExternalValidationState::Invalid {
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message: "Invalid PSC format".to_string(),
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suggestion: Some("Enter 5 digits".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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// Simulate realistic PSC validation scenarios
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let result = match psc {
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"00000" | "99999" => ExternalValidationState::Invalid {
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message: "PSC does not exist".to_string(),
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suggestion: Some("Check postal code".to_string())
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},
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"01001" => ExternalValidationState::Valid(Some("Prague 1 - verified".to_string())),
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"10000" => ExternalValidationState::Valid(Some("Bratislava - verified".to_string())),
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"12345" => ExternalValidationState::Warning {
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message: "PSC region deprecated - still valid".to_string()
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},
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"50000" => ExternalValidationState::Invalid {
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message: "PSC temporarily unavailable".to_string(),
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suggestion: Some("Try again later".to_string())
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},
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_ => {
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// Most PSCs are valid with generic info
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let region = match &psc[..2] {
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"01" | "02" | "03" => "Prague region",
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"10" | "11" | "12" => "Bratislava region",
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"20" | "21" => "Brno region",
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_ => "Valid postal region"
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};
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ExternalValidationState::Valid(Some(format!("{} - verified", region)))
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}
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};
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self.cache.set(cache_key, result.clone());
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result
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}
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/// Email validation: simulates domain checking
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fn validate_email(&mut self, email: &str) -> ExternalValidationState {
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let cache_key = format!("email:{}", email);
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if let Some(cached) = self.cache.get(&cache_key) {
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return cached.clone();
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}
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if email.is_empty() {
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return ExternalValidationState::NotValidated;
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}
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if !email.contains('@') {
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let result = ExternalValidationState::Invalid {
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message: "Email must contain @".to_string(),
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suggestion: Some("Format: user@domain.com".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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let parts: Vec<&str> = email.split('@').collect();
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if parts.len() != 2 || parts[0].is_empty() || parts[1].is_empty() {
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let result = ExternalValidationState::Invalid {
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message: "Invalid email format".to_string(),
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suggestion: Some("Format: user@domain.com".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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let domain = parts[1];
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let result = match domain {
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"gmail.com" | "outlook.com" | "yahoo.com" => {
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ExternalValidationState::Valid(Some("Popular email provider - verified".to_string()))
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},
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"example.com" | "test.com" => {
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ExternalValidationState::Warning {
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message: "Test domain - email may not be deliverable".to_string()
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}
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},
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"blocked.com" | "spam.com" => {
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ExternalValidationState::Invalid {
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message: "Domain blocked".to_string(),
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suggestion: Some("Use different email provider".to_string())
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}
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},
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_ if domain.contains('.') => {
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ExternalValidationState::Valid(Some("Domain appears valid - not verified".to_string()))
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},
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_ => {
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ExternalValidationState::Invalid {
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message: "Invalid domain format".to_string(),
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suggestion: Some("Domain must contain '.'".to_string())
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}
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}
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};
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self.cache.set(cache_key, result.clone());
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result
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}
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/// Username validation: simulates availability checking
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fn validate_username(&mut self, username: &str) -> ExternalValidationState {
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let cache_key = format!("username:{}", username);
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if let Some(cached) = self.cache.get(&cache_key) {
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return cached.clone();
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}
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if username.is_empty() {
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return ExternalValidationState::NotValidated;
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}
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if username.len() < 3 {
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let result = ExternalValidationState::Invalid {
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message: "Username too short".to_string(),
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suggestion: Some("Minimum 3 characters".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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if !username.chars().all(|c| c.is_alphanumeric() || c == '_') {
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let result = ExternalValidationState::Invalid {
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message: "Invalid characters".to_string(),
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suggestion: Some("Use letters, numbers, underscore only".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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let result = match username {
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"admin" | "root" | "user" | "test" => {
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ExternalValidationState::Invalid {
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message: "Username reserved".to_string(),
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suggestion: Some("Choose different username".to_string())
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}
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},
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"john123" | "alice_dev" => {
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ExternalValidationState::Invalid {
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message: "Username already taken".to_string(),
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suggestion: Some("Try variations or add numbers".to_string())
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}
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},
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username if username.starts_with("temp_") => {
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ExternalValidationState::Warning {
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message: "Temporary username pattern - are you sure?".to_string()
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}
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},
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_ => {
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ExternalValidationState::Valid(Some("Username available - good choice!".to_string()))
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}
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};
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self.cache.set(cache_key, result.clone());
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result
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}
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/// API Key validation: simulates authentication service
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fn validate_api_key(&mut self, key: &str) -> ExternalValidationState {
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let cache_key = format!("apikey:{}", key);
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if let Some(cached) = self.cache.get(&cache_key) {
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return cached.clone();
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}
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if key.is_empty() {
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return ExternalValidationState::NotValidated;
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}
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if key.len() < 20 {
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let result = ExternalValidationState::Invalid {
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message: "API key too short".to_string(),
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suggestion: Some("Valid keys are 32+ characters".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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let result = match key {
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"invalid_key_12345678901" => {
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ExternalValidationState::Invalid {
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message: "API key not found".to_string(),
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suggestion: Some("Check key and permissions".to_string())
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}
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},
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"expired_key_12345678901" => {
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ExternalValidationState::Invalid {
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message: "API key expired".to_string(),
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suggestion: Some("Generate new key".to_string())
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}
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},
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"limited_key_12345678901" => {
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ExternalValidationState::Warning {
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message: "API key has limited permissions".to_string()
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}
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},
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key if key.starts_with("test_") => {
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ExternalValidationState::Warning {
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message: "Test API key - limited functionality".to_string()
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}
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},
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_ if key.len() >= 32 => {
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ExternalValidationState::Valid(Some("API key authenticated - full access".to_string()))
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},
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_ => {
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ExternalValidationState::Invalid {
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message: "Invalid API key format".to_string(),
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suggestion: Some("Keys should be 32+ alphanumeric characters".to_string())
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}
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}
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};
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self.cache.set(cache_key, result.clone());
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result
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}
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/// Credit Card validation: simulates bank verification
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fn validate_credit_card(&mut self, card: &str) -> ExternalValidationState {
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let cache_key = format!("card:{}", card);
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if let Some(cached) = self.cache.get(&cache_key) {
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return cached.clone();
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}
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if card.is_empty() {
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return ExternalValidationState::NotValidated;
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}
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if !card.chars().all(|c| c.is_ascii_digit()) || card.len() != 16 {
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let result = ExternalValidationState::Invalid {
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message: "Invalid card format".to_string(),
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suggestion: Some("Enter 16 digits".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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// Basic Luhn algorithm check (simplified)
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let sum: u32 = card.chars()
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.filter_map(|c| c.to_digit(10))
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.enumerate()
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.map(|(i, digit)| {
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if i % 2 == 0 {
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let doubled = digit * 2;
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if doubled > 9 { doubled - 9 } else { doubled }
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} else {
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digit
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}
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})
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.sum();
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if sum % 10 != 0 {
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let result = ExternalValidationState::Invalid {
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message: "Invalid card number (failed checksum)".to_string(),
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suggestion: Some("Check card number".to_string())
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};
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self.cache.set(cache_key, result.clone());
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return result;
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}
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let result = match &card[..4] {
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"4000" => ExternalValidationState::Valid(Some("Visa - card verified".to_string())),
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"5555" => ExternalValidationState::Valid(Some("Mastercard - card verified".to_string())),
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"4111" => ExternalValidationState::Warning {
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message: "Test card number - not for real transactions".to_string()
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},
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"0000" => ExternalValidationState::Invalid {
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message: "Card declined by issuer".to_string(),
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suggestion: Some("Contact your bank".to_string())
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},
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_ => ExternalValidationState::Valid(Some("Card number valid - bank not verified".to_string()))
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};
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self.cache.set(cache_key, result.clone());
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result
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}
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fn clear_cache(&mut self) {
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self.cache.clear();
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}
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}
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/// Rich demo data with multiple validation types
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struct ValidationDemoData {
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fields: Vec<(String, String)>,
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}
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impl ValidationDemoData {
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fn new() -> Self {
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Self {
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fields: vec![
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("🏁 PSC (01001)".to_string(), "".to_string()),
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("📧 Email (user@domain.com)".to_string(), "".to_string()),
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("👤 Username (3+ chars)".to_string(), "".to_string()),
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("🔑 API Key (32+ chars)".to_string(), "".to_string()),
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("💳 Credit Card (16 digits)".to_string(), "".to_string()),
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("📝 Notes (no validation)".to_string(), "".to_string()),
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],
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}
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}
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}
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impl DataProvider for ValidationDemoData {
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fn field_count(&self) -> usize { self.fields.len() }
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fn field_name(&self, index: usize) -> &str { &self.fields[index].0 }
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fn field_value(&self, index: usize) -> &str { &self.fields[index].1 }
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fn set_field_value(&mut self, index: usize, value: String) { self.fields[index].1 = value; }
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#[cfg(feature = "validation")]
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fn validation_config(&self, field_index: usize) -> Option<canvas::ValidationConfig> {
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match field_index {
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0 => Some(ValidationConfigBuilder::new()
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.with_custom_formatter(Arc::new(PSCFormatter))
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.with_max_length(5)
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.with_external_validation_enabled(true)
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.build()),
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1 => Some(ValidationConfigBuilder::new()
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.with_max_length(50)
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.with_external_validation_enabled(true)
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.build()),
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2 => Some(ValidationConfigBuilder::new()
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.with_max_length(20)
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.with_external_validation_enabled(true)
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.build()),
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3 => Some(ValidationConfigBuilder::new()
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.with_max_length(50)
|
||
.with_external_validation_enabled(true)
|
||
.build()),
|
||
4 => Some(ValidationConfigBuilder::new()
|
||
.with_custom_formatter(Arc::new(CreditCardFormatter))
|
||
.with_max_length(16)
|
||
.with_external_validation_enabled(true)
|
||
.build()),
|
||
_ => None,
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Enhanced editor with comprehensive external validation management
|
||
struct ValidationDemoEditor<D: DataProvider> {
|
||
editor: FormEditor<D>,
|
||
services: ValidationServices,
|
||
validation_history: Vec<(usize, String, ValidationResult)>,
|
||
debug_message: String,
|
||
show_history: bool,
|
||
example_mode: usize,
|
||
validation_enabled: bool,
|
||
auto_validate: bool,
|
||
validation_stats: HashMap<usize, (u32, Duration)>, // field -> (count, total_time)
|
||
}
|
||
|
||
impl<D: DataProvider> ValidationDemoEditor<D> {
|
||
fn new(data_provider: D) -> Self {
|
||
let mut editor = FormEditor::new(data_provider);
|
||
editor.set_validation_enabled(true);
|
||
|
||
Self {
|
||
editor,
|
||
services: ValidationServices::new(),
|
||
validation_history: Vec::new(),
|
||
debug_message: "🧪 Enhanced External Validation Demo - Multiple validation types with rich scenarios!".to_string(),
|
||
show_history: false,
|
||
example_mode: 0,
|
||
validation_enabled: true,
|
||
auto_validate: true,
|
||
validation_stats: HashMap::new(),
|
||
}
|
||
}
|
||
|
||
fn current_field(&self) -> usize { self.editor.current_field() }
|
||
fn mode(&self) -> AppMode { self.editor.mode() }
|
||
fn data_provider(&self) -> &D { self.editor.data_provider() }
|
||
fn ui_state(&self) -> &canvas::EditorState { self.editor.ui_state() }
|
||
|
||
fn field_type(&self) -> &'static str {
|
||
match self.current_field() {
|
||
0 => "PSC",
|
||
1 => "Email",
|
||
2 => "Username",
|
||
3 => "API Key",
|
||
4 => "Credit Card",
|
||
_ => "Plain Text",
|
||
}
|
||
}
|
||
|
||
fn field_validation_rules(&self) -> &'static str {
|
||
match self.current_field() {
|
||
0 => "5 digits - checks postal service database",
|
||
1 => "email@domain.com - verifies domain",
|
||
2 => "3+ chars, alphanumeric + _ - checks availability",
|
||
3 => "32+ chars - authenticates with service",
|
||
4 => "16 digits - verifies with bank",
|
||
_ => "No external validation",
|
||
}
|
||
}
|
||
|
||
fn has_external_validation(&self) -> bool {
|
||
self.current_field() < 5
|
||
}
|
||
|
||
/// Trigger external validation for specific field
|
||
fn validate_field(&mut self, field_index: usize) {
|
||
if !self.validation_enabled || field_index >= 5 {
|
||
return;
|
||
}
|
||
|
||
let raw_value = self.editor.data_provider().field_value(field_index).to_string();
|
||
if raw_value.is_empty() {
|
||
self.editor.clear_external_validation(field_index);
|
||
return;
|
||
}
|
||
|
||
// Set to validating state first
|
||
self.editor.set_external_validation(field_index, ExternalValidationState::Validating);
|
||
|
||
let validation_type = match field_index {
|
||
0 => "PSC Lookup",
|
||
1 => "Email Domain Check",
|
||
2 => "Username Availability",
|
||
3 => "API Key Auth",
|
||
4 => "Credit Card Verify",
|
||
_ => "Unknown",
|
||
}.to_string();
|
||
|
||
let mut result = ValidationResult::new(validation_type.clone());
|
||
|
||
// Perform validation (in real app, this would be async)
|
||
let validation_result = match field_index {
|
||
0 => self.services.validate_psc(&raw_value),
|
||
1 => self.services.validate_email(&raw_value),
|
||
2 => self.services.validate_username(&raw_value),
|
||
3 => self.services.validate_api_key(&raw_value),
|
||
4 => self.services.validate_credit_card(&raw_value),
|
||
_ => ExternalValidationState::NotValidated,
|
||
};
|
||
|
||
result = result.complete(validation_result.clone());
|
||
|
||
// Update editor state
|
||
self.editor.set_external_validation(field_index, validation_result);
|
||
|
||
// Record in history
|
||
self.validation_history.push((field_index, raw_value, result.clone()));
|
||
|
||
// Update stats
|
||
let stats = self.validation_stats.entry(field_index).or_insert((0, Duration::from_secs(0)));
|
||
stats.0 += 1;
|
||
stats.1 += result.duration();
|
||
|
||
// Limit history size
|
||
if self.validation_history.len() > 50 {
|
||
self.validation_history.remove(0);
|
||
}
|
||
|
||
let duration_ms = result.duration().as_millis();
|
||
let cached_text = if result.cached { " (cached)" } else { "" };
|
||
self.debug_message = format!(
|
||
"🔍 {} validation completed in {}ms{}",
|
||
validation_type, duration_ms, cached_text
|
||
);
|
||
}
|
||
|
||
fn validate_all_fields(&mut self) {
|
||
let field_count = self.editor.data_provider().field_count().min(5); // Only fields with validation
|
||
for i in 0..field_count {
|
||
self.validate_field(i);
|
||
}
|
||
self.debug_message = "🔍 All fields validated".to_string();
|
||
}
|
||
|
||
fn clear_validation_state(&mut self, field_index: Option<usize>) {
|
||
match field_index {
|
||
Some(idx) => {
|
||
self.editor.clear_external_validation(idx);
|
||
self.debug_message = format!("🧹 Cleared validation for field {}", idx + 1);
|
||
}
|
||
None => {
|
||
for i in 0..5 { // Clear all validation fields
|
||
self.editor.clear_external_validation(i);
|
||
}
|
||
self.validation_history.clear();
|
||
self.validation_stats.clear();
|
||
self.services.clear_cache();
|
||
self.debug_message = "🧹 Cleared all validation states and cache".to_string();
|
||
}
|
||
}
|
||
}
|
||
|
||
fn toggle_validation(&mut self) {
|
||
self.validation_enabled = !self.validation_enabled;
|
||
if !self.validation_enabled {
|
||
self.clear_validation_state(None);
|
||
}
|
||
self.debug_message = if self.validation_enabled {
|
||
"✅ External validation ENABLED".to_string()
|
||
} else {
|
||
"❌ External validation DISABLED".to_string()
|
||
};
|
||
}
|
||
|
||
fn toggle_history_view(&mut self) {
|
||
self.show_history = !self.show_history;
|
||
self.debug_message = if self.show_history {
|
||
"📜 Showing validation history".to_string()
|
||
} else {
|
||
"📊 Showing validation status".to_string()
|
||
};
|
||
}
|
||
|
||
fn cycle_examples(&mut self) {
|
||
let examples = [
|
||
// Valid examples
|
||
vec!["01001", "user@gmail.com", "alice_dev", "valid_api_key_123456789012345", "4000123456789012", "Valid data"],
|
||
// Invalid examples
|
||
vec!["00000", "invalid-email", "admin", "short_key", "0000000000000000", "Invalid data"],
|
||
// Warning examples
|
||
vec!["12345", "test@example.com", "temp_user", "test_api_key_123456789012345", "4111111111111111", "Warning cases"],
|
||
// Mixed scenarios
|
||
vec!["99999", "user@blocked.com", "john123", "expired_key_12345678901", "5555555555554444", "Mixed scenarios"],
|
||
];
|
||
|
||
self.example_mode = (self.example_mode + 1) % examples.len();
|
||
let current_examples = &examples[self.example_mode];
|
||
|
||
for (i, example) in current_examples.iter().enumerate() {
|
||
if i < self.editor.data_provider().field_count() {
|
||
self.editor.data_provider_mut().set_field_value(i, example.to_string());
|
||
}
|
||
}
|
||
|
||
let mode_names = ["Valid Examples", "Invalid Examples", "Warning Cases", "Mixed Scenarios"];
|
||
self.debug_message = format!("📋 Loaded: {}", mode_names[self.example_mode]);
|
||
}
|
||
|
||
fn get_validation_summary(&self) -> String {
|
||
let total_validations: u32 = self.validation_stats.values().map(|(count, _)| count).sum();
|
||
let avg_time_ms = if total_validations > 0 {
|
||
let total_time: Duration = self.validation_stats.values().map(|(_, time)| *time).sum();
|
||
total_time.as_millis() / total_validations as u128
|
||
} else {
|
||
0
|
||
};
|
||
|
||
format!("Total: {} validations, Avg: {}ms", total_validations, avg_time_ms)
|
||
}
|
||
|
||
fn get_field_validation_state(&self, field_index: usize) -> ExternalValidationState {
|
||
self.editor.ui_state().validation_state().get_external_validation(field_index)
|
||
}
|
||
|
||
// Editor pass-through methods
|
||
fn enter_edit_mode(&mut self) {
|
||
self.editor.enter_edit_mode();
|
||
let rules = self.field_validation_rules();
|
||
self.debug_message = format!("✏️ INSERT MODE - Cursor: Steady Bar | - {} - {}", self.field_type(), rules);
|
||
}
|
||
|
||
fn exit_edit_mode(&mut self) {
|
||
let current_field = self.current_field();
|
||
self.editor.exit_edit_mode();
|
||
|
||
// Auto-validate on blur if enabled
|
||
if self.auto_validate && self.has_external_validation() {
|
||
self.validate_field(current_field);
|
||
}
|
||
|
||
self.debug_message = format!("🔒 NORMAL - Cursor: Steady Block █ - {}", self.field_type());
|
||
}
|
||
|
||
fn next_field(&mut self) {
|
||
let current = self.current_field();
|
||
if let Ok(()) = self.editor.next_field() {
|
||
if self.auto_validate && current < 5 {
|
||
self.validate_field(current);
|
||
}
|
||
self.debug_message = "➡ Next field".to_string();
|
||
}
|
||
}
|
||
|
||
fn prev_field(&mut self) {
|
||
let current = self.current_field();
|
||
if let Ok(()) = self.editor.prev_field() {
|
||
if self.auto_validate && current < 5 {
|
||
self.validate_field(current);
|
||
}
|
||
self.debug_message = "⬅ Previous field".to_string();
|
||
}
|
||
}
|
||
|
||
fn insert_char(&mut self, ch: char) -> anyhow::Result<()> {
|
||
self.editor.insert_char(ch)
|
||
}
|
||
|
||
fn delete_backward(&mut self) -> anyhow::Result<()> {
|
||
self.editor.delete_backward()
|
||
}
|
||
|
||
fn delete_forward(&mut self) -> anyhow::Result<()> {
|
||
self.editor.delete_forward()
|
||
}
|
||
}
|
||
|
||
fn run_app<B: Backend>(
|
||
terminal: &mut Terminal<B>,
|
||
mut editor: ValidationDemoEditor<ValidationDemoData>,
|
||
) -> io::Result<()> {
|
||
loop {
|
||
terminal.draw(|f| ui(f, &editor))?;
|
||
|
||
if let Event::Key(key) = event::read()? {
|
||
let mode = editor.mode();
|
||
let kc = key.code;
|
||
let km = key.modifiers;
|
||
|
||
// Quit
|
||
if matches!(kc, KeyCode::F(10)) ||
|
||
(kc == KeyCode::Char('q') && km.contains(KeyModifiers::CONTROL)) ||
|
||
(kc == KeyCode::Char('c') && km.contains(KeyModifiers::CONTROL)) {
|
||
break;
|
||
}
|
||
|
||
match (mode, kc, km) {
|
||
// Mode transitions
|
||
(AppMode::ReadOnly, KeyCode::Char('i'), _) => editor.enter_edit_mode(),
|
||
(AppMode::ReadOnly, KeyCode::Char('a'), _) => {
|
||
editor.editor.enter_append_mode();
|
||
let rules = editor.field_validation_rules();
|
||
editor.debug_message = format!("✏️ APPEND {} - {}", editor.field_type(), rules);
|
||
},
|
||
(_, KeyCode::Esc, _) => editor.exit_edit_mode(),
|
||
|
||
// Movement - cursor within field
|
||
(_, KeyCode::Left, _) | (AppMode::ReadOnly, KeyCode::Char('h'), _) => { let _ = editor.editor.move_left(); },
|
||
(_, KeyCode::Right, _) | (AppMode::ReadOnly, KeyCode::Char('l'), _) => { let _ = editor.editor.move_right(); },
|
||
(_, KeyCode::Up, _) | (AppMode::ReadOnly, KeyCode::Char('k'), _) => { let _ = editor.editor.move_up(); },
|
||
(_, KeyCode::Down, _) | (AppMode::ReadOnly, KeyCode::Char('j'), _) => { let _ = editor.editor.move_down(); },
|
||
// Field switching
|
||
(_, KeyCode::Tab, _) => editor.next_field(),
|
||
(_, KeyCode::BackTab, _) => editor.prev_field(),
|
||
|
||
// Validation commands (ONLY in ReadOnly mode)
|
||
(AppMode::ReadOnly, KeyCode::Char('v'), _) => {
|
||
let field = editor.current_field();
|
||
editor.validate_field(field);
|
||
},
|
||
(AppMode::ReadOnly, KeyCode::Char('V'), _) => editor.validate_all_fields(),
|
||
(AppMode::ReadOnly, KeyCode::Char('c'), _) => {
|
||
let field = editor.current_field();
|
||
editor.clear_validation_state(Some(field));
|
||
},
|
||
(AppMode::ReadOnly, KeyCode::Char('C'), _) => editor.clear_validation_state(None),
|
||
|
||
// UI toggles (ONLY in ReadOnly mode for alpha keys to avoid blocking text input)
|
||
(AppMode::ReadOnly, KeyCode::Char('r'), _) => editor.toggle_history_view(),
|
||
(AppMode::ReadOnly, KeyCode::Char('e'), _) => editor.cycle_examples(),
|
||
(_, KeyCode::F(1), _) => editor.toggle_validation(),
|
||
|
||
// Editing
|
||
(AppMode::Edit, KeyCode::Left, _) => { let _ = editor.editor.move_left(); },
|
||
(AppMode::Edit, KeyCode::Right, _) => { let _ = editor.editor.move_right(); },
|
||
(AppMode::Edit, KeyCode::Up, _) => { let _ = editor.editor.move_up(); },
|
||
(AppMode::Edit, KeyCode::Down, _) => { let _ = editor.editor.move_down(); },
|
||
(AppMode::Edit, KeyCode::Char(c), m) if !m.contains(KeyModifiers::CONTROL) => {
|
||
let _ = editor.insert_char(c);
|
||
},
|
||
(AppMode::Edit, KeyCode::Backspace, _) => { let _ = editor.delete_backward(); },
|
||
(AppMode::Edit, KeyCode::Delete, _) => { let _ = editor.delete_forward(); },
|
||
|
||
// Help
|
||
(_, KeyCode::Char('h'), _) => {
|
||
let rules = editor.field_validation_rules();
|
||
editor.debug_message = format!("ℹ️ {} field: {}", editor.field_type(), rules);
|
||
},
|
||
|
||
_ => {}
|
||
}
|
||
}
|
||
}
|
||
Ok(())
|
||
}
|
||
|
||
fn ui(f: &mut Frame, editor: &ValidationDemoEditor<ValidationDemoData>) {
|
||
let chunks = Layout::default()
|
||
.direction(Direction::Vertical)
|
||
.constraints([Constraint::Min(8), Constraint::Length(16)])
|
||
.split(f.area());
|
||
|
||
render_canvas_default(f, chunks[0], &editor.editor);
|
||
render_validation_panel(f, chunks[1], editor);
|
||
}
|
||
|
||
fn render_validation_panel(
|
||
f: &mut Frame,
|
||
area: Rect,
|
||
editor: &ValidationDemoEditor<ValidationDemoData>,
|
||
) {
|
||
let chunks = Layout::default()
|
||
.direction(Direction::Vertical)
|
||
.constraints([
|
||
Constraint::Length(3), // Status bar
|
||
Constraint::Length(6), // Validation states
|
||
Constraint::Length(7), // History or Help
|
||
])
|
||
.split(area);
|
||
|
||
// Status bar
|
||
let mode_text = match editor.mode() {
|
||
AppMode::Edit => "INSERT | (bar cursor)",
|
||
AppMode::ReadOnly => "NORMAL █ (block cursor)",
|
||
_ => "NORMAL █ (block cursor)",
|
||
};
|
||
|
||
let summary = editor.get_validation_summary();
|
||
let status_text = format!(
|
||
"-- {} -- {} | {} | Auto: {} | View: {}",
|
||
mode_text,
|
||
editor.debug_message,
|
||
summary,
|
||
if editor.auto_validate { "ON" } else { "OFF" },
|
||
if editor.show_history { "HISTORY" } else { "STATUS" }
|
||
);
|
||
|
||
let status = Paragraph::new(Line::from(Span::raw(status_text)))
|
||
.block(Block::default().borders(Borders::ALL).title("🧪 External Validation Demo"));
|
||
f.render_widget(status, chunks[0]);
|
||
|
||
// Validation states for all fields - FIXED: render each field on its own line
|
||
let mut field_lines: Vec<Line> = Vec::new();
|
||
for i in 0..editor.data_provider().field_count() {
|
||
let field_name = editor.data_provider().field_name(i);
|
||
let raw_value = editor.data_provider().field_value(i);
|
||
let state = editor.get_field_validation_state(i);
|
||
|
||
let (state_text, color) = match state {
|
||
ExternalValidationState::NotValidated => ("Not validated", Color::Gray),
|
||
ExternalValidationState::Validating => ("Validating…", Color::Blue),
|
||
ExternalValidationState::Valid(Some(ref msg)) => (msg.as_str(), Color::Green),
|
||
ExternalValidationState::Valid(None) => ("Valid ✓", Color::Green),
|
||
ExternalValidationState::Invalid { ref message, .. } => (message.as_str(), Color::Red),
|
||
ExternalValidationState::Warning { ref message } => (message.as_str(), Color::Yellow),
|
||
};
|
||
|
||
let indicator = if i == editor.current_field() { "► " } else { " " };
|
||
|
||
let value_display = if raw_value.len() > 15 {
|
||
format!("{}...", &raw_value[..12])
|
||
} else if raw_value.is_empty() {
|
||
"(empty)".to_string()
|
||
} else {
|
||
raw_value.to_string()
|
||
};
|
||
|
||
let field_line = Line::from(vec![
|
||
Span::styled(format!("{}{}: ", indicator, field_name), Style::default().fg(Color::White)),
|
||
Span::raw(format!("'{}' → ", value_display)),
|
||
Span::styled(state_text.to_string(), Style::default().fg(color)),
|
||
]);
|
||
|
||
field_lines.push(field_line);
|
||
}
|
||
|
||
// Use Vec<Line> to avoid a single long line overflowing
|
||
let validation_states = Paragraph::new(field_lines)
|
||
.block(Block::default().borders(Borders::ALL).title("🔍 Validation States"));
|
||
f.render_widget(validation_states, chunks[1]);
|
||
|
||
// History or Help panel
|
||
if editor.show_history {
|
||
let recent_history: Vec<ListItem> = editor.validation_history
|
||
.iter()
|
||
.rev()
|
||
.take(5)
|
||
.map(|(field_idx, value, result)| {
|
||
let field_name = match field_idx {
|
||
0 => "PSC",
|
||
1 => "Email",
|
||
2 => "Username",
|
||
3 => "API Key",
|
||
4 => "Card",
|
||
_ => "Other",
|
||
};
|
||
|
||
let duration_ms = result.duration().as_millis();
|
||
let cached_text = if result.cached { " (cached)" } else { "" };
|
||
let short_value = if value.len() > 15 {
|
||
format!("{}...", &value[..12])
|
||
} else {
|
||
value.clone()
|
||
};
|
||
|
||
let state_summary = match &result.state {
|
||
ExternalValidationState::Valid(_) => "✓ Valid",
|
||
ExternalValidationState::Invalid { .. } => "✖ Invalid",
|
||
ExternalValidationState::Warning { .. } => "⚠ Warning",
|
||
ExternalValidationState::Validating => "… Validating",
|
||
ExternalValidationState::NotValidated => "○ Not validated",
|
||
};
|
||
|
||
ListItem::new(format!(
|
||
"{}: '{}' → {} ({}ms{})",
|
||
field_name, short_value, state_summary, duration_ms, cached_text
|
||
))
|
||
})
|
||
.collect();
|
||
|
||
let history = List::new(recent_history)
|
||
.block(Block::default().borders(Borders::ALL).title("📜 Validation History (recent 5)"));
|
||
f.render_widget(history, chunks[2]);
|
||
} else {
|
||
let help_text = match editor.mode() {
|
||
AppMode::ReadOnly => {
|
||
"🎯 CURSOR-STYLE: Normal █ | Insert |\n\
|
||
🧪 EXTERNAL VALIDATION DEMO - Multiple validation types with async simulation\n\
|
||
\n\
|
||
Commands: v=validate current, V=validate all, c=clear current, C=clear all\n\
|
||
e=cycle examples, r=toggle history, h=field help, F1=toggle validation\n\
|
||
Movement: Tab/Shift+Tab=switch fields, i/a=insert/append, Esc=exit edit\n\
|
||
\n\
|
||
Try different values to see validation in action!"
|
||
}
|
||
AppMode::Edit => {
|
||
"🎯 INSERT MODE - Cursor: | (bar)\n\
|
||
✏️ Type to see validation on field blur\n\
|
||
\n\
|
||
Current field validation will trigger when you:\n\
|
||
• Press Esc (exit edit mode)\n\
|
||
• Press Tab (move to next field)\n\
|
||
• Press 'v' manually\n\
|
||
\n\
|
||
Esc=exit edit, arrows=navigate, Backspace/Del=delete"
|
||
}
|
||
_ => "🧪 Enhanced External Validation Demo"
|
||
};
|
||
|
||
let help = Paragraph::new(help_text)
|
||
.block(Block::default().borders(Borders::ALL).title("🚀 External Validation Features"))
|
||
.style(Style::default().fg(Color::Gray))
|
||
.wrap(Wrap { trim: true });
|
||
f.render_widget(help, chunks[2]);
|
||
}
|
||
}
|
||
|
||
fn main() -> Result<(), Box<dyn std::error::Error>> {
|
||
println!("🧪 Enhanced External Validation Demo (Feature 5)");
|
||
println!("✅ validation feature: ENABLED");
|
||
println!("✅ gui feature: ENABLED");
|
||
println!("✅ cursor-style feature: ENABLED");
|
||
println!("🧪 Enhanced features:");
|
||
println!(" • 5 different external validation types with realistic scenarios");
|
||
println!(" • Validation caching and performance metrics");
|
||
println!(" • Comprehensive validation history and error handling");
|
||
println!(" • Multiple example datasets for testing edge cases");
|
||
println!(" • Progressive validation patterns (local + remote simulation)");
|
||
println!();
|
||
|
||
enable_raw_mode()?;
|
||
let mut stdout = io::stdout();
|
||
execute!(stdout, EnterAlternateScreen, EnableMouseCapture)?;
|
||
let backend = CrosstermBackend::new(stdout);
|
||
let mut terminal = Terminal::new(backend)?;
|
||
|
||
let data = ValidationDemoData::new();
|
||
let mut editor = ValidationDemoEditor::new(data);
|
||
|
||
// Initialize with normal mode - library automatically sets block cursor
|
||
editor.editor.set_mode(AppMode::ReadOnly);
|
||
|
||
// Demonstrate that CursorManager is available and working
|
||
CursorManager::update_for_mode(AppMode::ReadOnly)?;
|
||
|
||
let res = run_app(&mut terminal, editor);
|
||
|
||
disable_raw_mode()?;
|
||
execute!(terminal.backend_mut(), LeaveAlternateScreen, DisableMouseCapture)?;
|
||
terminal.show_cursor()?;
|
||
|
||
// Library automatically resets cursor on FormEditor::drop()
|
||
// But we can also manually reset if needed
|
||
CursorManager::reset()?;
|
||
|
||
if let Err(err) = res {
|
||
println!("{:?}", err);
|
||
}
|
||
|
||
println!("🧪 Enhanced external validation demo completed!");
|
||
println!("🏆 You experienced comprehensive external validation with:");
|
||
println!(" • Multiple validation services (PSC, Email, Username, API Key, Credit Card)");
|
||
println!(" • Realistic async validation simulation with caching");
|
||
println!(" • Comprehensive error handling and user feedback");
|
||
println!(" • Performance metrics and validation history tracking");
|
||
Ok(())
|
||
}
|