From d048630941aa170981cccbdb7c5186e64c8d2e29 Mon Sep 17 00:00:00 2001
From: Priec <filippriec@gmail.com>
Date: Mon, 2 Feb 2026 16:31:51 +0100
Subject: [PATCH] more poggers

---
 src/logic.rs | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/src/logic.rs b/src/logic.rs
index ef95a6d..61442f9 100644
--- a/src/logic.rs
+++ b/src/logic.rs
@@ -132,4 +132,30 @@ impl Kniznica {
     fn daj_knihy_podla_stavu(&self, stav_knihy: Stav) -> Vec<&Kniha> {
        self.knihy.iter().filter(|x| x.stav_knihy == stav_knihy).collect()
     }
+
+    fn vypis_vydavatelstva_a_pocet_knih(&self) {
+        // hashmap obsahuje <K, V> kde K moze byt string a V pocet
+        let mut mapa = std::collections::HashMap::new();
+        for k in &self.knihy {
+            let meno = &k.vydavatelstvo;
+
+            let novy_pocet = match mapa.get(meno) {
+                Some(pocet) => pocet + 1,
+                None => 1,
+            };
+
+            mapa.insert(meno, novy_pocet);
+
+        }
+        for (vyd, pocet) in mapa {
+            println!("{}: {}", vyd, pocet);
+        }
+    }
+
+    fn vypis_knihy_daneho_zanru(&self, zaner_st: &str) {
+        let k = &self.knihy.iter().filter(|x| x.zaner == zaner_st).collect();
+        for x in k {
+
+        }
+    }
 }