3rd push

main.py

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+import sqlite3
+import matplotlib.pyplot as plt
+from datetime import datetime
+
+# Inicjalizacja bazy danych
+def init_db():
+    conn = sqlite3.connect("finance.db")
+    cursor = conn.cursor()
+    cursor.execute("""
+        CREATE TABLE IF NOT EXISTS transactions (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            type TEXT NOT NULL, -- 'income' lub 'expense'
+            amount REAL NOT NULL,
+            category TEXT,
+            date TEXT NOT NULL
+        )
+    """)
+    conn.commit()
+    conn.close()
+
+# Dodawanie transakcji
+def add_transaction(transaction_type, amount, category):
+    conn = sqlite3.connect("finance.db")
+    cursor = conn.cursor()
+    date = datetime.now().strftime("%Y-%m-%d")
+    cursor.execute("""
+        INSERT INTO transactions (type, amount, category, date)
+        VALUES (?, ?, ?, ?)
+    """, (transaction_type, amount, category, date))
+    conn.commit()
+    conn.close()
+    print("Transakcja dodana!")
+
+# Przeglądanie historii transakcji
+def view_transactions():
+    conn = sqlite3.connect("finance.db")
+    cursor = conn.cursor()
+    cursor.execute("SELECT * FROM transactions ORDER BY date DESC")
+    transactions = cursor.fetchall()
+    conn.close()
+    print("\nHistoria transakcji:")
+    for t in transactions:
+        print(f"{t[0]} | {t[1]} | {t[2]:.2f} | {t[3]} | {t[4]}")
+
+# Filtrowanie transakcji
+def filter_transactions(category=None, start_date=None, end_date=None):
+    conn = sqlite3.connect("finance.db")
+    cursor = conn.cursor()
+    query = "SELECT * FROM transactions WHERE 1=1"
+    params = []
+    if category:
+        query += " AND category = ?"
+        params.append(category)
+    if start_date:
+        query += " AND date >= ?"
+        params.append(start_date)
+    if end_date:
+        query += " AND date <= ?"
+        params.append(end_date)
+    cursor.execute(query, params)
+    transactions = cursor.fetchall()
+    conn.close()
+    print("\nFiltrowane transakcje:")
+    for t in transactions:
+        print(f"{t[0]} | {t[1]} | {t[2]:.2f} | {t[3]} | {t[4]}")
+
+# Wyświetlanie salda
+def calculate_balance():
+    conn = sqlite3.connect("finance.db")
+    cursor = conn.cursor()
+    cursor.execute("SELECT SUM(amount) FROM transactions WHERE type = 'income'")
+    income = cursor.fetchone()[0] or 0
+    cursor.execute("SELECT SUM(amount) FROM transactions WHERE type = 'expense'")
+    expense = cursor.fetchone()[0] or 0
+    conn.close()
+    balance = income - expense
+    print(f"Saldo konta: {balance:.2f} zł")
+
+# Wyświetlanie statystyk
+def show_statistics():
+    conn = sqlite3.connect("finance.db")
+    cursor = conn.cursor()
+    cursor.execute("SELECT category, SUM(amount) FROM transactions WHERE type = 'expense' GROUP BY category")
+    data = cursor.fetchall()
+    conn.close()
+    if not data:
+        print("Brak danych do wyświetlenia statystyk.")
+        return
+
+    categories = [d[0] for d in data]
+    amounts = [d[1] for d in data]
+
+    plt.bar(categories, amounts)
+    plt.title("Wydatki według kategorii")
+    plt.xlabel("Kategoria")
+    plt.ylabel("Kwota (zł)")
+    plt.show()
+
+# Główna pętla programu
+def main():
+    init_db()
+    while True:
+        print("\n--- MENU ---")
+        print("1. Dodaj transakcję")
+        print("2. Wyświetl historię transakcji")
+        print("3. Filtruj transakcje")
+        print("4. Pokaż saldo konta")
+        print("5. Wyświetl statystyki")
+        print("6. Wyjście")
+        choice = input("Wybierz opcję: ")
+
+        if choice == "1":
+            t_type = input("Typ (income/expense): ").strip().lower()
+            amount = float(input("Kwota: "))
+            category = input("Kategoria: ").strip()
+            add_transaction(t_type, amount, category)
+        elif choice == "2":
+            view_transactions()
+        elif choice == "3":
+            category = input("Kategoria (lub ENTER aby pominąć): ").strip() or None
+            start_date = input("Data początkowa (YYYY-MM-DD, lub ENTER aby pominąć): ").strip() or None
+            end_date = input("Data końcowa (YYYY-MM-DD, lub ENTER aby pominąć): ").strip() or None
+            filter_transactions(category, start_date, end_date)
+        elif choice == "4":
+            calculate_balance()
+        elif choice == "5":
+            show_statistics()
+        elif choice == "6":
+            print("Do widzenia!")
+            break
+        else:
+            print("Nieprawidłowa opcja. Spróbuj ponownie.")
+
+if __name__ == "__main__":
+    main()
+

requirements.txt

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+matplotlib

run.sh

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+#!/bin/bash
+ 
+pip -m venv .venv &&
+source .venv/bin/activate &&
+pip install -r requirements.txt &&
+python main.py