add basic database functionality

src/chore_manager/database.py

@@ -0,0 +1,50 @@
+import sqlite3
+from pathlib import Path
+import os
+from dataclasses import dataclass, fields
+
+@dataclass
+class Task:
+    title: str
+    done: bool
+    def __post_init__(self):
+        for field in fields(self):
+            if field.type is bool:
+                value = getattr(self, field.name)
+                setattr(self, field.name, bool(value))
+
+class Database:
+    def __init__(self, filepath: Path|str):
+        is_new_database = not Path(filepath).exists()
+        self.con = sqlite3.connect(filepath)
+        self.cur = self.con.cursor()
+        if is_new_database:
+            self.initialize_table()
+
+    def initialize_table(self):
+        self.cur.execute("CREATE TABLE tasks(title TEXT, done INTEGER)")
+
+
+    def create_task(self, title: str, done:bool=False) -> None:
+        converted_done = ""
+        if done:
+            converted_done = "TRUE"
+        else:
+            converted_done = "FALSE"
+
+        self.cur.execute(f"""INSERT INTO tasks VALUES ("{title}", {converted_done});""") 
+        self.con.commit()
+
+    def get_all_tasks(self) -> list[Task]:
+        self.cur.execute("SELECT * FROM tasks")
+        raw_data = self.cur.fetchall()
+        return [Task(*task) for task in raw_data]
+
+if __name__ == '__main__':
+    try:
+        os.remove("DEBUG.db")
+    except FileNotFoundError:
+        pass
+    database = Database("DEBUG.db")
+    database.create_task("test")
+    print(database.get_all_tasks())