#!/usr/bin/env python3
"""Erstellt eine lokale SQLite Demo-Datenbank mit 4 Beispiel-Terminen."""

import os
import sqlite3
from datetime import datetime, timedelta

DB_PATH = os.environ.get("DB_PATH", os.path.join(os.path.dirname(__file__), "demo.db"))

SCHEMA = """
CREATE TABLE IF NOT EXISTS calendar_events (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    calendar_label TEXT NOT NULL,
    instance_key TEXT NOT NULL,
    uid TEXT NOT NULL,
    recurrence_id TEXT,
    summary TEXT,
    description TEXT,
    location TEXT,
    start_at TEXT NOT NULL,
    end_at TEXT,
    all_day INTEGER NOT NULL DEFAULT 0,
    status TEXT DEFAULT 'CONFIRMED',
    deleted INTEGER NOT NULL DEFAULT 0,
    last_seen_at TEXT NOT NULL,
    created_at TEXT NOT NULL DEFAULT (datetime('now')),
    updated_at TEXT NOT NULL DEFAULT (datetime('now')),
    UNIQUE (calendar_label, instance_key)
);
CREATE INDEX IF NOT EXISTS idx_start ON calendar_events(start_at);
CREATE INDEX IF NOT EXISTS idx_deleted ON calendar_events(deleted);
"""


def seed():
    if os.path.exists(DB_PATH):
        os.remove(DB_PATH)

    conn = sqlite3.connect(DB_PATH)
    conn.executescript(SCHEMA)

    now = datetime.now().replace(second=0, microsecond=0, tzinfo=None)
    today = now.replace(hour=0, minute=0, second=0)

    events = [
        {
            "calendar_label": "demo",
            "instance_key": f"team-daily-{today.strftime('%Y%m%d')}",
            "uid": "team-daily-001@demo",
            "summary": "Team Daily",
            "description": "Tägliches Standup-Meeting mit dem gesamten Team.",
            "location": "Besprechungsraum A / Zoom",
            "start_at": (today + timedelta(hours=14)).strftime("%Y-%m-%d %H:%M:%S"),
            "end_at": (today + timedelta(hours=15)).strftime("%Y-%m-%d %H:%M:%S"),
            "all_day": 0,
            "status": "CONFIRMED",
        },
        {
            "calendar_label": "demo",
            "instance_key": f"yoga-{today.strftime('%Y%m%d')}",
            "uid": "yoga-002@demo",
            "summary": "Yoga Kurs",
            "description": "Wöchentlicher Yoga-Kurs in der Volkshochschule.",
            "location": "Volkshochschule, Raum 204",
            "start_at": (today + timedelta(hours=18, minutes=30)).strftime("%Y-%m-%d %H:%M:%S"),
            "end_at": (today + timedelta(hours=20)).strftime("%Y-%m-%d %H:%M:%S"),
            "all_day": 0,
            "status": "CONFIRMED",
        },
        {
            "calendar_label": "demo",
            "instance_key": f"deadline-{(today + timedelta(days=1)).strftime('%Y%m%d')}",
            "uid": "deadline-003@demo",
            "summary": "Projekt-Deadline",
            "description": "Abgabe des Projektberichts an die Geschäftsleitung.",
            "location": "",
            "start_at": (today + timedelta(days=1)).strftime("%Y-%m-%d 00:00:00"),
            "end_at": (today + timedelta(days=1)).strftime("%Y-%m-%d 23:59:59"),
            "all_day": 1,
            "status": "TENTATIVE",
        },
        {
            "calendar_label": "demo",
            "instance_key": f"arzt-{(today + timedelta(days=2)).strftime('%Y%m%d')}",
            "uid": "arzt-004@demo",
            "summary": "Arzttermin",
            "description": "Routineuntersuchung beim Hausarzt. Bitte Impfpass mitbringen.",
            "location": "Dr. Müller, Gesundheitsstraße 12",
            "start_at": (today + timedelta(days=2, hours=10)).strftime("%Y-%m-%d %H:%M:%S"),
            "end_at": (today + timedelta(days=2, hours=11, minutes=30)).strftime("%Y-%m-%d %H:%M:%S"),
            "all_day": 0,
            "status": "CONFIRMED",
        },
    ]

    conn.executemany(
        """INSERT INTO calendar_events
           (calendar_label, instance_key, uid, summary, description, location,
            start_at, end_at, all_day, status, last_seen_at)
           VALUES
           (:calendar_label, :instance_key, :uid, :summary, :description, :location,
            :start_at, :end_at, :all_day, :status, datetime('now'))""",
        events,
    )
    conn.commit()
    conn.close()
    print(f"Demo-Datenbank erstellt: {DB_PATH}")
    print(f"4 Demo-Events eingefuegt.")


if __name__ == "__main__":
    seed()