#!/usr/bin/env python3
"""
Auth DB — users and subscriptions schema for turf_saas.db
Sprint 2-3: Auth JWT + Multi-tenant (HRT-28)
HRT-79: migration Telegram columns
"""

import sqlite3
import os

# NOTE: DB_PATH kept for backward compat, but get_db() reads env at call time
# so test isolation works correctly when TURF_SAAS_DB is set per-module.
DB_PATH = os.environ.get("TURF_SAAS_DB", "/home/h3r7/turf_saas/turf_saas.db")


def get_db():
    # Read env dynamically so test overrides of TURF_SAAS_DB are respected
    db_path = os.environ.get("TURF_SAAS_DB", DB_PATH)
    conn = sqlite3.connect(db_path)
    conn.row_factory = sqlite3.Row
    return conn


def init_auth_tables():
    """Create users and subscriptions tables if they don't exist."""
    conn = get_db()
    c = conn.cursor()

    c.executescript("""
        CREATE TABLE IF NOT EXISTS users (
            id              INTEGER PRIMARY KEY AUTOINCREMENT,
            email           TEXT    NOT NULL UNIQUE,
            password_hash   TEXT    NOT NULL,
            plan            TEXT    NOT NULL DEFAULT 'free'
                            CHECK(plan IN ('free','premium','pro')),
            created_at      DATETIME NOT NULL DEFAULT (datetime('now')),
            is_active       INTEGER  NOT NULL DEFAULT 1,
            daily_usage     INTEGER  NOT NULL DEFAULT 0,
            last_usage_date TEXT     DEFAULT NULL
        );

        CREATE TABLE IF NOT EXISTS subscriptions (
            id                  INTEGER PRIMARY KEY AUTOINCREMENT,
            user_id             INTEGER NOT NULL REFERENCES users(id),
            plan                TEXT    NOT NULL CHECK(plan IN ('free','premium','pro')),
            start_date          DATETIME NOT NULL DEFAULT (datetime('now')),
            end_date            DATETIME,
            stripe_customer_id  TEXT,
            FOREIGN KEY (user_id) REFERENCES users(id)
        );

        CREATE TABLE IF NOT EXISTS refresh_tokens (
            id          INTEGER PRIMARY KEY AUTOINCREMENT,
            user_id     INTEGER NOT NULL REFERENCES users(id),
            token_hash  TEXT    NOT NULL UNIQUE,
            created_at  DATETIME NOT NULL DEFAULT (datetime('now')),
            expires_at  DATETIME NOT NULL,
            revoked     INTEGER  NOT NULL DEFAULT 0
        );

        CREATE INDEX IF NOT EXISTS idx_users_email          ON users(email);
        CREATE INDEX IF NOT EXISTS idx_subscriptions_user   ON subscriptions(user_id);
        CREATE INDEX IF NOT EXISTS idx_refresh_tokens_user  ON refresh_tokens(user_id);
        CREATE INDEX IF NOT EXISTS idx_refresh_tokens_hash  ON refresh_tokens(token_hash);
    """)

    conn.commit()
    conn.close()
    print("[auth_db] Tables users, subscriptions, refresh_tokens created/verified.")

    # Apply Telegram columns migration (idempotent)
    migrate_telegram_columns()


def migrate_telegram_columns():
    """
    Migration idempotente : ajoute les colonnes Telegram à la table users.
    Utilise ALTER TABLE ... ADD COLUMN avec try/except OperationalError
    pour être safe si les colonnes existent déjà (SQLite ne supporte pas IF NOT EXISTS).
    HRT-79
    """
    conn = get_db()
    c = conn.cursor()
    columns = [
        ("telegram_chat_id", "TEXT    DEFAULT NULL"),
        ("alert_value_bets", "INTEGER DEFAULT 1"),
        ("alert_top1", "INTEGER DEFAULT 1"),
        ("alert_quinte_only", "INTEGER DEFAULT 0"),
    ]
    for col, definition in columns:
        try:
            c.execute(f"ALTER TABLE users ADD COLUMN {col} {definition}")
            print(f"[auth_db] Colonne '{col}' ajoutée.")
        except sqlite3.OperationalError:
            # Column already exists — safe to ignore
            pass
    conn.commit()
    conn.close()
    print("[auth_db] Migration Telegram columns OK.")


if __name__ == "__main__":
    init_auth_tables()