import Database from 'better-sqlite3';
import path from 'path';
import { fileURLToPath } from 'url';
import bcrypt from 'bcrypt';

const __dirname = path.dirname(fileURLToPath(import.meta.url));
const db = new Database(path.join(__dirname, 'sandbox.db'));

db.pragma('journal_mode = WAL');
db.pragma('foreign_keys = ON');

db.exec(`
  CREATE TABLE IF NOT EXISTS users (
    id TEXT PRIMARY KEY,
    username TEXT UNIQUE NOT NULL,
    email TEXT UNIQUE NOT NULL,
    password_hash TEXT NOT NULL,
    created_at TEXT DEFAULT (datetime('now'))
  );

  CREATE TABLE IF NOT EXISTS characters (
    id TEXT PRIMARY KEY,
    user_id TEXT NOT NULL,
    name TEXT NOT NULL,
    description TEXT DEFAULT '',
    personality_traits TEXT DEFAULT '[]',
    backstory TEXT DEFAULT '',
    avatar_url TEXT DEFAULT '',
    created_at TEXT DEFAULT (datetime('now')),
    updated_at TEXT DEFAULT (datetime('now')),
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
  );

  CREATE TABLE IF NOT EXISTS character_needs (
    id TEXT PRIMARY KEY,
    character_id TEXT NOT NULL,
    name TEXT NOT NULL,
    enabled INTEGER DEFAULT 1,
    initial_value REAL DEFAULT 50,
    min_value REAL DEFAULT 0,
    max_value REAL DEFAULT 100,
    decay_rate REAL DEFAULT 1,
    priority INTEGER DEFAULT 0,
    created_at TEXT DEFAULT (datetime('now')),
    FOREIGN KEY (character_id) REFERENCES characters(id) ON DELETE CASCADE
  );

  CREATE TABLE IF NOT EXISTS character_ui_elements (
    id TEXT PRIMARY KEY,
    character_id TEXT NOT NULL,
    need_id TEXT,
    element_type TEXT NOT NULL,
    config TEXT DEFAULT '{}',
    created_at TEXT DEFAULT (datetime('now')),
    FOREIGN KEY (character_id) REFERENCES characters(id) ON DELETE CASCADE,
    FOREIGN KEY (need_id) REFERENCES character_needs(id) ON DELETE SET NULL
  );

  CREATE TABLE IF NOT EXISTS character_brain_rules (
    id TEXT PRIMARY KEY,
    character_id TEXT NOT NULL,
    condition TEXT NOT NULL,
    action TEXT NOT NULL,
    priority INTEGER DEFAULT 0,
    enabled INTEGER DEFAULT 1,
    created_at TEXT DEFAULT (datetime('now')),
    FOREIGN KEY (character_id) REFERENCES characters(id) ON DELETE CASCADE
  );

  CREATE TABLE IF NOT EXISTS lorebooks (
    id TEXT PRIMARY KEY,
    user_id TEXT NOT NULL,
    name TEXT NOT NULL,
    description TEXT DEFAULT '',
    created_at TEXT DEFAULT (datetime('now')),
    updated_at TEXT DEFAULT (datetime('now')),
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
  );

  CREATE TABLE IF NOT EXISTS fragments (
    id TEXT PRIMARY KEY,
    lorebook_id TEXT NOT NULL,
    title TEXT NOT NULL,
    content TEXT DEFAULT '',
    tags TEXT DEFAULT '[]',
    linked_characters TEXT DEFAULT '[]',
    created_at TEXT DEFAULT (datetime('now')),
    updated_at TEXT DEFAULT (datetime('now')),
    FOREIGN KEY (lorebook_id) REFERENCES lorebooks(id) ON DELETE CASCADE
  );

  CREATE TABLE IF NOT EXISTS ai_training_data (
    id TEXT PRIMARY KEY,
    user_id TEXT NOT NULL,
    prompt TEXT NOT NULL,
    response TEXT NOT NULL,
    category TEXT DEFAULT 'general',
    created_at TEXT DEFAULT (datetime('now')),
    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
  );
`);

export default db;