CREATE TABLE IF NOT EXISTS accounts (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    username TEXT UNIQUE NOT NULL,
    pw_hash TEXT NOT NULL,
    is_admin INTEGER NOT NULL DEFAULT 0,
    created_at INTEGER NOT NULL,
    last_login INTEGER NOT NULL DEFAULT 0
);
CREATE TABLE IF NOT EXISTS server_meta (key TEXT PRIMARY KEY, value TEXT NOT NULL);
CREATE TABLE IF NOT EXISTS channels (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    parent_id INTEGER NOT NULL DEFAULT 0,
    name TEXT UNIQUE NOT NULL,
    topic TEXT NOT NULL DEFAULT '',
    password_hash TEXT NOT NULL DEFAULT '',
    max_users INTEGER NOT NULL DEFAULT 0,
    type INTEGER NOT NULL DEFAULT 0,
    audio_codec INTEGER NOT NULL DEFAULT 0,
    audio_mode INTEGER NOT NULL DEFAULT 0,
    audio_sample_rate INTEGER NOT NULL DEFAULT 48000,
    audio_bitrate_bps INTEGER NOT NULL DEFAULT 24000,
    audio_frame_ms INTEGER NOT NULL DEFAULT 20,
    audio_application INTEGER NOT NULL DEFAULT 0,
    audio_fec INTEGER NOT NULL DEFAULT 1,
    audio_expected_packet_loss INTEGER NOT NULL DEFAULT 10,
    audio_dtx INTEGER NOT NULL DEFAULT 1,
    audio_complexity INTEGER NOT NULL DEFAULT 5,
    audio_dred INTEGER NOT NULL DEFAULT 0,
    audio_packet_loss_mode INTEGER NOT NULL DEFAULT 0,
    sort_order INTEGER NOT NULL DEFAULT 0
);
CREATE TABLE IF NOT EXISTS bans (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    subject_type TEXT NOT NULL,
    subject TEXT NOT NULL,
    reason TEXT NOT NULL DEFAULT '',
    expires_at INTEGER NOT NULL DEFAULT 0,
    created_at INTEGER NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_bans_subject ON bans(subject_type, subject);