from __future__ import annotations

import sqlite3
from contextlib import contextmanager
from datetime import datetime, timezone
from .config import DB_PATH

SCHEMA = """
CREATE TABLE IF NOT EXISTS users (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  username TEXT UNIQUE NOT NULL,
  password_hash TEXT,
  email TEXT,
  display_name TEXT,
  external_auth_provider TEXT,
  external_subject TEXT,
  role TEXT DEFAULT 'user',
  is_active INTEGER DEFAULT 1,
  created_at TEXT NOT NULL,
  updated_at TEXT
);

CREATE TABLE IF NOT EXISTS user_profile_permissions (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL DEFAULT 0,
  access_level TEXT NOT NULL DEFAULT 'ro',
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id),
  FOREIGN KEY(user_id) REFERENCES users(id)
);


CREATE TABLE IF NOT EXISTS api_tokens (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  name TEXT NOT NULL,
  token_hash TEXT NOT NULL,
  token_prefix TEXT NOT NULL,
  last_used_at TEXT,
  revoked_at TEXT,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  FOREIGN KEY(user_id) REFERENCES users(id)
);
CREATE INDEX IF NOT EXISTS idx_api_tokens_user_active ON api_tokens(user_id, revoked_at);
CREATE INDEX IF NOT EXISTS idx_api_tokens_prefix ON api_tokens(token_prefix);
CREATE INDEX IF NOT EXISTS idx_api_tokens_active_user ON api_tokens(revoked_at, user_id);
CREATE INDEX IF NOT EXISTS idx_user_profile_permissions_user ON user_profile_permissions(user_id, profile_id);

CREATE TABLE IF NOT EXISTS user_preferences (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  theme TEXT DEFAULT 'dark',
  bootstrap_theme TEXT DEFAULT 'default',
  font_family TEXT DEFAULT 'default',
  active_rtorrent_id INTEGER,
  keyboard_json TEXT,
  mobile_mode INTEGER DEFAULT 0,
  compact_torrent_list_enabled INTEGER DEFAULT 0,
  footer_items_json TEXT,
  title_speed_enabled INTEGER DEFAULT 0,
  automation_toasts_enabled INTEGER DEFAULT 1,
  smart_queue_toasts_enabled INTEGER DEFAULT 1,
  interface_scale INTEGER DEFAULT 100,
  detail_panel_height INTEGER DEFAULT 255,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  FOREIGN KEY(user_id) REFERENCES users(id)
);
CREATE INDEX IF NOT EXISTS idx_user_preferences_user ON user_preferences(user_id);

CREATE TABLE IF NOT EXISTS profile_preferences (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  table_columns_json TEXT,
  torrent_sort_json TEXT,
  active_filter TEXT DEFAULT 'all',
  peers_refresh_seconds INTEGER DEFAULT 0,
  port_check_enabled INTEGER DEFAULT 0,
  tracker_favicons_enabled INTEGER DEFAULT 0,
  reverse_dns_enabled INTEGER DEFAULT 0,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id),
  FOREIGN KEY(user_id) REFERENCES users(id),
  FOREIGN KEY(profile_id) REFERENCES rtorrent_profiles(id)
);
CREATE INDEX IF NOT EXISTS idx_profile_preferences_user_profile ON profile_preferences(user_id, profile_id);

CREATE TABLE IF NOT EXISTS rtorrent_profiles (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  name TEXT NOT NULL,
  scgi_url TEXT NOT NULL,
  is_default INTEGER DEFAULT 0,
  timeout_seconds INTEGER DEFAULT 5,
  max_parallel_jobs INTEGER DEFAULT 5,
  light_parallel_jobs INTEGER DEFAULT 4,
  light_job_timeout_seconds INTEGER DEFAULT 300,
  heavy_job_timeout_seconds INTEGER DEFAULT 7200,
  pending_job_timeout_seconds INTEGER DEFAULT 900,
  is_remote INTEGER DEFAULT 0,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  FOREIGN KEY(user_id) REFERENCES users(id)
);
CREATE INDEX IF NOT EXISTS idx_rtorrent_profiles_user_default_name ON rtorrent_profiles(user_id, is_default, name COLLATE NOCASE);

CREATE TABLE IF NOT EXISTS jobs (
  id TEXT PRIMARY KEY,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  action TEXT NOT NULL,
  payload_json TEXT,
  status TEXT NOT NULL,
  attempts INTEGER DEFAULT 0,
  max_attempts INTEGER DEFAULT 2,
  error TEXT,
  result_json TEXT,
  state_json TEXT,
  progress_current INTEGER DEFAULT 0,
  progress_total INTEGER DEFAULT 0,
  heartbeat_at TEXT,
  created_at TEXT NOT NULL,
  started_at TEXT,
  finished_at TEXT,
  updated_at TEXT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_jobs_profile_status ON jobs(profile_id, status, created_at);
CREATE INDEX IF NOT EXISTS idx_jobs_created ON jobs(created_at);
CREATE INDEX IF NOT EXISTS idx_jobs_profile_created ON jobs(profile_id, created_at);

CREATE TABLE IF NOT EXISTS disk_monitor_preferences (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  paths_json TEXT,
  mode TEXT DEFAULT 'default',
  selected_path TEXT,
  stop_enabled INTEGER DEFAULT 0,
  stop_threshold INTEGER DEFAULT 98,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id),
  FOREIGN KEY(user_id) REFERENCES users(id),
  FOREIGN KEY(profile_id) REFERENCES rtorrent_profiles(id)
);

CREATE TABLE IF NOT EXISTS labels (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  name TEXT NOT NULL,
  color TEXT DEFAULT '#64748b',
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  UNIQUE(user_id, profile_id, name)
);

CREATE TABLE IF NOT EXISTS ratio_groups (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  name TEXT NOT NULL,
  min_ratio REAL DEFAULT 1.0,
  max_ratio REAL DEFAULT 2.0,
  seed_time_minutes INTEGER DEFAULT 0,
  min_seed_time_minutes INTEGER DEFAULT 0,
  ignore_private INTEGER DEFAULT 1,
  ignore_active_upload INTEGER DEFAULT 1,
  active_upload_min_bytes INTEGER DEFAULT 1024,
  move_path TEXT,
  set_label TEXT,
  action TEXT DEFAULT 'stop',
  enabled INTEGER DEFAULT 1,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  UNIQUE(user_id, profile_id, name)
);

CREATE TABLE IF NOT EXISTS rss_feeds (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  name TEXT NOT NULL,
  url TEXT NOT NULL,
  enabled INTEGER DEFAULT 1,
  interval_minutes INTEGER DEFAULT 30,
  last_error TEXT,
  last_checked_at TEXT,
  next_check_at TEXT,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL
);

CREATE TABLE IF NOT EXISTS rss_rules (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  name TEXT NOT NULL,
  pattern TEXT NOT NULL,
  exclude_pattern TEXT,
  min_size_mb INTEGER DEFAULT 0,
  max_size_mb INTEGER DEFAULT 0,
  category TEXT,
  quality TEXT,
  season INTEGER,
  episode INTEGER,
  save_path TEXT,
  label TEXT,
  start INTEGER DEFAULT 1,
  enabled INTEGER DEFAULT 1,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_rss_feeds_user_profile_enabled_next ON rss_feeds(user_id, profile_id, enabled, next_check_at);
CREATE INDEX IF NOT EXISTS idx_rss_rules_user_profile_enabled ON rss_rules(user_id, profile_id, enabled);

CREATE TABLE IF NOT EXISTS rss_history (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  feed_id INTEGER,
  rule_id INTEGER,
  title TEXT,
  link TEXT,
  status TEXT NOT NULL,
  message TEXT,
  created_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_rss_history_profile_created ON rss_history(profile_id, created_at);
CREATE INDEX IF NOT EXISTS idx_rss_history_user_profile_created ON rss_history(user_id, profile_id, created_at);
CREATE INDEX IF NOT EXISTS idx_rss_history_user_profile_status ON rss_history(user_id, profile_id, status);
CREATE UNIQUE INDEX IF NOT EXISTS idx_rss_history_unique_success ON rss_history(profile_id, COALESCE(rule_id,0), link) WHERE status IN ('queued','added');

CREATE TABLE IF NOT EXISTS ratio_assignments (
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  group_id INTEGER,
  group_name TEXT,
  applied_at TEXT,
  last_status TEXT,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(profile_id, torrent_hash)
);

CREATE TABLE IF NOT EXISTS ratio_history (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  group_id INTEGER,
  group_name TEXT,
  torrent_hash TEXT NOT NULL,
  torrent_name TEXT,
  action TEXT NOT NULL,
  status TEXT NOT NULL,
  reason TEXT,
  details_json TEXT,
  created_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_ratio_history_profile_created ON ratio_history(profile_id, created_at);
CREATE INDEX IF NOT EXISTS idx_ratio_history_user_profile_id ON ratio_history(user_id, profile_id, id);
CREATE INDEX IF NOT EXISTS idx_ratio_assignments_profile_status ON ratio_assignments(profile_id, last_status);
CREATE INDEX IF NOT EXISTS idx_ratio_groups_user_profile_enabled ON ratio_groups(user_id, profile_id, enabled);

CREATE TABLE IF NOT EXISTS app_backups (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  name TEXT NOT NULL,
  backup_type TEXT DEFAULT 'app',
  profile_id INTEGER,
  payload_json TEXT NOT NULL,
  created_at TEXT NOT NULL
);

CREATE TABLE IF NOT EXISTS smart_queue_settings (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  enabled INTEGER DEFAULT 0,
  max_active_downloads INTEGER DEFAULT 5,
  stalled_seconds INTEGER DEFAULT 300,
  min_speed_bytes INTEGER DEFAULT 1024,
  min_seeds INTEGER DEFAULT 1,
  min_peers INTEGER DEFAULT 0,
  ignore_seed_peer INTEGER DEFAULT 0,
  ignore_speed INTEGER DEFAULT 0,
  manage_stopped INTEGER DEFAULT 0,
  cooldown_minutes INTEGER DEFAULT 10,
  last_run_at TEXT,
  refill_enabled INTEGER DEFAULT 1,
  refill_interval_minutes INTEGER DEFAULT 0,
  last_refill_at TEXT,
  stop_batch_size INTEGER DEFAULT 50,
  start_grace_seconds INTEGER DEFAULT 900,
  protect_active_below_cap INTEGER DEFAULT 1,
  auto_stop_idle INTEGER DEFAULT 0,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id)
);

CREATE TABLE IF NOT EXISTS smart_queue_stalled (
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  first_stalled_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  timer_key TEXT DEFAULT '',
  PRIMARY KEY(profile_id, torrent_hash)
);

CREATE TABLE IF NOT EXISTS smart_queue_start_grace (
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  started_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(profile_id, torrent_hash)
);

CREATE TABLE IF NOT EXISTS smart_queue_exclusions (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  reason TEXT,
  created_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id, torrent_hash)
);

CREATE INDEX IF NOT EXISTS idx_smart_queue_exclusions_user_profile_created ON smart_queue_exclusions(user_id, profile_id, created_at);

CREATE TABLE IF NOT EXISTS smart_queue_history (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  event TEXT NOT NULL,
  paused_count INTEGER DEFAULT 0,
  resumed_count INTEGER DEFAULT 0,
  checked_count INTEGER DEFAULT 0,
  details_json TEXT,
  created_at TEXT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_smart_queue_history_profile_created ON smart_queue_history(profile_id, created_at);
CREATE INDEX IF NOT EXISTS idx_smart_queue_history_user_profile_created ON smart_queue_history(user_id, profile_id, created_at);

CREATE TABLE IF NOT EXISTS smart_queue_auto_labels (
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  previous_label TEXT,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(profile_id, torrent_hash)
);

CREATE TABLE IF NOT EXISTS traffic_history (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  profile_id INTEGER NOT NULL,
  down_rate INTEGER DEFAULT 0,
  up_rate INTEGER DEFAULT 0,
  total_down INTEGER DEFAULT 0,
  total_up INTEGER DEFAULT 0,
  created_at TEXT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_traffic_history_profile_created ON traffic_history(profile_id, created_at);

CREATE TABLE IF NOT EXISTS transfer_speed_peaks (
  profile_id INTEGER PRIMARY KEY,
  session_started_at TEXT NOT NULL,
  session_down_peak INTEGER DEFAULT 0,
  session_up_peak INTEGER DEFAULT 0,
  session_down_peak_at TEXT,
  session_up_peak_at TEXT,
  all_time_down_peak INTEGER DEFAULT 0,
  all_time_up_peak INTEGER DEFAULT 0,
  all_time_down_peak_at TEXT,
  all_time_up_peak_at TEXT,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  FOREIGN KEY(profile_id) REFERENCES rtorrent_profiles(id) ON DELETE CASCADE
);

CREATE TABLE IF NOT EXISTS automation_rules (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  name TEXT NOT NULL,
  enabled INTEGER DEFAULT 1,
  conditions_json TEXT NOT NULL,
  effects_json TEXT NOT NULL,
  cooldown_minutes INTEGER DEFAULT 60,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_automation_rules_profile_enabled ON automation_rules(profile_id, enabled);
CREATE INDEX IF NOT EXISTS idx_automation_rules_user_profile_enabled ON automation_rules(user_id, profile_id, enabled);
CREATE TABLE IF NOT EXISTS automation_rule_state (
  rule_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  condition_since_at TEXT,
  last_matched_at TEXT,
  last_applied_at TEXT,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(rule_id, profile_id, torrent_hash)
);
CREATE TABLE IF NOT EXISTS automation_history (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  rule_id INTEGER,
  torrent_hash TEXT,
  torrent_name TEXT,
  rule_name TEXT,
  actions_json TEXT,
  created_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_automation_history_profile_created ON automation_history(profile_id, created_at);
CREATE INDEX IF NOT EXISTS idx_automation_history_user_profile_created ON automation_history(user_id, profile_id, created_at);

CREATE TABLE IF NOT EXISTS rtorrent_config_overrides (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  key TEXT NOT NULL,
  value TEXT,
  baseline_value TEXT,
  apply_on_start INTEGER DEFAULT 0,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id, key)
);
CREATE INDEX IF NOT EXISTS idx_rtorrent_config_overrides_profile ON rtorrent_config_overrides(profile_id, apply_on_start);

CREATE TABLE IF NOT EXISTS app_settings (
  key TEXT PRIMARY KEY,
  value TEXT
);

CREATE TABLE IF NOT EXISTS poller_settings (
  profile_id INTEGER PRIMARY KEY,
  settings_json TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  FOREIGN KEY(profile_id) REFERENCES rtorrent_profiles(id)
);


CREATE TABLE IF NOT EXISTS download_plan_settings (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL,
  settings_json TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id)
);

CREATE TABLE IF NOT EXISTS download_plan_paused (
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  reason TEXT,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(profile_id, torrent_hash)
);
CREATE INDEX IF NOT EXISTS idx_download_plan_paused_profile ON download_plan_paused(profile_id, updated_at);

CREATE TABLE IF NOT EXISTS torrent_stats_cache (
  profile_id INTEGER PRIMARY KEY,
  payload_json TEXT NOT NULL,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  updated_epoch REAL DEFAULT 0
);

CREATE TABLE IF NOT EXISTS tracker_summary_cache (
  profile_id INTEGER NOT NULL,
  torrent_hash TEXT NOT NULL,
  trackers_json TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  updated_epoch REAL DEFAULT 0,
  PRIMARY KEY(profile_id, torrent_hash)
);
CREATE INDEX IF NOT EXISTS idx_tracker_summary_cache_profile ON tracker_summary_cache(profile_id, updated_epoch);


CREATE TABLE IF NOT EXISTS operation_logs (
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  user_id INTEGER NOT NULL,
  profile_id INTEGER,
  event_type TEXT NOT NULL,
  severity TEXT DEFAULT 'info',
  source TEXT DEFAULT 'system',
  torrent_hash TEXT,
  torrent_name TEXT,
  action TEXT,
  message TEXT NOT NULL,
  details_json TEXT,
  created_at TEXT NOT NULL
);
CREATE INDEX IF NOT EXISTS idx_operation_logs_profile_created ON operation_logs(profile_id, created_at);
CREATE INDEX IF NOT EXISTS idx_operation_logs_user_profile_created ON operation_logs(user_id, profile_id, created_at);
CREATE INDEX IF NOT EXISTS idx_operation_logs_event_type ON operation_logs(event_type, created_at);

CREATE TABLE IF NOT EXISTS operation_log_settings (
  user_id INTEGER NOT NULL,
  profile_id INTEGER NOT NULL DEFAULT 0,
  retention_mode TEXT DEFAULT 'days',
  retention_days INTEGER DEFAULT 30,
  retention_lines INTEGER DEFAULT 5000,
  created_at TEXT NOT NULL,
  updated_at TEXT NOT NULL,
  PRIMARY KEY(user_id, profile_id)
);
CREATE TABLE IF NOT EXISTS tracker_favicon_cache (
  domain TEXT PRIMARY KEY,
  source_url TEXT,
  file_path TEXT,
  mime_type TEXT,
  updated_at TEXT NOT NULL,
  updated_epoch REAL DEFAULT 0,
  error TEXT
);
"""

MIGRATIONS = [
    "ALTER TABLE api_tokens ADD COLUMN last_used_at TEXT",
    "ALTER TABLE users ADD COLUMN email TEXT",
    "ALTER TABLE users ADD COLUMN display_name TEXT",
    "ALTER TABLE users ADD COLUMN external_auth_provider TEXT",
    "ALTER TABLE users ADD COLUMN external_subject TEXT",
    "ALTER TABLE users ADD COLUMN role TEXT DEFAULT 'user'",
    "ALTER TABLE users ADD COLUMN is_active INTEGER DEFAULT 1",
    "ALTER TABLE users ADD COLUMN updated_at TEXT",
    "ALTER TABLE user_preferences ADD COLUMN mobile_mode INTEGER DEFAULT 0",
    "ALTER TABLE user_preferences ADD COLUMN compact_torrent_list_enabled INTEGER DEFAULT 0",
    "ALTER TABLE user_preferences ADD COLUMN bootstrap_theme TEXT DEFAULT 'default'",
    "ALTER TABLE user_preferences ADD COLUMN font_family TEXT DEFAULT 'default'",
    "ALTER TABLE user_preferences ADD COLUMN footer_items_json TEXT",
    "ALTER TABLE user_preferences ADD COLUMN title_speed_enabled INTEGER DEFAULT 0",
    "ALTER TABLE user_preferences ADD COLUMN interface_scale INTEGER DEFAULT 100",
    "ALTER TABLE user_preferences ADD COLUMN detail_panel_height INTEGER DEFAULT 255",
    "ALTER TABLE rtorrent_profiles ADD COLUMN max_parallel_jobs INTEGER DEFAULT 5",
    "ALTER TABLE rtorrent_profiles ADD COLUMN light_parallel_jobs INTEGER DEFAULT 4",
    "ALTER TABLE rtorrent_profiles ADD COLUMN light_job_timeout_seconds INTEGER DEFAULT 300",
    "ALTER TABLE rtorrent_profiles ADD COLUMN heavy_job_timeout_seconds INTEGER DEFAULT 7200",
    "ALTER TABLE rtorrent_profiles ADD COLUMN pending_job_timeout_seconds INTEGER DEFAULT 900",
    "ALTER TABLE rtorrent_profiles ADD COLUMN is_remote INTEGER DEFAULT 0",
    "ALTER TABLE jobs ADD COLUMN attempts INTEGER DEFAULT 0",
    "ALTER TABLE jobs ADD COLUMN max_attempts INTEGER DEFAULT 2",
    "ALTER TABLE jobs ADD COLUMN result_json TEXT",
    "ALTER TABLE jobs ADD COLUMN state_json TEXT",
    "ALTER TABLE jobs ADD COLUMN progress_current INTEGER DEFAULT 0",
    "ALTER TABLE jobs ADD COLUMN progress_total INTEGER DEFAULT 0",
    "ALTER TABLE jobs ADD COLUMN heartbeat_at TEXT",
    "ALTER TABLE jobs ADD COLUMN started_at TEXT",
    "ALTER TABLE jobs ADD COLUMN finished_at TEXT",
    "CREATE INDEX IF NOT EXISTS idx_jobs_status_updated ON jobs(status, updated_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_status_started ON jobs(status, started_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_status_heartbeat ON jobs(status, heartbeat_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_user_profile_created ON jobs(user_id, profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_profile_status_active ON jobs(profile_id, status)",
    "ALTER TABLE automation_rules ADD COLUMN cooldown_minutes INTEGER DEFAULT 60",
    "ALTER TABLE rtorrent_config_overrides ADD COLUMN apply_on_start INTEGER DEFAULT 0",
    "ALTER TABLE rtorrent_config_overrides ADD COLUMN baseline_value TEXT",
    "ALTER TABLE torrent_stats_cache ADD COLUMN updated_epoch REAL DEFAULT 0",
    "ALTER TABLE smart_queue_settings ADD COLUMN manage_stopped INTEGER DEFAULT 0",
    "ALTER TABLE smart_queue_settings ADD COLUMN min_peers INTEGER DEFAULT 0",
    "ALTER TABLE smart_queue_settings ADD COLUMN ignore_seed_peer INTEGER DEFAULT 0",
    "ALTER TABLE smart_queue_settings ADD COLUMN ignore_speed INTEGER DEFAULT 0",
    "ALTER TABLE smart_queue_stalled ADD COLUMN timer_key TEXT DEFAULT ''",
    "CREATE TABLE IF NOT EXISTS tracker_summary_cache (profile_id INTEGER NOT NULL, torrent_hash TEXT NOT NULL, trackers_json TEXT NOT NULL, updated_at TEXT NOT NULL, updated_epoch REAL DEFAULT 0, PRIMARY KEY(profile_id, torrent_hash))",
    "CREATE INDEX IF NOT EXISTS idx_tracker_summary_cache_profile ON tracker_summary_cache(profile_id, updated_epoch)",
    "CREATE TABLE IF NOT EXISTS tracker_favicon_cache (domain TEXT PRIMARY KEY, source_url TEXT, file_path TEXT, mime_type TEXT, updated_at TEXT NOT NULL, updated_epoch REAL DEFAULT 0, error TEXT)",
    "ALTER TABLE user_preferences ADD COLUMN automation_toasts_enabled INTEGER DEFAULT 1",
    "ALTER TABLE user_preferences ADD COLUMN smart_queue_toasts_enabled INTEGER DEFAULT 1",
    "ALTER TABLE smart_queue_settings ADD COLUMN cooldown_minutes INTEGER DEFAULT 10",
    "ALTER TABLE smart_queue_settings ADD COLUMN last_run_at TEXT",
    "ALTER TABLE smart_queue_settings ADD COLUMN refill_enabled INTEGER DEFAULT 1",
    "ALTER TABLE smart_queue_settings ADD COLUMN refill_interval_minutes INTEGER DEFAULT 0",
    "ALTER TABLE smart_queue_settings ADD COLUMN last_refill_at TEXT",
    "ALTER TABLE smart_queue_settings ADD COLUMN stop_batch_size INTEGER DEFAULT 50",
    "ALTER TABLE smart_queue_settings ADD COLUMN start_grace_seconds INTEGER DEFAULT 900",
    "ALTER TABLE smart_queue_settings ADD COLUMN protect_active_below_cap INTEGER DEFAULT 1",
    "ALTER TABLE smart_queue_settings ADD COLUMN auto_stop_idle INTEGER DEFAULT 0",
    "CREATE TABLE IF NOT EXISTS smart_queue_start_grace (profile_id INTEGER NOT NULL, torrent_hash TEXT NOT NULL, started_at TEXT NOT NULL, updated_at TEXT NOT NULL, PRIMARY KEY(profile_id, torrent_hash))",
    "ALTER TABLE rss_feeds ADD COLUMN interval_minutes INTEGER DEFAULT 30",
    "ALTER TABLE rss_feeds ADD COLUMN next_check_at TEXT",
    "ALTER TABLE rss_rules ADD COLUMN exclude_pattern TEXT",
    "ALTER TABLE rss_rules ADD COLUMN min_size_mb INTEGER DEFAULT 0",
    "ALTER TABLE rss_rules ADD COLUMN max_size_mb INTEGER DEFAULT 0",
    "ALTER TABLE rss_rules ADD COLUMN category TEXT",
    "ALTER TABLE rss_rules ADD COLUMN quality TEXT",
    "ALTER TABLE rss_rules ADD COLUMN season INTEGER",
    "ALTER TABLE rss_rules ADD COLUMN episode INTEGER",
    "ALTER TABLE ratio_groups ADD COLUMN min_seed_time_minutes INTEGER DEFAULT 0",
    "ALTER TABLE ratio_groups ADD COLUMN ignore_private INTEGER DEFAULT 1",
    "ALTER TABLE ratio_groups ADD COLUMN ignore_active_upload INTEGER DEFAULT 1",
    "ALTER TABLE ratio_groups ADD COLUMN active_upload_min_bytes INTEGER DEFAULT 1024",
    "ALTER TABLE ratio_groups ADD COLUMN move_path TEXT",
    "ALTER TABLE ratio_groups ADD COLUMN set_label TEXT",
    "ALTER TABLE automation_history ADD COLUMN torrent_name TEXT",
    "ALTER TABLE automation_history ADD COLUMN rule_name TEXT",
    "ALTER TABLE automation_history ADD COLUMN actions_json TEXT",
    "ALTER TABLE automation_history ADD COLUMN torrent_hash TEXT",
    "CREATE TABLE IF NOT EXISTS rss_history (id INTEGER PRIMARY KEY AUTOINCREMENT, user_id INTEGER NOT NULL, profile_id INTEGER, feed_id INTEGER, rule_id INTEGER, title TEXT, link TEXT, status TEXT NOT NULL, message TEXT, created_at TEXT NOT NULL)",
    "CREATE INDEX IF NOT EXISTS idx_rss_history_profile_created ON rss_history(profile_id, created_at)",
    "CREATE UNIQUE INDEX IF NOT EXISTS idx_rss_history_unique_success ON rss_history(profile_id, COALESCE(rule_id,0), link) WHERE status IN ('queued','added')",
    "CREATE TABLE IF NOT EXISTS ratio_assignments (profile_id INTEGER NOT NULL, torrent_hash TEXT NOT NULL, group_id INTEGER, group_name TEXT, applied_at TEXT, last_status TEXT, updated_at TEXT NOT NULL, PRIMARY KEY(profile_id, torrent_hash))",
    "CREATE TABLE IF NOT EXISTS ratio_history (id INTEGER PRIMARY KEY AUTOINCREMENT, user_id INTEGER NOT NULL, profile_id INTEGER NOT NULL, group_id INTEGER, group_name TEXT, torrent_hash TEXT NOT NULL, torrent_name TEXT, action TEXT NOT NULL, status TEXT NOT NULL, reason TEXT, details_json TEXT, created_at TEXT NOT NULL)",
    "CREATE INDEX IF NOT EXISTS idx_ratio_history_profile_created ON ratio_history(profile_id, created_at)",
    "CREATE TABLE IF NOT EXISTS app_backups (id INTEGER PRIMARY KEY AUTOINCREMENT, user_id INTEGER NOT NULL, name TEXT NOT NULL, payload_json TEXT NOT NULL, created_at TEXT NOT NULL)",
    "CREATE TABLE IF NOT EXISTS disk_monitor_preferences (user_id INTEGER NOT NULL, profile_id INTEGER NOT NULL, paths_json TEXT, mode TEXT DEFAULT 'default', selected_path TEXT, stop_enabled INTEGER DEFAULT 0, stop_threshold INTEGER DEFAULT 98, created_at TEXT NOT NULL, updated_at TEXT NOT NULL, PRIMARY KEY(user_id, profile_id), FOREIGN KEY(user_id) REFERENCES users(id), FOREIGN KEY(profile_id) REFERENCES rtorrent_profiles(id))",
    "CREATE TABLE IF NOT EXISTS download_plan_settings (user_id INTEGER NOT NULL, profile_id INTEGER NOT NULL, settings_json TEXT NOT NULL, updated_at TEXT NOT NULL, PRIMARY KEY(user_id, profile_id))",
    "CREATE TABLE IF NOT EXISTS download_plan_paused (profile_id INTEGER NOT NULL, torrent_hash TEXT NOT NULL, reason TEXT, created_at TEXT NOT NULL, updated_at TEXT NOT NULL, PRIMARY KEY(profile_id, torrent_hash))",
    "CREATE INDEX IF NOT EXISTS idx_download_plan_paused_profile ON download_plan_paused(profile_id, updated_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_created ON jobs(created_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_profile_created ON jobs(profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_rss_feeds_user_profile_enabled_next ON rss_feeds(user_id, profile_id, enabled, next_check_at)",
    "CREATE INDEX IF NOT EXISTS idx_rss_rules_user_profile_enabled ON rss_rules(user_id, profile_id, enabled)",
    "CREATE INDEX IF NOT EXISTS idx_rss_history_user_profile_created ON rss_history(user_id, profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_rss_history_user_profile_status ON rss_history(user_id, profile_id, status)",
    "CREATE INDEX IF NOT EXISTS idx_ratio_groups_user_profile_enabled ON ratio_groups(user_id, profile_id, enabled)",
    "CREATE INDEX IF NOT EXISTS idx_ratio_assignments_profile_status ON ratio_assignments(profile_id, last_status)",
    "CREATE INDEX IF NOT EXISTS idx_ratio_history_user_profile_id ON ratio_history(user_id, profile_id, id)",
    "CREATE INDEX IF NOT EXISTS idx_smart_queue_exclusions_user_profile_created ON smart_queue_exclusions(user_id, profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_smart_queue_history_user_profile_created ON smart_queue_history(user_id, profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_automation_rules_user_profile_enabled ON automation_rules(user_id, profile_id, enabled)",
    "CREATE INDEX IF NOT EXISTS idx_automation_history_user_profile_created ON automation_history(user_id, profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_user_preferences_user ON user_preferences(user_id)",
    "CREATE INDEX IF NOT EXISTS idx_rtorrent_profiles_user_default_name ON rtorrent_profiles(user_id, is_default, name COLLATE NOCASE)",
    "CREATE TABLE IF NOT EXISTS operation_logs (id INTEGER PRIMARY KEY AUTOINCREMENT, user_id INTEGER NOT NULL, profile_id INTEGER, event_type TEXT NOT NULL, severity TEXT DEFAULT 'info', source TEXT DEFAULT 'system', torrent_hash TEXT, torrent_name TEXT, action TEXT, message TEXT NOT NULL, details_json TEXT, created_at TEXT NOT NULL)",
    "CREATE INDEX IF NOT EXISTS idx_operation_logs_profile_created ON operation_logs(profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_operation_logs_user_profile_created ON operation_logs(user_id, profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_operation_logs_event_type ON operation_logs(event_type, created_at)",
    "CREATE TABLE IF NOT EXISTS profile_preferences (user_id INTEGER NOT NULL, profile_id INTEGER NOT NULL, table_columns_json TEXT, torrent_sort_json TEXT, active_filter TEXT DEFAULT 'all', peers_refresh_seconds INTEGER DEFAULT 0, port_check_enabled INTEGER DEFAULT 0, tracker_favicons_enabled INTEGER DEFAULT 0, reverse_dns_enabled INTEGER DEFAULT 0, created_at TEXT NOT NULL, updated_at TEXT NOT NULL, PRIMARY KEY(user_id, profile_id), FOREIGN KEY(user_id) REFERENCES users(id), FOREIGN KEY(profile_id) REFERENCES rtorrent_profiles(id))",
    "ALTER TABLE app_backups ADD COLUMN backup_type TEXT DEFAULT 'app'",
    'ALTER TABLE app_backups ADD COLUMN profile_id INTEGER',
    'CREATE TABLE IF NOT EXISTS poller_settings (profile_id INTEGER PRIMARY KEY, settings_json TEXT NOT NULL, updated_at TEXT NOT NULL, FOREIGN KEY(profile_id) REFERENCES rtorrent_profiles(id))',
    "CREATE TABLE IF NOT EXISTS operation_log_settings (user_id INTEGER NOT NULL, profile_id INTEGER NOT NULL DEFAULT 0, retention_mode TEXT DEFAULT 'days', retention_days INTEGER DEFAULT 30, retention_lines INTEGER DEFAULT 5000, created_at TEXT NOT NULL, updated_at TEXT NOT NULL, PRIMARY KEY(user_id, profile_id))",
]

POST_MIGRATION_INDEXES = [
    "CREATE INDEX IF NOT EXISTS idx_api_tokens_active_user ON api_tokens(revoked_at, user_id)",
    "CREATE INDEX IF NOT EXISTS idx_user_profile_permissions_user ON user_profile_permissions(user_id, profile_id)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_status_updated ON jobs(status, updated_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_status_started ON jobs(status, started_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_status_heartbeat ON jobs(status, heartbeat_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_user_profile_created ON jobs(user_id, profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_jobs_profile_status_active ON jobs(profile_id, status)",
    "CREATE INDEX IF NOT EXISTS idx_operation_logs_profile_created ON operation_logs(profile_id, created_at)",
    "CREATE INDEX IF NOT EXISTS idx_operation_logs_user_profile_created ON operation_logs(user_id, profile_id, created_at)",
]

def utcnow() -> str:
    return datetime.now(timezone.utc).isoformat(timespec="seconds")


def dict_factory(cursor, row):
    return {col[0]: row[idx] for idx, col in enumerate(cursor.description)}


@contextmanager
def connect():
    DB_PATH.parent.mkdir(parents=True, exist_ok=True)
    conn = sqlite3.connect(DB_PATH, timeout=30)
    conn.row_factory = dict_factory
    conn.execute("PRAGMA foreign_keys = ON")
    conn.execute("PRAGMA busy_timeout = 30000")
    conn.execute("PRAGMA synchronous = NORMAL")
    try:
        yield conn
        conn.commit()
    finally:
        conn.close()


def init_db():
    with connect() as conn:
        try:
            conn.execute("PRAGMA journal_mode = WAL")
        except sqlite3.OperationalError:
            pass
        conn.executescript(SCHEMA)
        for sql in MIGRATIONS:
            try:
                conn.execute(sql)
            except sqlite3.OperationalError:
                pass
        for sql in POST_MIGRATION_INDEXES:
            try:
                conn.execute(sql)
            except sqlite3.OperationalError:
                pass
        now = utcnow()
        conn.execute(
            "INSERT OR IGNORE INTO users(id, username, password_hash, role, is_active, created_at, updated_at) VALUES(1, 'default', NULL, 'admin', 1, ?, ?)",
            (now, now),
        )
        conn.execute("UPDATE users SET role=COALESCE(role, 'admin'), is_active=COALESCE(is_active, 1), updated_at=COALESCE(updated_at, ?) WHERE id=1", (now,))
        pref = conn.execute("SELECT id FROM user_preferences WHERE user_id=1").fetchone()
        if not pref:
            conn.execute(
                "INSERT INTO user_preferences(user_id, theme, created_at, updated_at) VALUES(1, 'dark', ?, ?)",
                (now, now),
            )
    try:
        from .services.auth import ensure_admin_user
        ensure_admin_user()
    except Exception:
        pass


def default_user_id() -> int:
    return 1