package store

type migration struct {
	Name string
	SQL  string
}

var migrations = []migration{
	{
		Name: "initial_state",
		SQL: `
CREATE TABLE allowed_users (
	telegram_user_id INTEGER PRIMARY KEY,
	username TEXT NOT NULL DEFAULT '',
	notes TEXT NOT NULL DEFAULT '',
	added_at TEXT NOT NULL DEFAULT (datetime('now'))
);

CREATE TABLE workspaces (
	id INTEGER PRIMARY KEY AUTOINCREMENT,
	path TEXT NOT NULL UNIQUE,
	label TEXT NOT NULL,
	is_default INTEGER NOT NULL DEFAULT 0,
	created_at TEXT NOT NULL DEFAULT (datetime('now'))
);

CREATE TABLE sessions (
	telegram_user_id INTEGER PRIMARY KEY,
	active_thread_id INTEGER,
	active_workspace_id INTEGER,
	model TEXT NOT NULL DEFAULT '',
	sandbox TEXT NOT NULL DEFAULT 'workspace-write',
	active_turn_id TEXT NOT NULL DEFAULT '',
	updated_at TEXT NOT NULL DEFAULT (datetime('now')),
	FOREIGN KEY(active_thread_id) REFERENCES threads(id) ON DELETE SET NULL,
	FOREIGN KEY(active_workspace_id) REFERENCES workspaces(id) ON DELETE SET NULL
);

CREATE TABLE threads (
	id INTEGER PRIMARY KEY AUTOINCREMENT,
	telegram_user_id INTEGER NOT NULL,
	codex_thread_id TEXT NOT NULL UNIQUE,
	workspace_id INTEGER NOT NULL,
	title TEXT NOT NULL DEFAULT '',
	archived INTEGER NOT NULL DEFAULT 0,
	created_at TEXT NOT NULL DEFAULT (datetime('now')),
	updated_at TEXT NOT NULL DEFAULT (datetime('now')),
	FOREIGN KEY(workspace_id) REFERENCES workspaces(id) ON DELETE RESTRICT
);

CREATE INDEX idx_threads_user_updated ON threads(telegram_user_id, archived, updated_at DESC);

CREATE TABLE pending_approvals (
	id INTEGER PRIMARY KEY AUTOINCREMENT,
	telegram_user_id INTEGER NOT NULL,
	codex_request_id TEXT NOT NULL,
	codex_thread_id TEXT NOT NULL,
	turn_id TEXT NOT NULL DEFAULT '',
	item_id TEXT NOT NULL DEFAULT '',
	kind TEXT NOT NULL,
	payload_json TEXT NOT NULL,
	message_chat_id INTEGER NOT NULL DEFAULT 0,
	message_id INTEGER NOT NULL DEFAULT 0,
	status TEXT NOT NULL DEFAULT 'pending',
	created_at TEXT NOT NULL DEFAULT (datetime('now')),
	resolved_at TEXT NOT NULL DEFAULT '',
	UNIQUE(telegram_user_id, codex_request_id)
);

CREATE INDEX idx_pending_approvals_status ON pending_approvals(telegram_user_id, status);

CREATE TABLE audit_log (
	id INTEGER PRIMARY KEY AUTOINCREMENT,
	telegram_user_id INTEGER NOT NULL DEFAULT 0,
	action TEXT NOT NULL,
	details TEXT NOT NULL DEFAULT '',
	created_at TEXT NOT NULL DEFAULT (datetime('now'))
);

CREATE INDEX idx_audit_user_created ON audit_log(telegram_user_id, created_at DESC);
`,
	},
	{
		Name: "session_reasoning_effort",
		SQL:  "ALTER TABLE sessions ADD COLUMN reasoning_effort TEXT NOT NULL DEFAULT ''",
	},
	{
		Name: "session_settings_message",
		SQL: `
ALTER TABLE sessions ADD COLUMN settings_chat_id INTEGER NOT NULL DEFAULT 0;
ALTER TABLE sessions ADD COLUMN settings_message_id INTEGER NOT NULL DEFAULT 0;
`,
	},
}