import { sqlWrapper } from "../../core/db.ts";

export async function getActiveSessions(userId: string) {
  const sessions = await sqlWrapper.sql`
        SELECT id, label, is_agent, custom_scopes, last_activity_at, last_activity_action, created_at, expires_at
        FROM sessions
        WHERE user_id = ${userId} AND expires_at > NOW()
        ORDER BY created_at DESC
    `;
  return sessions;
}

export async function delegateSession(
  sessionId: string,
  userId: string,
  label: string,
  customScopes: string[],
  expiresAt: Date,
) {
  await sqlWrapper.sql`
        INSERT INTO sessions (id, user_id, label, is_agent, custom_scopes, expires_at, created_at)
        VALUES (${sessionId}, ${userId}, ${label}, true, ${customScopes}, ${expiresAt.toISOString()}, NOW())
    `;
}

export async function getSessionByIdAndUserId(
  sessionId: string,
  userId: string,
) {
  const session = await sqlWrapper.sql`
        SELECT id, is_agent, expires_at FROM sessions WHERE id = ${sessionId} AND user_id = ${userId}
    `;
  if (!session || session.length === 0) return null;
  return session[0];
}

export async function updateSessionScopes(
  sessionId: string,
  customScopes: string[],
) {
  await sqlWrapper.sql`
        UPDATE sessions SET custom_scopes = ${customScopes} WHERE id = ${sessionId}
    `;
}

export async function getSessionById(sessionId: string) {
  const session = await sqlWrapper.sql`
        SELECT id FROM sessions WHERE id = ${sessionId}
    `;
  if (!session || session.length === 0) return null;
  return session[0];
}

export async function setSessionPaused(sessionId: string, isPaused: boolean) {
  await sqlWrapper.sql`
        UPDATE sessions SET is_paused = ${isPaused} WHERE id = ${sessionId}
    `;
}

export async function extendSessionExpiry(sessionId: string, newExpiry: Date) {
  await sqlWrapper.sql`
        UPDATE sessions SET expires_at = ${newExpiry.toISOString()} WHERE id = ${sessionId}
    `;
}

export async function revokeSession(sessionId: string) {
  await sqlWrapper.sql`DELETE FROM sessions WHERE id = ${sessionId}`;
}

export async function getSessionWithOwnershipCheck(
  sessionId: string,
  userId: string,
  isAdmin: boolean,
) {
  const session = await sqlWrapper.sql`
        SELECT s.id
        FROM sessions s
        JOIN users u ON s.user_id = u.id
        WHERE s.id = ${sessionId}
          AND (
            s.user_id = ${userId}
            OR ${isAdmin}
            OR EXISTS (
              SELECT 1 FROM event_passes ep
              WHERE ep.created_by = ${userId}
                AND u.event_pass_id = ep.id
            )
          )
    `;
  if (!session || session.length === 0) return null;
  return session[0];
}