import { query } from '../../db/client.js'
import { TASK_STATUS } from '../../domain/task-status.js'
import { nowIso } from '../../utils/time.js'
import type { JsonObject } from '../../types/json.js'

export async function getAdminDashboardSummary() {
  const todayPrefix = nowIso().slice(0, 10)
  const paidPendingClaimStatuses = [
    TASK_STATUS.PAID,
    TASK_STATUS.LINK_GENERATED,
    TASK_STATUS.PENDING_BINDING_PREPARE,
    TASK_STATUS.WAITING_BINDING,
  ]
  const claimingStatuses = [TASK_STATUS.CLAIMED, TASK_STATUS.ROLE_CONFIRMED, TASK_STATUS.REDEEMING]
  const abnormalStatuses = [TASK_STATUS.RETRY_PENDING, TASK_STATUS.MANUAL_REVIEW]
  const result = await query(
    `
      SELECT
        (SELECT COUNT(*)::int FROM orders WHERE to_char(created_at AT TIME ZONE 'Asia/Shanghai', 'YYYY-MM-DD') = $1) AS today_orders,
        (
          SELECT COUNT(*)::int
          FROM fulfillment_tasks
          WHERE task_status = ANY($2::text[])
        ) AS paid_pending_claim,
        (
          SELECT COUNT(*)::int
          FROM fulfillment_tasks
          WHERE task_status = ANY($3::text[])
        ) AS claiming_tasks,
        (
          SELECT COUNT(*)::int
          FROM fulfillment_tasks
          WHERE task_status = $4
            AND to_char(updated_at AT TIME ZONE 'Asia/Shanghai', 'YYYY-MM-DD') = $1
        ) AS redeemed_today,
        (
          SELECT COUNT(*)::int
          FROM fulfillment_tasks
          WHERE task_status = ANY($5::text[])
        ) AS abnormal_tasks
    `,
    [
      todayPrefix,
      paidPendingClaimStatuses,
      claimingStatuses,
      TASK_STATUS.REDEEMED,
      abnormalStatuses,
    ],
  )
  const summary: JsonObject = result.rows[0] || {}

  return {
    todayOrders: Number(summary?.today_orders || 0),
    paidPendingClaim: Number(summary?.paid_pending_claim || 0),
    claimingTasks: Number(summary?.claiming_tasks || 0),
    redeemedToday: Number(summary?.redeemed_today || 0),
    abnormalTasks: Number(summary?.abnormal_tasks || 0),
  }
}