import { findClaimTokenByToken, updateClaimToken } from '../../repositories/claim-token-repo.js'
import { releaseReservedInventoryItem } from '../../repositories/inventory-repo.js'
import { getOrderItemById } from '../../repositories/order-item-repo.js'
import { getOrderById } from '../../repositories/order-repo.js'
import { findTaskByClaimTokenId, updateTask } from '../../repositories/task-repo.js'
import { createHttpError } from '../../utils/http.js'
import { formatFenToAmount, normalizeFen } from '../../utils/money.js'
import { parseTaskContext as parseTaskContextValue } from '../../utils/task-json.js'
import { nowIso } from '../../utils/time.js'
import { buildClaimUrl } from './claim-service.js'

export const CLAIM_TERMINAL_STATUSES = new Set(['expired', 'closed'])
export const KUAISHOU_CLOUD_CLAIM_GUIDE_BASE_PATH = '/kuaishou-cloud-guide'

export async function getClaimContext(token: unknown) {
  const normalized = String(token || '').trim()

  if (!normalized) {
    throw createHttpError('缺少领取 token', {
      statusCode: 400,
      errorCode: 'missing_claim_token',
    })
  }

  const claimToken = await findClaimTokenByToken(normalized)

  if (!claimToken) {
    throw createHttpError('领取链接无效或不存在', {
      statusCode: 404,
      errorCode: 'claim_token_not_found',
    })
  }

  const task = await findTaskByClaimTokenId(claimToken.id)

  if (!task) {
    throw createHttpError('领取任务不存在', {
      statusCode: 404,
      errorCode: 'claim_task_not_found',
    })
  }

  if (claimToken.status !== 'active') {
    throw createHttpError('领取链接当前不可用', {
      statusCode: 410,
      errorCode: 'claim_token_inactive',
    })
  }

  if (claimToken.expired_at && new Date(claimToken.expired_at).getTime() <= Date.now()) {
    const expiredContext = await expireClaimContext(claimToken, task)

    throw createHttpError('领取链接已过期', {
      statusCode: 410,
      errorCode: 'claim_token_expired',
      context: expiredContext,
    })
  }

  const [order, orderItem] = await Promise.all([
    getOrderById(task.order_id),
    getOrderItemById(task.order_item_id),
  ])

  if (!order || !orderItem) {
    throw createHttpError('领取任务关联订单不完整', {
      statusCode: 500,
      errorCode: 'claim_order_incomplete',
    })
  }

  return {
    claimToken,
    task,
    order,
    orderItem,
  }
}

export function buildClaimDetailPayload({ claimToken, task, order, orderItem }) {
  const kuaishouCloudFulfillment = mapClaimKuaishouCloudFulfillment(task, order)

  return {
    tokenStatus: claimToken.status,
    claimUrl: buildClaimUrl(claimToken.token),
    flowType: 'kuaishou_cloud',
    task: {
      taskId: task.id,
      taskNo: task.task_no,
      status: task.task_status,
      executorKey: task.executor_key || '',
      requiresSupportReview: false,
      expiresAt: claimToken.expired_at,
      claimedAt: task.claimed_at,
      roleConfirmedAt: task.role_confirmed_at,
      redeemedAt: task.redeemed_at,
      loginType: task.login_type,
      lastError: task.last_error,
      browserSessionId: task.browser_session_id,
    },
    order: {
      orderId: order.id,
      platform: order.platform,
      platformOrderId: order.platform_order_id,
      payStatus: order.pay_status,
      orderStatus: order.order_status,
      totalAmount: formatFenToAmount(order.total_amount),
      totalAmountFen: normalizeFen(order.total_amount),
      currency: order.currency,
    },
    orderItem: {
      orderItemId: orderItem.id,
      skuCode: orderItem.sku_code,
      skuName: orderItem.sku_name,
      quantity: orderItem.quantity,
    },
    session: null,
    kuaishouCloudFulfillment,
    result: task.redeemed_at
      ? {
        resultCode: String(task.result_code || ''),
        resultMessage: String(task.result_message || ''),
        screenshotReady: false,
        screenshotUrl: '',
      }
      : null,
  }
}

export function mapClaimKuaishouCloudFulfillment(task, order) {
  if (String(task?.executor_key || '').trim() !== 'kuaishou_ct_assisted') {
    return null
  }

  const source = parseTaskContext(task).kuaishouCloudFulfillment
  if (!source || typeof source !== 'object') {
    return null
  }

  const binding = source.binding && typeof source.binding === 'object' ? source.binding : {}
  const role = source.role && typeof source.role === 'object' ? source.role : {}
  const purchase = source.purchase && typeof source.purchase === 'object' ? source.purchase : {}
  const ticket = source.ticket && typeof source.ticket === 'object' ? source.ticket : {}
  const dispatch = source.dispatch && typeof source.dispatch === 'object' ? source.dispatch : {}
  const returnNumber = source.returnNumber && typeof source.returnNumber === 'object' ? source.returnNumber : {}
  const consume = source.consume && typeof source.consume === 'object' ? source.consume : {}

  return {
    flowType: 'kuaishou_cloud',
    shopId: String(order?.shop_id || '').trim(),
    shopName: String(order?.shop_name || '').trim(),
    guideImages: [
      `${KUAISHOU_CLOUD_CLAIM_GUIDE_BASE_PATH}/1.png`,
      `${KUAISHOU_CLOUD_CLAIM_GUIDE_BASE_PATH}/2.png`,
      `${KUAISHOU_CLOUD_CLAIM_GUIDE_BASE_PATH}/3.png`,
    ],
    ticket: {
      code: String(ticket.code || '').trim(),
      status: String(ticket.status || 'pending').trim() || 'pending',
      capturedAt: ticket.capturedAt || null,
      verifiedAt: ticket.verifiedAt || null,
      goodsTitle: String(ticket.goodsTitle || '').trim(),
      leftCount: Number(ticket.leftCount || 0) || 0,
    },
    binding: {
      prepareStatus: String(binding.prepareStatus || 'pending').trim() || 'pending',
      cloudSourceKey: String(binding.cloudSourceKey || '').trim(),
      skuId: Number(binding.skuId || 0) || 0,
      skuName: String(binding.skuName || '').trim(),
      vnKey: String(binding.vnKey || '').trim(),
      vnId: Number(binding.vnId || 0) || 0,
      bindUrl: String(binding.bindUrl || '').trim(),
      bindPreparedAt: binding.bindPreparedAt || null,
      bindExpiresAt: binding.bindExpiresAt || null,
      bindProbeAt: binding.bindProbeAt || null,
      bindProbeStatus: String(binding.bindProbeStatus || '').trim(),
      bindProbeMessage: String(binding.bindProbeMessage || '').trim(),
      vnPhone: String(binding.vnPhone || '').trim(),
      roleName: String(binding.roleName || '').trim(),
      roleId: String(binding.roleId || '').trim(),
    },
    role: {
      status: String(role.status || 'pending').trim() || 'pending',
      name: String(role.name || binding.roleName || '').trim(),
      rid: String(role.rid || binding.roleId || '').trim(),
      refreshedAt: role.refreshedAt || null,
      errorMessage: String(role.errorMessage || '').trim(),
    },
    purchase: {
      autoBuyEnabled: purchase.autoBuyEnabled !== false,
      minAssetReserve: Number(purchase.minAssetReserve || 0) || 0,
      usedKnapsack: purchase.usedKnapsack === true,
      purchaseTriggered: purchase.purchaseTriggered === true,
      assetBefore: Number(purchase.assetBefore || 0) || 0,
      assetAfter: Number(purchase.assetAfter || 0) || 0,
      purchaseAt: purchase.purchaseAt || null,
    },
    dispatch: {
      status: String(dispatch.status || 'pending').trim() || 'pending',
      dispatchAt: dispatch.dispatchAt || null,
      note: String(dispatch.note || '').trim(),
    },
    returnNumber: {
      status: String(returnNumber.status || 'pending').trim() || 'pending',
      returnedAt: returnNumber.returnedAt || null,
    },
    consume: {
      status: String(consume.status || 'pending').trim() || 'pending',
      shopId: String(consume.shopId || '').trim(),
      shopName: String(consume.shopName || '').trim(),
      consumedAt: consume.consumedAt || null,
      errorMessage: String(consume.errorMessage || '').trim(),
    },
  }
}

function parseTaskContext(task) {
  return parseTaskContextValue(task)
}

async function expireClaimContext(claimToken, task) {
  const now = nowIso()
  const nextClaimToken = await updateClaimToken(claimToken.id, {
    status: 'expired',
    updated_at: now,
  })

  let nextTask = task

  if (!CLAIM_TERMINAL_STATUSES.has(String(task.task_status || '')) && task.task_status !== 'redeemed') {
    if (task.primary_inventory_item_id) {
      await releaseReservedInventoryItem(task.primary_inventory_item_id, now)
    }

    nextTask = await updateTask(task.id, {
      task_status: 'expired',
      inventory_status: 'pending',
      user_action_status: 'expired',
      last_error: '领取链接已过期，预占库存项已释放',
      updated_at: now,
    })
  }

  return {
    claimToken: nextClaimToken,
    task: nextTask,
  }
}