import {
  TASK_STATUS,
  hasKuaishouCloudRedeemResultStatus,
  isKuaishouCloudCompletedStatus,
  isKuaishouCloudRoleConfirmedStatus,
  normalizeTaskStatus,
} from '@/domain/task-status'
import type {
  ClaimDetailData,
  ClaimKuaishouCloudFlowInfo,
  ClaimKuaishouFeifeiFlowInfo,
} from '@/types/claim'

export type ResultVariant = 'success' | 'warning' | 'info'
export type ClaimSnapshot = ReturnType<typeof createClaimSnapshot>

export function createClaimSnapshot(
  detail: ClaimDetailData | null,
  options: { rebindingRole?: boolean } = {},
) {
  const flow = detail?.kuaishouCloudFulfillment || null
  const feifei = detail?.kuaishouFeifei || null
  const order = detail?.order || null
  const orderItem = detail?.orderItem || null
  const product = detail?.product || null
  const task = detail?.task || null
  const claimIdentity = detail?.claimIdentity || null

  const expectedUid = String(claimIdentity?.expectedUid || '').trim()
  const hasExpectedUid = Boolean(expectedUid || claimIdentity?.ready)
  const roleName = flow?.role.name || flow?.binding.roleName || ''
  const roleId = flow?.role.rid || flow?.binding.roleId || ''
  const isFeifeiFlow = detail?.flowType === 'kuaishou_feifei'
  const isBindUrlExpired = isDateExpired(flow?.binding.bindExpiresAt || '')
  const isBindingPrepared =
    flow?.binding.prepareStatus === 'ready' &&
    Boolean(String(flow?.binding.bindUrl || '').trim()) &&
    !isBindUrlExpired
  const isBindingPreparing = flow?.binding.prepareStatus === 'pending'
  const isRoleReady = Boolean(roleName || roleId)
  const isUidMatched =
    Boolean(expectedUid) && Boolean(roleId) && normalizeUid(expectedUid) === normalizeUid(roleId)
  const confirmRoleDisabledReason = resolveConfirmRoleDisabledReason({
    isBindingPrepared,
    isRoleReady,
    isUidMatched,
    expectedUid,
    roleId,
    rebindingRole: Boolean(options.rebindingRole),
  })
  const isRoleConfirmed = isKuaishouCloudRoleConfirmedStatus(task?.status)
  const isDispatched = String(flow?.dispatch.status || '').trim() === 'success'
  const normalizedStatus = normalizeTaskStatus(task?.status)
  const isRedeemFailed =
    normalizedStatus === TASK_STATUS.MANUAL_REVIEW ||
    normalizedStatus === TASK_STATUS.FAILED ||
    String(flow?.dispatch.status || '').trim() === 'failed' ||
    (isFeifeiFlow && [40, 50].includes(Number(feifei?.rechargeStatus || 0)))
  const isCompleted =
    isKuaishouCloudCompletedStatus(task?.status) ||
    (isFeifeiFlow && Number(feifei?.rechargeStatus || 0) === 30)
  const hasRedeemResult =
    isDispatched ||
    hasKuaishouCloudRedeemResultStatus(task?.status) ||
    (isFeifeiFlow && [30, 40, 50, 60].includes(Number(feifei?.rechargeStatus || 0)))
  const currentStep = resolveCurrentStep({
    hasExpectedUid,
    hasRedeemResult,
    isRoleConfirmed,
    isFeifeiFlow,
    isUidMatched,
  })
  const progressText = resolveProgressText({
    feifei,
    isFeifeiFlow,
    hasExpectedUid,
    expectedUid,
    hasRedeemResult,
    isRoleConfirmed,
    isBindingPrepared,
    isUidMatched,
  })
  const resultTitle = resolveResultTitle({ isRedeemFailed, isCompleted, isDispatched })
  const resultDescription = resolveResultDescription({
    detail,
    flow,
    feifei,
    task,
    isRedeemFailed,
    isCompleted,
  })
  const resultVariant: ResultVariant = isRedeemFailed
    ? 'warning'
    : isCompleted || isDispatched
      ? 'success'
      : 'info'

  return {
    flow,
    feifei,
    order,
    orderItem,
    product,
    task,
    claimIdentity,
    expectedUid,
    hasExpectedUid,
    roleName,
    roleId,
    isFeifeiFlow,
    isBindUrlExpired,
    isBindingPrepared,
    isBindingPreparing,
    isRoleReady,
    isUidMatched,
    confirmRoleDisabledReason,
    isRoleConfirmed,
    isDispatched,
    isRedeemFailed,
    isCompleted,
    hasRedeemResult,
    currentStep,
    progressText,
    resultTitle,
    resultDescription,
    resultVariant,
  }
}

export function normalizeUid(value: unknown) {
  return String(value || '')
    .trim()
    .replace(/\s+/g, '')
}

function resolveConfirmRoleDisabledReason(options: {
  isBindingPrepared: boolean
  isRoleReady: boolean
  isUidMatched: boolean
  expectedUid: string
  roleId: string
  rebindingRole: boolean
}) {
  if (!options.isBindingPrepared) {
    return '绑定二维码还在准备中，请稍后自动刷新'
  }
  if (!options.isRoleReady) {
    return '请先扫码绑定自己的角色，并刷新角色信息'
  }
  if (!options.isUidMatched) {
    return `当前绑定角色 ID（${options.roleId || '-'}）与填写 UID（${options.expectedUid || '-'}）不一致`
  }
  if (options.rebindingRole) {
    return '正在换绑角色，请稍候'
  }
  return ''
}

function resolveCurrentStep(options: {
  hasExpectedUid: boolean
  hasRedeemResult: boolean
  isRoleConfirmed: boolean
  isFeifeiFlow: boolean
  isUidMatched?: boolean
}) {
  if (!options.hasExpectedUid) {
    return 1
  }
  if (options.hasRedeemResult) {
    return 4
  }
  if (!options.isFeifeiFlow && options.isRoleConfirmed) {
    return 3
  }
  return 2
}

function resolveProgressText(options: {
  feifei: ClaimKuaishouFeifeiFlowInfo | null
  isFeifeiFlow: boolean
  hasExpectedUid: boolean
  expectedUid: string
  hasRedeemResult: boolean
  isRoleConfirmed: boolean
  isBindingPrepared: boolean
  isUidMatched: boolean
}) {
  if (!options.hasExpectedUid) {
    return '请填写游戏 UID'
  }
  if (options.isFeifeiFlow) {
    return options.feifei?.rechargeStatusLabel || `UID ${options.expectedUid}，请打开领取链接`
  }
  if (options.hasRedeemResult) {
    return '兑换结果已生成'
  }
  if (options.isRoleConfirmed) {
    return '角色已确认，等待兑换'
  }
  if (!options.isBindingPrepared) {
    return '绑定链接准备中，请稍候'
  }
  if (options.isUidMatched) {
    return 'UID 已匹配，请确认兑换'
  }
  return '请完成扫码绑定并匹配 UID'
}

function resolveResultTitle(options: {
  isRedeemFailed: boolean
  isCompleted: boolean
  isDispatched: boolean
}) {
  if (options.isRedeemFailed) {
    return '兑换遇到问题'
  }
  if (options.isCompleted) {
    return '兑换成功'
  }
  if (options.isDispatched) {
    return '兑换请求已提交'
  }
  return '结果已记录'
}

function resolveResultDescription(options: {
  detail: ClaimDetailData | null
  flow: ClaimKuaishouCloudFlowInfo | null
  feifei: ClaimKuaishouFeifeiFlowInfo | null
  task: ClaimDetailData['task'] | null
  isRedeemFailed: boolean
  isCompleted: boolean
}) {
  if (options.isRedeemFailed) {
    const message = String(
      options.task?.lastError ||
        options.flow?.dispatch.errorMessage ||
        options.feifei?.rechargeResultMessage ||
        options.detail?.result?.resultMessage ||
        '',
    ).trim()
    return message || '当前兑换流程需要客服处理，后续结果请以后台任务界面为准。'
  }

  if (options.isCompleted) {
    return '当前兑换流程已经完成。'
  }

  return '你的兑换请求已经提交。后续结果会由系统保存在后台任务界面。'
}

function isDateExpired(value: string | null) {
  const normalized = String(value || '').trim()
  if (!normalized) {
    return false
  }

  const expiresTime = Date.parse(normalized)
  return Number.isFinite(expiresTime) && expiresTime <= Date.now()
}