"use client"

import { Button } from "@/components/ui/button"
import { getShopById } from "@/lib/api"
import {
  acceptOrder,
  cancelPreAccept,
  confirmClose,
  payOrder,
  requestClose,
} from "@/lib/api/orders"
import type { ApiDecision } from "@/lib/errors"
import { notifyInfo, notifySuccess } from "@/lib/toast"
import type { Order, OrderStatus } from "@/lib/types"
import { useAuthStore } from "@/store/auth"
import {
  AlertTriangle,
  CheckCircle2,
  Clock,
  MessageSquare,
  RefreshCw,
  Star,
  XCircle,
} from "lucide-react"
import Link from "next/link"
import { useCallback, useEffect, useState } from "react"

interface OrderActionsProps {
  orderId: string
  order?: Order
  onOrderChange?: (order: Order) => void
  initialStatus: OrderStatus
  chatTargetId?: string
  isPlayerParticipant?: boolean
  serviceId: string
}

function showFeedback(message: string) {
  notifySuccess(message)
}

export default function OrderActions({
  orderId,
  order: orderProp,
  onOrderChange,
  initialStatus,
  chatTargetId,
  isPlayerParticipant,
  serviceId,
}: OrderActionsProps) {
  const currentUserId = useAuthStore((state) => state.user?.id)
  const order = orderProp
  const [dispatchMode, setDispatchMode] = useState<"manual" | "auto" | null>(null)
  const resolvedChatTargetId = chatTargetId

  useEffect(() => {
    if (!order?.shopId) return

    let cancelled = false

    Promise.resolve()
      .then(() => {
        if (cancelled) return undefined
        setDispatchMode(null)
        return getShopById(order.shopId ?? "")
      })
      .then((shop) => {
        if (cancelled || !shop) return
        setDispatchMode(shop.dispatchMode)
      })
      .catch(() => {
        if (cancelled) return
        setDispatchMode(null)
      })

    return () => {
      cancelled = true
    }
  }, [order?.shopId])

  const status = order?.status ?? initialStatus
  const isConsumer = String(order?.consumerId) === currentUserId
  const isPlayer = isPlayerParticipant === true
  const isParticipant = isConsumer || isPlayer

  type ActionResult = { decision: ApiDecision; order?: Order }

  const handleDecision = useCallback((okMessage: string, result: ActionResult) => {
    if (result.decision.ok) {
      showFeedback(okMessage)
      return
    }

    notifyInfo(result.decision.error.msg)
  }, [])

  const runAction = useCallback(
    (okMessage: string, actionCall: ActionResult | Promise<ActionResult>) => {
      Promise.resolve(actionCall)
        .then((result) => {
          handleDecision(okMessage, result)
          if (result.order) onOrderChange?.(result.order)
        })
        .catch(() => {
          notifyInfo("操作失败")
        })
    },
    [handleDecision, onOrderChange],
  )

  return (
    <div className="flex flex-wrap items-center gap-2">
      {status === "pending_payment" && isConsumer && (
        <Button
          onClick={() => {
            if (!currentUserId) {
              notifyInfo("请先登录")
              return
            }
            runAction("订单支付成功", payOrder(orderId))
          }}
        >
          <CheckCircle2 className="mr-1 h-4 w-4" />
          确认支付
        </Button>
      )}

      {status === "pending_accept" && (
        <>
          {isConsumer && (
            <Button
              variant="outline"
              className="border-border/60"
              onClick={() => {
                if (!currentUserId) {
                  notifyInfo("请先登录")
                  return
                }
                runAction("订单已取消", cancelPreAccept(orderId))
              }}
            >
              <XCircle className="mr-1 h-4 w-4" />
              取消订单
            </Button>
          )}
          {isPlayer &&
            (order?.shopId && dispatchMode !== "manual" ? (
              <Button disabled>
                <Clock className="mr-1 h-4 w-4" />
                {dispatchMode === "auto" ? "系统派单中" : "读取派单规则..."}
              </Button>
            ) : (
              <Button
                onClick={() => {
                  if (!currentUserId) {
                    notifyInfo("请先登录")
                    return
                  }
                  runAction("已接单", acceptOrder(orderId))
                }}
              >
                <CheckCircle2 className="mr-1 h-4 w-4" />
                接单
              </Button>
            ))}
        </>
      )}

      {(status === "in_progress" || status === "pending_close") && resolvedChatTargetId && (
        <Button variant="outline" className="border-border/60" asChild>
          <Link href={`/chat/${resolvedChatTargetId}?orderId=${orderId}`}>
            <MessageSquare className="mr-1 h-4 w-4" />
            聊天
          </Link>
        </Button>
      )}

      {status === "in_progress" && (
        <>
          {isPlayer && (
            <Button
              onClick={() => {
                if (!currentUserId) {
                  notifyInfo("请先登录")
                  return
                }

                runAction("已发起结单", requestClose(orderId))
              }}
            >
              发起结单
            </Button>
          )}
          {isParticipant && (
            <Button variant="destructive" asChild>
              <Link href={`/dispute/${orderId}`}>
                <AlertTriangle className="mr-1 h-4 w-4" />
                发起争议
              </Link>
            </Button>
          )}
        </>
      )}

      {status === "pending_close" && (
        <>
          {isConsumer && (
            <Button
              onClick={() => {
                if (!currentUserId) {
                  notifyInfo("请先登录")
                  return
                }
                runAction("已确认结单", confirmClose(orderId))
              }}
            >
              确认结单
            </Button>
          )}
          {isParticipant && (
            <Button variant="destructive" asChild>
              <Link href={`/dispute/${orderId}`}>
                <AlertTriangle className="mr-1 h-4 w-4" />
                发起争议
              </Link>
            </Button>
          )}
        </>
      )}

      {status === "pending_review" && isParticipant && (
        <Button asChild>
          <Link href={`/review/${orderId}`}>
            <Star className="mr-1 h-4 w-4" />
            评价
          </Link>
        </Button>
      )}

      {status === "completed" && (
        <Button variant="outline" className="border-border/60" asChild>
          <Link href={`/order/new?serviceId=${serviceId}`}>
            <RefreshCw className="mr-1 h-4 w-4" />
            再来一单
          </Link>
        </Button>
      )}

      {status === "cancelled" && (
        <Button variant="outline" className="border-border/60" asChild>
          <Link href={`/order/new?serviceId=${serviceId}`}>
            <RefreshCw className="mr-1 h-4 w-4" />
            再来一单
          </Link>
        </Button>
      )}

      {status === "disputed" && isParticipant && (
        <Button variant="outline" className="border-border/60" asChild>
          <Link href={`/dispute/${orderId}`}>查看详情</Link>
        </Button>
      )}
    </div>
  )
}