import { allow, deny } from "@/lib/decision"
import type { ApiDecision } from "@/lib/errors"
import { generateId } from "@/lib/id"
import type { Review } from "@/lib/types"
import { create } from "zustand"

interface SubmitReviewInput {
  orderId: string
  fromUserId: string
  rating: number
  content?: string
}

interface ReviewState {
  reviews: Review[]
  submitReview: (input: SubmitReviewInput) => ApiDecision
  getReviewsByOrder: (orderId: string) => Review[]
  hasUserReviewed: (orderId: string, userId: string) => boolean
}

export const useReviewStore = create<ReviewState>((set, get) => ({
  reviews: [],
  getReviewsByOrder: (orderId) => get().reviews.filter((review) => review.orderId === orderId),
  hasUserReviewed: (orderId, userId) =>
    get().reviews.some((review) => review.orderId === orderId && review.fromUserId === userId),
  submitReview: (input) => {
    if (!input.fromUserId) {
      return deny(401, "请先登录")
    }

    if (!Number.isFinite(input.rating) || input.rating < 1 || input.rating > 5) {
      return deny(400, "评分范围应为 1-5")
    }

    const exists = get().hasUserReviewed(input.orderId, input.fromUserId)
    if (exists) {
      return deny(400, "该订单已提交过评价")
    }

    const createdAt = new Date().toISOString()

    const review: Review = {
      id: generateId("rev"),
      orderId: input.orderId,
      fromUserId: input.fromUserId,
      fromUserName: "",
      rating: input.rating,
      content: input.content?.trim() ?? "",
      sealed: true,
      createdAt,
    }

    set((state) => ({ reviews: [...state.reviews, review] }))

    const orderReviews = get().getReviewsByOrder(input.orderId)
    if (orderReviews.length >= 2) {
      set((state) => ({
        reviews: state.reviews.map((item) =>
          item.orderId === input.orderId ? { ...item, sealed: false } : item,
        ),
      }))
    }

    return allow()
  },
}))