import type { SearchCatalogData } from "@/lib/search/search-catalog"
import { searchCatalog } from "@/lib/search/search-catalog"
import { describe, expect, it } from "vitest"

const createdAt = "2025-01-01T00:00:00.000Z"

const players: SearchCatalogData["players"] = [
  {
    id: "1006",
    user: {
      id: "2006",
      username: "u1006",
      nickname: "Winter",
      avatar: "/avatars/u1006.png",
      role: "player",
      createdAt,
    },
    rating: 4.8,
    totalOrders: 120,
    completionRate: 0.98,
    status: "available",
    games: ["王者荣耀"],
    services: [
      {
        id: "s-1006-wzry",
        playerId: "1006",
        gameId: "g-wzry",
        gameName: "王者荣耀",
        title: "王者荣耀陪练",
        description: "",
        price: 30,
        unit: "局",
        availability: ["weekends"],
      },
    ],
    shopId: "3002",
    tags: ["moba"],
  },
  {
    id: "1007",
    user: {
      id: "2007",
      username: "u1007",
      nickname: "u7",
      avatar: "/avatars/u1007.png",
      role: "player",
      createdAt,
    },
    rating: 4.0,
    totalOrders: 20,
    completionRate: 0.9,
    status: "busy",
    games: ["英雄联盟"],
    services: [
      {
        id: "s-1007-lol",
        playerId: "1007",
        gameId: "g-lol",
        gameName: "英雄联盟",
        title: "英雄联盟陪练",
        description: "",
        price: 18,
        unit: "局",
        availability: ["weekdays"],
      },
    ],
    shopId: "3003",
    tags: [],
  },
  {
    id: "1008",
    user: {
      id: "2008",
      username: "u1008",
      nickname: "Ace",
      avatar: "/avatars/u1008.png",
      role: "player",
      createdAt,
    },
    rating: 4.7,
    totalOrders: 80,
    completionRate: 0.97,
    status: "available",
    games: ["CS2"],
    services: [
      {
        id: "s-1008-cs2",
        playerId: "1008",
        gameId: "g-cs2",
        gameName: "CS2",
        title: "CS2代练",
        description: "",
        price: 10,
        unit: "局",
        availability: ["weekends"],
      },
    ],
    shopId: "3001",
    tags: ["fps"],
  },
  {
    id: "1009",
    user: {
      id: "2009",
      username: "u1009",
      nickname: "u9",
      avatar: "/avatars/u1009.png",
      role: "player",
      createdAt,
    },
    rating: 3.5,
    totalOrders: 5,
    completionRate: 0.85,
    status: "offline",
    games: ["英雄联盟"],
    services: [
      {
        id: "s-1009-lol",
        playerId: "1009",
        gameId: "g-lol",
        gameName: "英雄联盟",
        title: "英雄联盟陪练",
        description: "",
        price: 12,
        unit: "局",
        availability: ["weekends"],
      },
    ],
    shopId: "3003",
    tags: [],
  },
]

const shops: SearchCatalogData["shops"] = [
  {
    id: "3001",
    owner: {
      id: "4001",
      username: "owner3001",
      nickname: "Owner 3001",
      avatar: "/avatars/owner3001.png",
      role: "owner",
      createdAt,
    },
    name: "CS2 Hub",
    description: "",
    rating: 4.6,
    totalOrders: 300,
    playerCount: 1,
    commissionType: "fixed",
    commissionValue: 0,
    allowMultiShop: false,
    allowIndependentOrders: true,
    dispatchMode: "manual",
    announcements: [],
    templateConfig: { sections: [] },
  },
  {
    id: "3002",
    owner: {
      id: "4002",
      username: "owner3002",
      nickname: "Owner 3002",
      avatar: "/avatars/owner3002.png",
      role: "owner",
      createdAt,
    },
    name: "Yuki Studio",
    description: "",
    rating: 4.2,
    totalOrders: 50,
    playerCount: 1,
    commissionType: "fixed",
    commissionValue: 0,
    allowMultiShop: false,
    allowIndependentOrders: true,
    dispatchMode: "manual",
    announcements: [],
    templateConfig: { sections: [] },
  },
  {
    id: "3003",
    owner: {
      id: "4003",
      username: "owner3003",
      nickname: "Owner 3003",
      avatar: "/avatars/owner3003.png",
      role: "owner",
      createdAt,
    },
    name: "Quiet Shop",
    description: "",
    rating: 3.8,
    totalOrders: 10,
    playerCount: 2,
    commissionType: "fixed",
    commissionValue: 0,
    allowMultiShop: false,
    allowIndependentOrders: true,
    dispatchMode: "manual",
    announcements: [],
    templateConfig: { sections: [] },
  },
]

const services: SearchCatalogData["services"] = players.flatMap((p) => p.services)

const data: SearchCatalogData = {
  players,
  shops,
  services,
}

describe("searchCatalog", () => {
  describe("q matching (case-insensitive)", () => {
    it("matches player nickname", () => {
      const res = searchCatalog({ q: "winter", limit: 50 }, data)
      const playerItems = res.items.filter((i) => i.type === "player")
      expect(playerItems.some((i) => i.type === "player" && i.player.id === "1006")).toBe(true)
    })

    it("matches player nickname case-insensitively", () => {
      const res = searchCatalog({ q: "WINTER", limit: 50 }, data)
      const playerItems = res.items.filter((i) => i.type === "player")
      expect(playerItems.some((i) => i.type === "player" && i.player.id === "1006")).toBe(true)
    })

    it("matches shop name", () => {
      const res = searchCatalog({ q: "yuki", limit: 50 }, data)
      const shopItems = res.items.filter((i) => i.type === "shop")
      expect(shopItems.some((i) => i.type === "shop" && i.shop.id === "3002")).toBe(true)
    })

    it("matches player game name", () => {
      const res = searchCatalog({ q: "cs2", limit: 50 }, data)
      const playerItems = res.items.filter((i) => i.type === "player")
      // 1008 has CS2 in games
      expect(playerItems.some((i) => i.type === "player" && i.player.id === "1008")).toBe(true)
    })

    it("matches shop derived games", () => {
      const res = searchCatalog({ q: "cs2", limit: 50 }, data)
      const shopItems = res.items.filter((i) => i.type === "shop")
      expect(shopItems.some((i) => i.type === "shop" && i.shop.id === "3001")).toBe(true)
    })

    it("returns all items when q is empty", () => {
      const res = searchCatalog({ limit: 50 }, data)
      expect(res.meta.total).toBe(players.length + shops.length)
    })
  })

  describe("selectedGames ANY-match", () => {
    it("filters players by game", () => {
      const res = searchCatalog({ selectedGames: ["CS2"], limit: 50 }, data)
      const playerItems = res.items.filter((i) => i.type === "player")
      expect(playerItems.every((i) => i.type === "player" && i.player.games.includes("CS2"))).toBe(
        true,
      )
      expect(playerItems.length).toBeGreaterThan(0)
    })

    it("filters shops by derived games from services", () => {
      const res = searchCatalog({ selectedGames: ["CS2"], limit: 50 }, data)
      const shopItems = res.items.filter((i) => i.type === "shop")
      expect(shopItems.some((i) => i.type === "shop" && i.shop.id === "3001")).toBe(true)
    })

    it("uses ANY-match (OR) for multiple games", () => {
      const res = searchCatalog({ selectedGames: ["CS2", "王者荣耀"], limit: 50 }, data)
      // Should include players with either game
      expect(res.meta.total).toBeGreaterThan(0)
      const playerItems = res.items.filter((i) => i.type === "player")
      for (const item of playerItems) {
        if (item.type === "player") {
          expect(item.player.games.includes("CS2") || item.player.games.includes("王者荣耀")).toBe(
            true,
          )
        }
      }
    })
  })

  describe("onlyOnline semantics", () => {
    it("filters players by status === available", () => {
      const res = searchCatalog({ onlyOnline: true, limit: 50 }, data)
      const playerItems = res.items.filter((i) => i.type === "player")
      for (const item of playerItems) {
        if (item.type === "player") {
          expect(item.player.status).toBe("available")
        }
      }
      // u7 is busy, u9 is offline — they should be excluded
      expect(playerItems.some((i) => i.type === "player" && i.player.id === "1007")).toBe(false)
      expect(playerItems.some((i) => i.type === "player" && i.player.id === "1009")).toBe(false)
    })

    it("filters shops by hasAvailable (any player available)", () => {
      const res = searchCatalog({ onlyOnline: true, limit: 50 }, data)
      const shopItems = res.items.filter((i) => i.type === "shop")
      for (const item of shopItems) {
        if (item.type === "shop") {
          expect(item.hasAvailable).toBe(true)
        }
      }
      expect(shopItems.some((i) => i.type === "shop" && i.shop.id === "3003")).toBe(false)
      expect(shopItems.some((i) => i.type === "shop" && i.shop.id === "3001")).toBe(true)
    })
  })

  describe("price min/max parsing", () => {
    it("filters by min price", () => {
      const res = searchCatalog({ min: "25", limit: 50 }, data)
      for (const item of res.items) {
        expect(item.minPrice).toBeGreaterThanOrEqual(25)
      }
    })

    it("filters by max price", () => {
      const res = searchCatalog({ max: "20", limit: 50 }, data)
      for (const item of res.items) {
        expect(item.minPrice).toBeLessThanOrEqual(20)
      }
    })

    it("NaN min does not filter (min='abc' → minP=NaN)", () => {
      const resAll = searchCatalog({ limit: 50 }, data)
      const resNaN = searchCatalog({ min: "abc", limit: 50 }, data)
      // NaN comparison: item.minPrice < NaN is always false, so nothing is excluded by min
      // But items with minPrice < 0 would pass too — effectively no min filter
      expect(resNaN.meta.total).toBe(resAll.meta.total)
    })

    it("NaN max does not filter (max='abc' → maxP=NaN)", () => {
      const resAll = searchCatalog({ limit: 50 }, data)
      const resNaN = searchCatalog({ max: "abc", limit: 50 }, data)
      // max is truthy ("abc") so the max filter runs, but item.minPrice > NaN is always false
      expect(resNaN.meta.total).toBe(resAll.meta.total)
    })
  })

  describe("sort options", () => {
    it("sorts by rating descending", () => {
      const res = searchCatalog({ sort: "rating", limit: 50 }, data)
      for (let i = 1; i < res.items.length; i++) {
        expect(res.items[i - 1].rating).toBeGreaterThanOrEqual(res.items[i].rating)
      }
    })

    it("sorts by orders descending", () => {
      const res = searchCatalog({ sort: "orders", limit: 50 }, data)
      for (let i = 1; i < res.items.length; i++) {
        expect(res.items[i - 1].orders).toBeGreaterThanOrEqual(res.items[i].orders)
      }
    })

    it("sorts by price ascending", () => {
      const res = searchCatalog({ sort: "price_asc", limit: 50 }, data)
      for (let i = 1; i < res.items.length; i++) {
        expect(res.items[i - 1].minPrice).toBeLessThanOrEqual(res.items[i].minPrice)
      }
    })

    it("sorts by price descending", () => {
      const res = searchCatalog({ sort: "price_desc", limit: 50 }, data)
      for (let i = 1; i < res.items.length; i++) {
        expect(res.items[i - 1].minPrice).toBeGreaterThanOrEqual(res.items[i].minPrice)
      }
    })

    it("sorts by composite formula descending", () => {
      const res = searchCatalog({ sort: "composite", limit: 50 }, data)
      const scores = res.items.map((i) => i.rating * Math.log10(i.orders + 1))
      for (let i = 1; i < scores.length; i++) {
        expect(scores[i - 1]).toBeGreaterThanOrEqual(scores[i])
      }
    })

    it("uses stable tie-breaker by insertion order", () => {
      // Create data with identical ratings to test tie-breaking
      const res = searchCatalog({ sort: "rating", limit: 50 }, data)
      // Items with same rating should preserve insertion order (players before shops)
      const sameRating = res.items.filter((i) => i.rating === res.items[0].rating)
      if (sameRating.length > 1) {
        // They should be in original insertion order
        expect(sameRating.length).toBeGreaterThan(0)
      }
    })
  })

  describe("pagination offset/limit", () => {
    it("returns correct meta", () => {
      const res = searchCatalog({ limit: 2, offset: 0 }, data)
      expect(res.meta.limit).toBe(2)
      expect(res.meta.offset).toBe(0)
      expect(res.items.length).toBe(2)
      expect(res.meta.total).toBe(players.length + shops.length)
    })

    it("offset skips items", () => {
      const all = searchCatalog({ limit: 50 }, data)
      const page2 = searchCatalog({ limit: 2, offset: 2 }, data)
      expect(page2.items[0]).toEqual(all.items[2])
      expect(page2.items[1]).toEqual(all.items[3])
    })

    it("offset beyond total returns empty items", () => {
      const res = searchCatalog({ limit: 10, offset: 100 }, data)
      expect(res.items.length).toBe(0)
      expect(res.meta.total).toBeGreaterThan(0)
    })
  })
})