import { NextRequest, NextResponse } from "next/server"
import { config } from "dotenv"
import { resolve } from "path"
import { ObjectId } from "mongodb"
import { getCollection } from "@/lib/db/mongo"

if (typeof process !== "undefined" && !process.env.MONGODB_URI) {
  config({ path: resolve(process.cwd(), ".env.local") })
}

const now = () => new Date().toISOString()

async function ensureDefaultGuilds() {
  const coll = await getCollection("guilds")
  const defaults = [
    { name: "玩值电竞", description: "玩值电竞官方公会", tags: ["官方", "电竞"], status: "active" as const },
    { name: "丸子公会", description: "丸子公会，星探与主播培养", tags: ["公会", "主播"], status: "active" as const },
  ]
  for (const d of defaults) {
    const exists = await coll.findOne({ name: d.name })
    if (!exists) {
      await coll.insertOne({
        name: d.name,
        logo: "",
        coverImage: "",
        description: d.description,
        ownerId: "",
        memberCount: 0,
        maxMembers: 5000,
        level: 10,
        totalIncome: 0,
        commissionRate: 0.1,
        tags: d.tags,
        games: ["魔兽世界", "英雄联盟", "王者荣耀"],
        requirements: "",
        benefits: ["流量扶持", "课程分成"],
        status: d.status,
        createdAt: now(),
        updatedAt: now(),
      })
    }
  }
}

export async function GET() {
  try {
    await ensureDefaultGuilds()
    const coll = await getCollection("guilds")
    const streamersColl = await getCollection("streamers")
    const list = await coll.find({}).sort({ updatedAt: -1, createdAt: -1 }).limit(200).toArray()
    const data = await Promise.all(
      list.map(async (doc: Record<string, unknown> & { _id: ObjectId }) => {
        const id = doc._id.toString()
        const streamerCount = await streamersColl.countDocuments({ guildId: id })
        return {
          ...doc,
          id,
          streamerCount: streamerCount ?? 0,
          memberCount: doc.memberCount ?? 0,
          maxMembers: doc.maxMembers ?? 5000,
          level: doc.level ?? 0,
          totalIncome: doc.totalIncome ?? 0,
          commissionRate: doc.commissionRate ?? 0.1,
        }
      }),
    )
    return NextResponse.json({ success: true, data })
  } catch (e) {
    console.error("GET /api/admin/guilds error:", e)
    return NextResponse.json({ success: false, error: String(e) }, { status: 500 })
  }
}

export async function POST(request: NextRequest) {
  try {
    const body = await request.json()
    const coll = await getCollection("guilds")
    const doc = {
      name: body.name ?? "未命名公会",
      logo: body.logo ?? "",
      coverImage: body.coverImage ?? "",
      description: body.description ?? "",
      ownerId: body.ownerId ?? "",
      memberCount: 0,
      maxMembers: body.maxMembers ?? 5000,
      level: body.level ?? 1,
      totalIncome: 0,
      commissionRate: typeof body.commissionRate === "number" ? body.commissionRate : 0.1,
      tags: Array.isArray(body.tags) ? body.tags : [],
      games: Array.isArray(body.games) ? body.games : [],
      requirements: body.requirements ?? "",
      benefits: Array.isArray(body.benefits) ? body.benefits : [],
      status: body.status ?? "active",
      createdAt: now(),
      updatedAt: now(),
    }
    const r = await coll.insertOne(doc)
    return NextResponse.json({ success: true, data: { id: r.insertedId.toString() } })
  } catch (e) {
    console.error("POST /api/admin/guilds error:", e)
    return NextResponse.json({ success: false, error: String(e) }, { status: 500 })
  }
}