/**
 * Smart mock backend for authenticated E2E tours.
 * Handles auth endpoints so NextAuth can create valid sessions.
 * Run: node e2e/mock-backend.mjs
 */
import http from "node:http"

const MOCK_USER = {
  id: "user-001",
  email: "admin@gruener-daumen.de",
  role: "ADMIN",
  clubId: "club-001",
  clubName: "Grüner Daumen e.V.",
}

const server = http.createServer((req, res) => {
  // CORS headers
  res.setHeader("Access-Control-Allow-Origin", "*")
  res.setHeader(
    "Access-Control-Allow-Methods",
    "GET, POST, PUT, DELETE, OPTIONS"
  )
  res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization")

  if (req.method === "OPTIONS") {
    res.writeHead(204)
    res.end()
    return
  }

  const url = req.url?.split("?")[0] // strip query params

  // Login endpoint
  if (url === "/api/v1/auth/login" && req.method === "POST") {
    let body = ""
    req.on("data", (chunk) => (body += chunk))
    req.on("end", () => {
      console.log(`  ✓ POST /api/v1/auth/login — 200 OK`)
      res.writeHead(200, { "Content-Type": "application/json" })
      res.end(
        JSON.stringify({
          accessToken: "mock-jwt-token-for-e2e-testing-" + Date.now(),
          refreshToken: "mock-refresh-token-" + Date.now(),
          tokenType: "Bearer",
          expiresIn: 3600,
          member: MOCK_USER,
        })
      )
    })
    return
  }

  // Refresh endpoint
  if (url === "/api/v1/auth/refresh" && req.method === "POST") {
    let body = ""
    req.on("data", (chunk) => (body += chunk))
    req.on("end", () => {
      console.log(`  ✓ POST /api/v1/auth/refresh — 200 OK`)
      res.writeHead(200, { "Content-Type": "application/json" })
      res.end(
        JSON.stringify({
          accessToken: "mock-refreshed-token-" + Date.now(),
          refreshToken: "mock-refresh-token-new-" + Date.now(),
          tokenType: "Bearer",
          expiresIn: 3600,
        })
      )
    })
    return
  }

  // Catch-all — return 200 with empty success (frontend uses local mock data)
  console.log(`  → ${req.method} ${req.url} — 200 (catch-all)`)
  res.writeHead(200, { "Content-Type": "application/json" })
  res.end(JSON.stringify({ status: "ok", message: "mock backend catch-all" }))
})

server.listen(8080, () => {
  console.log("🟢 Smart mock backend running on http://localhost:8080")
  console.log("   Endpoints:")
  console.log("   • POST /api/v1/auth/login    → valid auth response")
  console.log("   • POST /api/v1/auth/refresh  → refreshed token")
  console.log("   • *                          → 200 catch-all")
})