const express = require("express")
const authMiddleware = require("../../middleware/authMiddleware")
const { voteDeal, getVotes } = require("../../services/deal/dealService")
const { z } = require("zod")

const router = express.Router()

// Şema tanımı
const voteSchema = z.object({
  dealId: z.number().int().positive(),
  voteType: z.enum(["UP", "DOWN"]),
})

// Oy verme
router.post("/", authMiddleware, async (req, res) => {
  const parsed = voteSchema.safeParse(req.body)
  if (!parsed.success) {
    return res.status(400).json({
      error: "Geçersiz veri",
      details: parsed.error.errors.map((e) => e.message),
    })
  }

  const { dealId, voteType } = parsed.data
  const userId = req.user.userId

  try {
    const score = await voteDeal(dealId, userId, voteType)
    res.json({ score })
  } catch (err) {
    console.error(err)
    res.status(500).json({ error: "Sunucu hatası" })
  }
})

// Belirli deal için oyları çek
router.get("/:dealId", async (req, res) => {
  try {
    const dealId = Number(req.params.dealId)
    if (isNaN(dealId) || dealId <= 0)
      return res.status(400).json({ error: "Geçersiz dealId" })

    const data = await getVotes(dealId)
    res.json(data)
  } catch (err) {
    console.error(err)
    res.status(500).json({ error: "Sunucu hatası" })
  }
})

module.exports = router