const fs = require("fs")
const { uploadImage } = require("./uploadImage.service")
const { makeWebp } = require("../utils/processImage")
const { validateImage } = require("../utils/validateImage")

const userDB = require("../db/user.db")
const { setUserPublicInRedis } = require("./redis/userPublicCache.service")

async function updateUserAvatar(userId, file) {
  if (!file) {
    throw new Error("No file uploaded")
  }

  validateImage({
    mimetype: file.mimetype,
    size: file.size,
  })

  const buffer = fs.readFileSync(file.path)
  const webpBuffer = await makeWebp(buffer, { quality: 80 })

  const imageUrl = await uploadImage({
    path: `avatars/${userId}_${Date.now()}.webp`,
    fileBuffer: webpBuffer,
    contentType: "image/webp",
  })

  fs.unlinkSync(file.path)

  const updated = await updateAvatarUrl(userId, imageUrl)
  await setUserPublicInRedis(updated, { ttlSeconds: 60 * 60 })
  return updated
}


async function updateAvatarUrl(userId, imageUrl) {
  return userDB.updateUser(
    { id: userId },
    { avatarUrl: imageUrl },
    {
      select: {
        id: true,
        username: true,
        avatarUrl: true,
        userBadges: {
          orderBy: { earnedAt: "desc" },
          select: {
            earnedAt: true,
            badge: { select: { id: true, name: true, iconUrl: true, description: true } },
          },
        },
      },
    }
  )
}
module.exports = { updateUserAvatar }