FROM node:18-alpine AS base

# Install dependencies only when needed
FROM base AS deps
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat
WORKDIR /app

# Install dependencies based on the preferred package manager
COPY package.json package-lock.json* ./
RUN \
  if [ -f package-lock.json ]; then npm ci; \
  else echo "Lockfile not found." && exit 1; \
  fi


# Rebuild the source code only when needed
FROM base AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .

# build prisma client
RUN npx prisma generate

# build the app
RUN npm run build

# Production image, copy all the files and run next
FROM base AS runner
WORKDIR /app

ENV NODE_ENV production

RUN addgroup --system --gid 1001 nodejs
RUN adduser --system --uid 1001 nextjs

COPY --from=builder /app/public ./public

# Set the correct permission for prerender cache
RUN mkdir .next
RUN chown nextjs:nodejs .next

# Automatically leverage output traces to reduce image size
# https://nextjs.org/docs/advanced-features/output-file-tracing
COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static

RUN rm .env

USER nextjs

EXPOSE 3000

ENV PORT 3000
# set hostname to localhost
ENV HOSTNAME "0.0.0.0"

# server.js is created by next build from the standalone output
# https://nextjs.org/docs/pages/api-reference/next-config-js/output
CMD ["node", "server.js"]

import { unstable_noStore } from 'next/cache';
import z from 'zod';

const envSchema = z.object({
    DATABASE_URL: z.string().trim().url().min(1),
    STEAM_API_KEY: z.string().trim().length(32),
    STEAM_API_USER_URL: z.string().trim().url().min(1),
    STEAM_API_GAMESERVERS_URL: z.string().trim().url().min(1),
    GAME_SERVER_HOSTNAME: z.union([z.string().trim().min(1), z.string().ip({ version: "v4" }).min(1)]),
    GAME_SERVER_PORT: z.number().int().optional().default(27015),
    DISCORD_LINK: z.string().url().optional()
});

// enable runtime environment variables
// otherwise process.env is frozen during build
unstable_noStore();

const envServer = envSchema.safeParse(process.env);

if (!envServer.success) {
    console.error(envServer.error.issues);
    process.exit(1);
}

export const Config = envServer.data;

export function getEnvServer() {
  unstable_noStore()
  return envSchema.safeParse(process.env)
}