# syntax=docker/dockerfile:1.7

# ---- base ----
FROM node:24.12.0-slim AS base
WORKDIR /app

# Pin Yarn classic (v1) exactly
RUN corepack enable \
  && corepack prepare yarn@1.22.22 --activate

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# ---- deps ----
FROM base AS deps

# If you ever add native deps, you may need build tools.
# Kept minimal for faster builds.

COPY package.json yarn.lock ./

# Leverage BuildKit cache for Yarn (optional but nice when enabled)
RUN --mount=type=cache,target=/usr/local/share/.cache/yarn \
    yarn install --frozen-lockfile

# ---- builder ----
FROM base AS builder
ENV NODE_ENV=production

COPY --from=deps /app/node_modules ./node_modules
COPY . .

RUN yarn build

# ---- runner (prod) ----
FROM node:24.12.0-slim AS runner
WORKDIR /app

RUN corepack enable \
  && corepack prepare yarn@1.22.22 --activate

ENV NODE_ENV=production
ENV NEXT_TELEMETRY_DISABLED=1

# Use the built-in non-root user that comes with the official Node image
USER node

# Only copy what we need at runtime
COPY --chown=node:node package.json yarn.lock ./
COPY --chown=node:node --from=deps /app/node_modules ./node_modules
COPY --chown=node:node --from=builder /app/public ./public
COPY --chown=node:node --from=builder /app/.next ./.next

EXPOSE 3000

CMD ["yarn", "start"]

# ---- dev ----
FROM base AS dev
ENV NODE_ENV=development

COPY package.json yarn.lock ./

RUN --mount=type=cache,target=/usr/local/share/.cache/yarn \
    yarn install --frozen-lockfile

# In dev we'll mount the whole repo as a volume. Still copy for image completeness.
COPY . .

EXPOSE 3000
CMD ["yarn", "dev", "-H", "0.0.0.0", "-p", "3000"]