# syntax=docker/dockerfile:1

FROM --platform=$BUILDPLATFORM oven/bun:1.3.2-slim AS build-base
WORKDIR /app

FROM build-base AS deps
COPY package.json bun.lock ./
# 使用 BuildKit 缓存挂载加速依赖安装
RUN --mount=type=cache,target=/root/.bun/install/cache \
    bun install --frozen-lockfile

FROM deps AS build
COPY . .

# 接收构建参数
ARG APP_VERSION=dev

# 设置为环境变量供 Next.js 使用
ENV NEXT_TELEMETRY_DISABLED=1
ENV NEXT_PUBLIC_APP_VERSION=$APP_VERSION

# 构建时需要的环境变量 (避免数据库初始化错误)
# 这些是占位符,实际运行时会被真实值覆盖
ENV DSN="postgres://placeholder:placeholder@localhost:5432/placeholder"
ENV REDIS_URL="redis://localhost:6379"

# 使用 BuildKit 缓存加速 Next.js 构建
RUN --mount=type=cache,target=/app/.next/cache \
    bun run build

FROM node:22-slim AS runner
ENV NODE_ENV=production
ENV PORT=3000
ENV HOST=0.0.0.0
WORKDIR /app

# 安装 PostgreSQL 18 客户端工具（用于数据库备份/恢复功能）和 curl（用于健康检查）
# 需要使用官方 PostgreSQL APT 仓库以获取最新版本
# 使用 BuildKit 缓存挂载加速 APT 安装
RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
    --mount=type=cache,target=/var/lib/apt/lists,sharing=locked \
    apt-get update && \
    apt-get install -y gnupg curl ca-certificates && \
    curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor -o /usr/share/keyrings/postgresql-archive-keyring.gpg && \
    echo "deb [signed-by=/usr/share/keyrings/postgresql-archive-keyring.gpg] http://apt.postgresql.org/pub/repos/apt bookworm-pgdg main" > /etc/apt/sources.list.d/pgdg.list && \
    apt-get update && \
    apt-get install -y postgresql-client-18

COPY --from=build --chown=node:node /app/public ./public
COPY --from=build --chown=node:node /app/drizzle ./drizzle
COPY --from=build --chown=node:node /app/messages ./messages
COPY --from=build --chown=node:node /app/.next/standalone ./
# Server Actions live inside .next/server; copy it or Next.js cannot resolve action IDs.
COPY --from=build --chown=node:node /app/.next/server ./.next/server
COPY --from=build --chown=node:node /app/.next/static ./.next/static

USER node
EXPOSE 3000

CMD ["node", "server.js"]