# syntax=docker/dockerfile:1

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

FROM build-base AS deps
COPY package.json ./
RUN bun install

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

# 运行阶段：使用 Node.js（避免 Bun 流式响应内存泄漏 Issue #18488）
FROM node:trixie-slim AS runner
ENV NODE_ENV=production
ENV PORT=3000
ENV HOST=0.0.0.0
WORKDIR /app

# 安装 PostgreSQL 客户端工具（用于数据库备份/恢复功能）和 curl（用于健康检查）
# node:trixie-slim 基于 Debian Trixie，需手动安装 postgresql-client
# 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 curl ca-certificates postgresql-client

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"]