# Backend image: FastAPI + APScheduler + Alembic + scrapers.
#
# Keeps the image small (python:3.12-slim) and the layer cache hot by copying
# only pyproject.toml first and installing deps before the source lands. The
# same image serves both the API (uvicorn) and the scheduler
# (``python -m app.sync.cli scheduler``) — the docker-compose ``command:`` key
# selects which entrypoint runs.
FROM python:3.12-slim

# Build-time / runtime deps for asyncmy (compiled C extension) + httpx +
# cryptography.``libmariadb`` is what asyncmy links against on Debian.
# Playwright 系统依赖:Chromium headless 需要的共享库(libnss3/libatk/libx11
# 等,playwright install-deps 的等价精简集,2026-08-21 部署阻塞点#1)。
# 国内构建加速(阿里云 ECS 上 apt/pip 直连官方源慢或超时;对本地构建同样
# 可用,镜像源无地域限制)。bookworm/trixie 的源都在 debian.sources 里;
# 文件不存在(更老基础镜像)则跳过,不影响构建。
RUN sed -i 's|deb.debian.org|mirrors.aliyun.com|g' /etc/apt/sources.list.d/debian.sources 2>/dev/null || true

RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        build-essential \
        libmariadb-dev \
        libffi-dev \
        # Chromium headless 依赖(playwright 官方 install-deps 清单)
        libnss3 \
        libnspr4 \
        libatk1.0-0 \
        libatk-bridge2.0-0 \
        libcups2 \
        libdrm2 \
        libxkbcommon0 \
        libxcomposite1 \
        libxdamage1 \
        libxfixes3 \
        libxrandr2 \
        libgbm1 \
        libasound2 \
        libpango-1.0-0 \
        libcairo2 \
        libatspi2.0-0 \
        libx11-6 \
        libxcb1 \
        libxext6 \
        libexpat1 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Install dependencies first (cache-friendly: only re-installs when
# pyproject.toml changes). The project itself is installed in editable-like
# mode by copying the package in afterwards.
COPY pyproject.toml ./
COPY app/__init__.py app/__init__.py
COPY app/ ./app/
# scripts/ — 调度器的页面抓取入口(scripts/scrape_via_page.py 与
# full_sync_all.sh 由 scheduler._page_subprocess 以 cwd=/app 调起,
# 2026-08-21 部署阻塞点#2:镜像里必须带上)。
COPY scripts/ ./scripts/
# alembic.ini + migrations/ — 容器内可跑 `alembic upgrade head`(DB_URL
# 环境变量已由 compose 注入;entrypoint 不自动迁移,由运维手动执行,
# 见 docs/DEPLOY.md「数据库迁移」)。alembic.ini 的 script_location 用
# %(here)s 相对 ini 自身,落在 /app/migrations 正好对上。
COPY alembic.ini ./
COPY migrations/ ./migrations/

# Install the package + dev dependencies (the dev extras include aiosqlite +
# pytest, which are tiny and convenient for in-container smoke checks). Pin
# the install to the local source so the package import path resolves.
# 国内构建加速:pip 走阿里云源;Chromium 二进制(~160MB)走 npmmirror,
# 否则 ECS 上从 playwright CDN 下载很慢。
ENV PLAYWRIGHT_DOWNLOAD_HOST=https://cdn.npmmirror.com/binaries/playwright

RUN pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ -e ".[dev]" \
    && playwright install chromium --with-deps

# Default command — overridden per-service in docker-compose. The API service
# runs uvicorn; the scheduler service runs the CLI.
CMD ["uvicorn", "app.api.main:app", "--host", "0.0.0.0", "--port", "8000"]