# 阶段1: 构建
FROM golang:alpine AS builder

RUN apk add --no-cache git ca-certificates tzdata

ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

ENV GO111MODULE=on
ENV GOPROXY=https://goproxy.cn,direct
ENV CGO_ENABLED=0
ENV GOTOOLCHAIN=auto
WORKDIR /build

COPY . .

RUN go mod download && go mod tidy

RUN go build -ldflags="-s -w" -o main ./main.go


# 阶段2: 运行时（预装 FFmpeg + Python3 + PySceneDetect + Node.js + HyperFrames）
FROM alpine:3.21

# nodejs/npm 在 community 仓库，需启用
# 使用阿里云镜像加速
RUN sed -i 's|dl-cdn.alpinelinux.org|mirrors.aliyun.com|g' /etc/apk/repositories \
    && echo "https://mirrors.aliyun.com/alpine/v3.21/community" >> /etc/apk/repositories \
    && apk add --no-cache ca-certificates tzdata ffmpeg python3 py3-pip nodejs npm \
    gcc musl-dev python3-dev linux-headers

ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

# opencv-python 无 Alpine musllinux 预编译 wheel，改用 apk 的 py3-opencv
RUN apk add --no-cache py3-opencv

# 预装 PySceneDetect（--no-deps: scenedetect 强依赖 opencv-python 会触发源码编译）
# opencv 已由 apk 的 py3-opencv 提供，无需 pip 重复安装
RUN pip3 install --break-system-packages --no-deps -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com scenedetect \
    && pip3 install --break-system-packages -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com click platformdirs tqdm

# 验证 PySceneDetect 安装
RUN python3 -c "import scenedetect; print(f'scenedetect {scenedetect.__version__} installed')"

# 预装 HyperFrames（全局安装）
# 使用 npmmirror 镜像加速
RUN npm install -g hyperframes --registry=https://registry.npmmirror.com/ --ignore-scripts

# HyperFrames 渲染需要 Chromium/Chrome
# 安装 Chromium（提供系统级共享库依赖）和中文字体
RUN apk add --no-cache chromium font-noto-cjk fontconfig \
    && fc-cache -f
# 下载 HyperFrames 需要的 headless-shell 浏览器
RUN npx hyperframes browser ensure

WORKDIR /app

# 复制二进制和运行时必需的文件
COPY --from=builder /build/main .
COPY --from=builder /build/config.yml .
COPY --from=builder /build/scripts ./scripts
EXPOSE 3010

CMD ["./main"]