# 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）
FROM alpine:3.19

RUN apk add --no-cache ca-certificates tzdata ffmpeg python3 py3-pip \
    gcc musl-dev python3-dev linux-headers

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

# 预装 PySceneDetect（opencv-headless 无需 GUI 依赖）
# 使用 --break-system-packages 兼容 PEP 668 限制的 pip 版本
RUN pip3 install --break-system-packages scenedetect[opencv-headless,ffmpeg]

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

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"]