# ================================
# Stage 1: Build frontend
# ================================
FROM node:20-alpine AS frontend-builder

WORKDIR /app/web

# Copy package files
COPY web/package*.json ./

# Install dependencies
RUN npm ci

# Copy frontend source
COPY web/ ./

# Build frontend
RUN npm run build

# ================================
# Stage 2: Build backend
# ================================
FROM --platform=$BUILDPLATFORM golang:1.24-alpine AS backend-builder

ARG TARGETOS
ARG TARGETARCH
ARG VERSION=dev
ARG BUILD_TIME

WORKDIR /app

# Go mod files
COPY go.mod go.sum ./
RUN go env -w GOPROXY=https://goproxy.cn,direct && go mod download

# Copy backend source
COPY . .

# Copy frontend dist
COPY --from=frontend-builder /app/web/dist ./internal/static/dist

# Build Go binary
RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
    go build -ldflags="-s -w -X baihu/internal/constant.Version=${VERSION} -X 'baihu/internal/constant.BuildTime=${BUILD_TIME}'" \
    -o baihu .

# ================================
# Stage 3: Final image
# ================================
FROM debian:bookworm-slim

ENV TZ=Asia/Shanghai
ENV PATH="/opt/venv/bin:$PATH"

# 安装必要系统工具 + Node + Python
RUN sed -i 's@deb.debian.org@mirrors.tuna.tsinghua.edu.cn@g' /etc/apt/sources.list.d/debian.sources \
    && sed -i 's@security.debian.org@mirrors.tuna.tsinghua.edu.cn@g' /etc/apt/sources.list.d/debian.sources \
    && echo "${TZ}" > /etc/timezone \
    && ln -sf /usr/share/zoneinfo/${TZ} /etc/localtime \
    && apt-get update \
    && apt-get install -y --no-install-recommends \
         tzdata git gcc curl wget vim nodejs npm python3 python3-venv python3-pip \
    && python3 -m venv /opt/venv \
    && /opt/venv/bin/pip install --upgrade pip \
    && /opt/venv/bin/pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy Go binary
COPY --from=backend-builder /app/baihu .

# Copy frontend dist folder
COPY --from=frontend-builder /app/web/dist ./internal/static/dist

# Copy configs and entrypoint
COPY --from=backend-builder /app/configs ./configs
COPY docker-entrypoint.sh .
RUN chmod +x docker-entrypoint.sh

EXPOSE 8052

ENTRYPOINT ["./docker-entrypoint.sh"]