ARG BASE_TAG=base
# ================================
# Stage 1: Build frontend
# ================================
FROM --platform=$BUILDPLATFORM node:20-alpine AS frontend-builder

WORKDIR /app/web

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

# Install dependencies using cache mount for npm
RUN --mount=type=cache,target=/root/.npm \
    npm ci

# Copy frontend source
COPY web/ ./

# Build frontend
RUN npm run build

# ================================
# Stage 0: Generate build info
# ================================
FROM alpine:3.19 AS build-info

ARG VERSION
ARG BUILD_TIME

# 生成版本信息文件，确保主服务和 Agent 使用相同的值（使用东八区时间）
RUN VERSION_VAL="${VERSION:-dev-$(TZ=Asia/Shanghai date '+%Y%m%d%H%M%S')}" && \
    BUILD_TIME_VAL="${BUILD_TIME:-$(TZ=Asia/Shanghai date '+%Y-%m-%d %H:%M:%S')}" && \
    mkdir -p /build-info && \
    echo "${VERSION_VAL}" > /build-info/version.txt && \
    echo "${BUILD_TIME_VAL}" > /build-info/build_time.txt

# ================================
# Stage 2: Build backend
# ================================
FROM --platform=$BUILDPLATFORM golang:1.26 AS backend-builder

ARG TARGETOS
ARG TARGETARCH


WORKDIR /app

# Copy build info
COPY --from=build-info /build-info /build-info

# Go mod files
COPY go.mod go.sum ./
RUN go env -w GOPROXY=https://goproxy.cn,direct
# Using Go build cache mount can significantly speed up consecutive builds
RUN --mount=type=cache,target=/go/pkg/mod \
    go mod download

# Copy backend source
COPY . .

# Copy frontend dist (needed for embedding)
COPY --from=frontend-builder /app/web/dist ./internal/static/dist

# Generate Swagger (Optional: better to commit docs and only copy, but if needed, install once)
# If openapi_docs exists, just use it, otherwise generate.
# Here we avoid go run @latest by copying it if you have it locally.
# If you don't, we install it once to the image.
RUN go install github.com/swaggo/swag/cmd/swag@latest
RUN swag init -g main.go -o ./openapi_docs

# Build Go binary using cache mounts for faster builds
RUN --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/root/.cache/go-build \
    VERSION_VAL=$(cat /build-info/version.txt) && \
    BUILD_TIME_VAL=$(cat /build-info/build_time.txt) && \
    CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
    go build -ldflags="-s -w -X github.com/engigu/taskpool/internal/constant.Version=${VERSION_VAL} -X 'github.com/engigu/taskpool/internal/constant.BuildTime=${BUILD_TIME_VAL}'" \
    -o taskpool .

# ================================
# Stage 3: Build Agent (all platforms)
# ================================
FROM --platform=$BUILDPLATFORM golang:1.26 AS agent-builder


WORKDIR /app

# Copy build info
COPY --from=build-info /build-info /build-info

# Using Go build cache mount
COPY go.mod go.sum ./
RUN --mount=type=cache,target=/go/pkg/mod \
    go mod download

# Copy source needed for agent
COPY internal/ ./internal/
COPY agent/ ./agent/

# Build agent for all platforms and package as tar.gz
WORKDIR /app/agent

# Build agent with parallel-aware logic or just cache mount
RUN --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/root/.cache/go-build \
    VERSION_VAL=$(cat /build-info/version.txt) && \
    BUILD_TIME_VAL=$(cat /build-info/build_time.txt) && \
    LDFLAGS="-s -w -X 'main.Version=${VERSION_VAL}' -X 'main.BuildTime=${BUILD_TIME_VAL}'" && \
    mkdir -p /opt/agent && \
    echo "${VERSION_VAL}" > /opt/agent/version.txt && \
    # Helper to build and compress
    build_agent() { \
        local os=$1; local arch=$2; local suffix=$3; \
        local tmpdir="build-$os-$arch"; \
        mkdir -p $tmpdir && cp config.example.ini $tmpdir/ && \
        CGO_ENABLED=0 GOOS=$os GOARCH=$arch go build -ldflags="${LDFLAGS}" -o $tmpdir/taskpool-agent$suffix . && \
        (cd $tmpdir && tar -czvf /opt/agent/taskpool-agent-$os-$arch.tar.gz taskpool-agent$suffix config.example.ini) && \
        rm -rf $tmpdir; \
    } ; \
    build_agent linux amd64 "" & pid1=$!; \
    build_agent linux arm64 "" & pid2=$!; \
    build_agent android arm64 "" & pid3=$!; \
    build_agent darwin amd64 "" & pid4=$!; \
    build_agent darwin arm64 "" & pid5=$!; \
    wait $pid1 && wait $pid2 && wait $pid3 && wait $pid4 && wait $pid5 && \
    echo "Agent build completed for all platforms"
# ================================
# Stage 4: Final image
# ================================
ARG BASE_TAG
FROM ghcr.io/engigu/taskpool:${BASE_TAG}

ENV TZ=Asia/Shanghai
ENV LANG=C.UTF-8
ENV LC_ALL=C.UTF-8
ENV MISE_DATA_DIR=/app/envs/mise
ENV MISE_CONFIG_DIR=/app/envs/mise
ENV PATH="/app/envs/mise/shims:/app/envs/mise/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 htop npm python3 python3-venv python3-pip \
#     && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

# Copy frontend assets to /www/taskpool (No embed in Docker)
COPY --from=frontend-builder /app/web/dist /www/taskpool

# Copy configs and entrypoint
COPY --from=backend-builder /app/configs ./configs
COPY --from=backend-builder /app/example ./example
COPY builtin/ /www/builtin
COPY docker/docker-entrypoint.sh .



# Copy agent binaries to /opt/agent
COPY --from=agent-builder /opt/agent /opt/agent

COPY docker/mise-hook.sh /etc/profile.d/mise-hook.sh

RUN chmod +x docker-entrypoint.sh \
    && cat /etc/profile.d/mise-hook.sh >> /etc/bash.bashrc \
    && echo "set encoding=utf-8" >> /etc/vim/vimrc \
    && ln -sf /app/taskpool /usr/local/bin/taskpool

ENV MISE_TRUSTED_CONFIG_PATHS=/app/data/scripts

EXPOSE 8052

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