# syntax=docker/dockerfile:1.7
# Hugging Face Spaces optimized Dockerfile for grok2api
# HF Spaces: listens on 7860, persistent storage at /data

ARG NODE_VERSION=22
ARG GO_VERSION=1.26
ARG ALPINE_VERSION=3.23

# ---- Frontend build ----
FROM --platform=$BUILDPLATFORM node:${NODE_VERSION}-alpine AS frontend-builder

WORKDIR /src/frontend
RUN corepack enable

COPY frontend/package.json frontend/pnpm-lock.yaml ./
RUN --mount=type=cache,id=grok2api-pnpm,target=/pnpm/store \
    pnpm config set store-dir /pnpm/store && \
    pnpm fetch --frozen-lockfile

RUN --mount=type=cache,id=grok2api-pnpm,target=/pnpm/store \
    pnpm config set store-dir /pnpm/store && \
    pnpm install --offline --frozen-lockfile

COPY frontend/index.html frontend/vite.config.ts frontend/tsconfig.json frontend/tsconfig.app.json frontend/tsconfig.node.json ./
COPY frontend/public ./public
COPY frontend/src ./src
RUN --mount=type=cache,id=grok2api-tsc,target=/src/frontend/.cache,sharing=locked \
    pnpm build

# ---- Backend build ----
FROM --platform=$BUILDPLATFORM golang:${GO_VERSION}-alpine AS backend-builder

ARG TARGETOS
ARG TARGETARCH

WORKDIR /src/backend
RUN apk add --no-cache ca-certificates git

COPY backend/go.mod backend/go.sum ./
RUN --mount=type=cache,id=grok2api-go-mod,target=/go/pkg/mod,sharing=locked \
    go mod download

COPY backend/cmd ./cmd
COPY backend/internal ./internal
COPY backend/docs/docs.go ./docs/docs.go
RUN --mount=type=cache,id=grok2api-go-mod,target=/go/pkg/mod,sharing=locked \
    --mount=type=cache,id=grok2api-go-build,target=/root/.cache/go-build,sharing=locked \
    CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH \
    go build -buildvcs=false -trimpath -ldflags="-s -w" -o /out/grok2api ./cmd/grok2api

# ---- Runtime ----
FROM alpine:${ALPINE_VERSION}

ENV TZ=Asia/Shanghai

RUN apk add --no-cache ca-certificates tzdata && \
    mkdir -p /app/data /app/config

WORKDIR /app

COPY --from=backend-builder --chmod=0755 /out/grok2api /app/grok2api
COPY --from=frontend-builder /src/frontend/dist /app/frontend/dist
COPY VERSION /app/VERSION
COPY config.yaml /app/config.yaml

EXPOSE 7860

HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
    CMD wget -qO- http://127.0.0.1:7860/healthz >/dev/null || exit 1

ENTRYPOINT ["/app/grok2api", "--config", "/app/config.yaml", "--listen", "0.0.0.0:7860"]