# ─── Stage 1: Build backend ───
FROM golang:1.26-alpine AS backend-builder
RUN apk add --no-cache git ca-certificates
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /sub-store .

# ─── Stage 2: Runtime ───
FROM alpine:3.21
RUN apk add --no-cache ca-certificates tzdata
WORKDIR /app
COPY --from=backend-builder /sub-store /app/sub-store
COPY config/config.example.yaml /app/config/config.example.yaml

RUN mkdir -p /app/data

ENV TZ=Asia/Shanghai
ENV SUB_STORE_CONFIG=/app/config/config.yaml

EXPOSE 3000

ENTRYPOINT ["/app/sub-store"]
CMD ["serve", "-c", "/app/config/config.yaml"]