FROM golang:1.22-alpine AS builder

WORKDIR /src

# Copy module files and download deps
COPY go.mod go.sum ./
RUN go mod download

# Copy source
COPY . .

# Build the web server
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /zplgfa-web ./cmd/web

# ─── Final stage ────────────────────────────────────────────────────────────
FROM alpine:3.20

RUN apk add --no-cache ca-certificates poppler-utils

COPY --from=builder /zplgfa-web /usr/local/bin/zplgfa-web

EXPOSE 4543

ENTRYPOINT ["/usr/local/bin/zplgfa-web"]