FROM --platform=$BUILDPLATFORM node:22-alpine AS frontend-builder

WORKDIR /app

COPY app/package.json app/yarn.lock* app/package-lock.json* ./

RUN npm install

COPY app .

ENV NEXT_PUBLIC_API_URL=""

RUN npm run build

FROM --platform=$BUILDPLATFORM golang:1.25-alpine AS backend-builder

WORKDIR /app

RUN apk add --no-cache git

COPY go.mod go.sum ./

RUN go mod download

COPY . .

ARG TARGETOS TARGETARCH

RUN CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -o server cmd/main.go

FROM alpine:3.23.0

WORKDIR /app

RUN apk --no-cache add ca-certificates

COPY --from=backend-builder /app/server .

COPY --from=frontend-builder /app/out ./public

EXPOSE 8081

CMD ["./server"]