# Stage 1: Build the Go binary
FROM golang:alpine AS builder

# Install build dependencies
RUN apk add --no-cache git

WORKDIR /app

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

# Copy the rest of the application source code
COPY . .

# Compile a static Go binary optimized for linux
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-w -s" -o main .

# Stage 2: Create a minimal production container
FROM alpine:3.19

WORKDIR /app

# Install timezone data and CA certificates (essential for Midtrans/Fonnte HTTPS)
RUN apk --no-cache add ca-certificates tzdata
ENV TZ=Asia/Jakarta

# Copy the compiled binary from the builder stage
COPY --from=builder /app/main .

# Expose port 7860 (Hugging Face Spaces requirement)
ENV PORT=7860
EXPOSE 7860

# Run the Go binary
CMD ["./main"]