# Build stage
FROM golang:1.24-alpine AS builder

WORKDIR /app

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

# Copy go mod and sum files from backend
COPY backend/go.mod backend/go.sum ./

# Download dependencies
RUN go mod download

# Copy backend source code
COPY backend/ .

# Build the Go app
RUN CGO_ENABLED=0 GOOS=linux go build -o api cmd/api/main.go

# Production stage
FROM alpine:latest

WORKDIR /app

# Install ca-certificates for HTTPS requests
RUN apk --no-cache add ca-certificates

# Copy the binary from builder
COPY --from=builder /app/api .

# Dokku sets PORT dynamically
EXPOSE 5000

# Run the binary
CMD ["./api"]