# Build stage for Go backend
FROM golang:1.21-alpine AS go-builder

WORKDIR /app

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

# Download dependencies
RUN go mod download

# Copy source code
COPY *.go ./

# Build the application
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .

# Build stage for React frontend
FROM node:18-alpine AS frontend-builder

WORKDIR /app/frontend

# Copy package files
COPY frontend/package*.json ./

# Install dependencies
RUN npm ci --only=production

# Copy source code
COPY frontend/ ./

# Build the React app
RUN npm run build

# Final stage
FROM alpine:latest

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

WORKDIR /root/

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

# Copy the React build from frontend-builder stage
COPY --from=frontend-builder /app/frontend/build ./frontend/build

# Expose port
EXPOSE 8080

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