# Multi-stage build for Go backend
FROM golang:1.21-alpine AS builder

WORKDIR /app

# Install build dependencies
RUN apk add --no-cache git gcc musl-dev sqlite-dev

# Copy go mod files
COPY backend/go.mod backend/go.sum* ./
RUN go mod download || true

# Copy source code
COPY backend/ .

# Build the application
RUN CGO_ENABLED=1 GOOS=linux go build -a -installsuffix cgo -o server ./cmd/server

# Final stage
FROM alpine:latest

WORKDIR /app

# Install runtime dependencies
RUN apk --no-cache add ca-certificates sqlite-libs

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

# Create data directory
RUN mkdir -p /app/data

# Expose port
EXPOSE 8080

# Run the application
CMD ["./server"]