# Builder stage
FROM golang:1.24-trixie AS builder

WORKDIR /app

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

# Download dependencies
RUN go mod download

# Copy source code
COPY . .

# Build the application
# CGO_ENABLED=0 for static binary since we are using pure Go SQLite driver (glebarez/sqlite)
RUN CGO_ENABLED=0 go build -o server ./cmd/server/main.go

# Runtime stage
FROM debian:trixie-slim

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    tzdata \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN useradd -r -u 1000 -s /bin/false appuser

WORKDIR /app

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

# Copy web assets (templates, static files)
COPY --from=builder /app/web ./web

# Create data directory for SQLite
RUN mkdir -p /app/data && chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

# Expose port
EXPOSE 8080

# Volume for persistent data
VOLUME ["/app/data"]

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8080/ || exit 1

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