# Build stage
FROM golang:1.23-alpine AS builder

# Install git and ca-certificates (needed for fetching dependencies)
RUN apk add --no-cache git ca-certificates

# Set working directory
WORKDIR /app

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

# Download dependencies
RUN go mod download

# Copy source code
COPY . .

# Build the application
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o school-service ./cmd/server

# Final stage
FROM alpine:3.19

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

# Set timezone
ENV TZ=Europe/Berlin

# Create non-root user
RUN adduser -D -g '' appuser

# Set working directory
WORKDIR /app

# Copy binary from builder
COPY --from=builder /app/school-service .

# Copy templates directory
COPY --from=builder /app/templates ./templates

# Use non-root user
USER appuser

# Expose port
EXPOSE 8084

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:8084/health || exit 1

# Run the application
CMD ["./school-service"]