FROM golang:alpine AS builder

# Install build tools needed for go-sqlite3 (CGO)
RUN apk add --no-cache gcc musl-dev

WORKDIR /app

# Initialize module and get dependencies
RUN go mod init calendar-service && \
    go get github.com/mattn/go-sqlite3 && \
    go get golang.org/x/crypto/bcrypt && \
    go get golang.org/x/net/webdav && \
    go get github.com/google/uuid

COPY main.go .

RUN go build -o server main.go

# Final Stage
FROM alpine:latest

# Create non-root user
RUN addgroup -g 1000 appuser && \
    adduser -D -u 1000 -G appuser appuser

WORKDIR /home/appuser

COPY --from=builder /app/server .

# Create directory for sqlite db
RUN mkdir -p data && chown -R appuser:appuser /home/appuser

USER appuser

EXPOSE 8000

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