# Multi-stage build: First stage builds Angular frontend
FROM node:18-alpine as frontend-builder

# Install dependencies for native modules
RUN apk add --no-cache python3 make g++

WORKDIR /frontend

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

# Copy .npmrc from frontend directory if it exists (using glob pattern to avoid errors)
# This allows different environments to use different npm registries
# To use: copy your user-level .npmrc to frontend/.npmrc before building
#   Unix/Mac: cp ~/.npmrc frontend/.npmrc
#   Windows: copy %USERPROFILE%\.npmrc frontend\.npmrc
COPY frontend/.npmr[c] ./ 2>/dev/null || :

# Install dependencies using npm install
# This will use the .npmrc configuration if present and generate a package-lock.json
# appropriate for the configured registry (Artifactory or public npm)
RUN npm install

# Copy frontend source
COPY frontend/src ./src
COPY frontend/public ./public
COPY frontend/angular.json ./
COPY frontend/tsconfig*.json ./

# Build the Angular app for production
RUN npm run build

# Second stage: Python backend with Angular static files
FROM python:3.11-alpine

WORKDIR /app

# Install system dependencies for Alpine
RUN apk add --no-cache \
    gcc \
    musl-dev \
    postgresql-dev \
    postgresql-client \
    linux-headers \
    curl

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY app/ ./app/
COPY utils/ ./utils/
COPY alembic/ ./alembic/
COPY alembic.ini .

# Copy Angular build from frontend-builder stage
COPY --from=frontend-builder /frontend/dist/frontend/browser ./static

# Create non-root user (Alpine uses adduser instead of useradd)
RUN adduser -D -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health

# Run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]