# Multi-stage build for GitCitadel Online
# Stage 1: Build Go application
FROM golang:1.22-alpine AS go-builder

# Install build dependencies
RUN apk add --no-cache git make

WORKDIR /build

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

# Copy source code
COPY . .

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

# Stage 2: Build and install gc-parser from local directory
# We copy the local gc-parser directory, build it, and install it to avoid git repository access issues
FROM node:18-alpine AS node-setup

WORKDIR /app

# Copy package.json and the local gc-parser directory
COPY package.json package-lock.json* ./
COPY gc-parser ./gc-parser

# Build gc-parser (install dependencies and compile TypeScript)
WORKDIR /app/gc-parser
RUN npm install && npm run build

# Go back to /app and install gc-parser from local directory
# This will install gc-parser and @asciidoctor/core (as a dependency of gc-parser)
WORKDIR /app
RUN npm install ./gc-parser

# Verify gc-parser is installed and can be required
RUN node -e "require('gc-parser'); console.log('✓ gc-parser installed and verified')" || \
    (echo "Error: gc-parser verification failed" && exit 1)

# Ensure gc-parser is a directory, not a symlink (for proper copying to final stage)
RUN if [ -L node_modules/gc-parser ]; then \
        echo "Warning: gc-parser is a symlink, copying as directory..."; \
        rm node_modules/gc-parser; \
        cp -r gc-parser node_modules/gc-parser; \
    fi

# Stage 3: Final runtime image
FROM alpine:latest

# Install runtime dependencies
RUN apk add --no-cache \
    ca-certificates \
    wget \
    nodejs \
    npm \
    git \
    && rm -rf /var/cache/apk/*

WORKDIR /app

# Copy Node.js dependencies from node-setup stage
COPY --from=node-setup /app/node_modules ./node_modules

# Copy built Go binary from go-builder stage
COPY --from=go-builder /build/gitcitadel-online .

# Copy necessary files
COPY scripts ./scripts
COPY static ./static
COPY templates ./templates
COPY docker-entrypoint.sh ./

# Make entrypoint executable
RUN chmod +x docker-entrypoint.sh

# Create cache directory
RUN mkdir -p cache/media && chmod 755 cache

# Expose port
EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1

# Use entrypoint script
ENTRYPOINT ["./docker-entrypoint.sh"]

# Run the application
CMD ["./gitcitadel-online"]