# =============================================================================
# Nakama with Custom Chess Modules
# =============================================================================
# Two-stage build:
#   1. Build TypeScript modules with Node.js
#   2. Copy compiled JS to Nakama runtime
# =============================================================================

# Stage 1: Build TypeScript modules
FROM node:20-alpine AS builder

# Install git for GitHub dependencies (nakama-runtime) and file for debugging
RUN apk add --no-cache git file

WORKDIR /app

# Copy module files and install dependencies
COPY modules/package*.json ./
# Use npm ci for reproducible builds from lock file
RUN npm ci && \
    echo "=== Installed versions ===" && \
    npm ls --depth=0

# Copy source and build
COPY modules/tsconfig.json ./
COPY modules/src ./src

# Build with esbuild (output to build/index.js)
RUN npm run build

# Verify build output exists and show details
RUN ls -la build/ && test -f build/index.js && \
    echo "=== File info ===" && \
    file build/index.js && \
    echo "=== Line count ===" && \
    wc -l build/index.js && \
    echo "=== First 5 lines ===" && \
    head -5 build/index.js && \
    echo "=== Lines 1259-1265 ===" && \
    sed -n '1259,1265p' build/index.js

# Stage 2: Nakama runtime with modules
FROM registry.heroiclabs.com/heroiclabs/nakama:3.35.1

# Copy compiled JavaScript modules
# Nakama expects modules at /nakama/data/modules/
COPY --from=builder /app/build/index.js /nakama/data/modules/main.js

# Copy config file (optional - can also be passed via CLI)
COPY config.yml /nakama/data/config.yml