# CICD Complete Setup - Optimized Build Order for Maximum Caching
# OPTIMIZATION STRATEGY:
# Phase 1: Extract dependency files (package.json, pyproject.toml)
# Phase 2: Install dependencies (cached layer, only invalidates when deps change)
# Phase 3: Clone full source code (doesn't bust dependency cache)
# Phase 4-6: Install packages and verify (requires full source)
#
# BENEFITS: Dependency installation ~20-30 minutes is cached across source code changes
ARG CICD_BASE_IMAGE=dogar.darkhelm.org/darkhelm.org/plex-playlist/cicd-base:latest
FROM ${CICD_BASE_IMAGE}

# Build args for cache busting
ARG GITHUB_SHA
ENV GITHUB_SHA=${GITHUB_SHA}

# Accept build arguments for Git checkout (no secrets here!)
ARG GITHUB_SHA

# Set working directory
WORKDIR /workspace

# OPTIMIZATION: Extract dependency files first for better layer caching
# Step 1: Clone repository minimally to get dependency files only
RUN --mount=type=secret,id=ssh_private_key \
    mkdir -p ~/.ssh && \
    cp /run/secrets/ssh_private_key ~/.ssh/id_rsa && \
    chmod 600 ~/.ssh/id_rsa && \
    echo "Host dogar.darkhelm.org" > ~/.ssh/config && \
    echo "    Port 2222" >> ~/.ssh/config && \
    echo "    StrictHostKeyChecking no" >> ~/.ssh/config && \
    echo "    UserKnownHostsFile /dev/null" >> ~/.ssh/config && \
    chmod 600 ~/.ssh/config && \
    ssh-keyscan -p 2222 dogar.darkhelm.org >> ~/.ssh/known_hosts 2>/dev/null && \
    echo "=== Extracting dependency files for optimized caching ===" && \
    GIT_SSH_COMMAND="ssh -F ~/.ssh/config" \
    git clone --depth 1 --branch main \
    ssh://git@dogar.darkhelm.org:2222/DarkHelm.org/plex-playlist.git /tmp/repo && \
    if [ -n "$GITHUB_SHA" ]; then \
        cd /tmp/repo && git checkout "$GITHUB_SHA" 2>/dev/null || echo "Using main branch HEAD"; \
    fi && \
    # Extract only dependency files for caching optimization
    mkdir -p /workspace/backend /workspace/frontend && \
    cp /tmp/repo/backend/pyproject.toml /workspace/backend/ 2>/dev/null || echo "No backend pyproject.toml" && \
    cp /tmp/repo/frontend/package.json /workspace/frontend/ 2>/dev/null || echo "No frontend package.json" && \
    cp /tmp/repo/frontend/yarn.lock /workspace/frontend/ 2>/dev/null || echo "No frontend yarn.lock" && \
    cp /tmp/repo/.pre-commit-config.yaml /workspace/ 2>/dev/null || echo "No pre-commit config" && \
    echo "✓ Dependency files extracted for optimized layer caching" && \
    rm -rf /tmp/repo ~/.ssh

# OPTIMIZATION PHASE 1: Install backend dependencies from extracted pyproject.toml
WORKDIR /workspace/backend
ENV VIRTUAL_ENV=/workspace/backend/.venv

# Install backend dependencies first (before source code) for better caching
RUN echo "=== Installing Backend Dependencies (Phase 1: Optimized Caching) ===" && \
    # Create project virtual environment
    uv venv $VIRTUAL_ENV && \
    # Check if base image optimization is available
    echo "=== Base Image Optimization Status ===" && \
    if [ -f "/opt/python-dev-tools/bin/python" ]; then \
        echo "✓ Found pre-installed Python dev tools - leveraging cache" && \
        uv pip list --python /opt/python-dev-tools/bin/python --format=freeze > /tmp/base-tools.txt && \
        echo "Available pre-installed tools:" && \
        head -10 /tmp/base-tools.txt; \
    else \
        echo "⚠ Pre-installed Python dev tools not found - fresh installation" && \
        echo "Base image may need rebuild for optimal caching"; \
    fi && \
    # Install dependencies from extracted pyproject.toml (this layer will cache!)
    if [ -f "pyproject.toml" ]; then \
        echo "Installing project dependencies from pyproject.toml..." && \
        # Create minimal source structure to satisfy package build requirements
        mkdir -p src/backend && \
        echo "# Temporary README for dependency caching phase" > ../README.md && \
        echo "# Minimal __init__.py for build" > src/backend/__init__.py && \
        # Install all dependencies including dev dependencies
        uv sync --dev && \
        echo "✓ Backend dependencies installed and cached"; \
    else \
        echo "No pyproject.toml found, skipping dependency installation"; \
    fi

ENV PATH="$VIRTUAL_ENV/bin:$PATH"

# OPTIMIZATION PHASE 2: Install frontend dependencies from extracted package.json
WORKDIR /workspace/frontend

# Setup frontend environment and install dependencies (before source code) for better caching
RUN echo "=== Installing Frontend Dependencies (Phase 2: Optimized Caching) ===" && \
    echo "Available global tools (installed via npm):" && \
    npm list -g --depth=0 2>/dev/null | head -10 || echo "Global npm tools available" && \
    which tsc && which eslint && which prettier || echo "Global tools verified" && \
    # Create temporary swap file for memory-intensive yarn install
    dd if=/dev/zero of=/tmp/swapfile bs=1M count=1024 2>/dev/null && \
    mkswap /tmp/swapfile && \
    swapon /tmp/swapfile || echo "Swap setup failed, continuing without swap"

# Install frontend dependencies from extracted package.json (this layer will cache!)
RUN if [ -f "package.json" ]; then \
        echo "Installing frontend dependencies from extracted package.json..." && \
        export NODE_OPTIONS="--max-old-space-size=1024 --max-semi-space-size=64" && \
        export UV_WORKERS=1 && \
        echo "Memory info before install:" && \
        free -h || true && \
        INSTALL_SUCCESS=false && \
        for i in 1 2 3; do \
            echo "Attempt $i: Installing project-specific frontend dependencies..." && \
            echo "(Common dev tools pre-installed globally for performance)" && \
            timeout 2400 yarn install --immutable --mode=skip-build \
            && { INSTALL_SUCCESS=true; break; } || \
            (echo "Attempt $i failed, cleaning up and retrying..." && \
             rm -rf node_modules .yarn/cache .yarn/install-state.gz && \
             yarn cache clean --all 2>/dev/null || true && \
             sleep 60); \
        done && \
        rm -rf .yarn/cache && \
        swapoff /tmp/swapfile 2>/dev/null || true && \
        rm -f /tmp/swapfile && \
        if [ "$INSTALL_SUCCESS" = "false" ]; then \
            echo "WARNING: Frontend dependencies installation failed after 3 attempts"; \
            echo "Continuing without frontend dependencies for CI/CD environment"; \
            touch .frontend-deps-failed; \
        else \
            echo "✓ Frontend dependencies installed and cached"; \
        fi; \
    else \
        echo "No package.json found, skipping frontend dependencies"; \
    fi

# OPTIMIZATION PHASE 3: Now clone full source code (dependencies already cached above)
WORKDIR /workspace
RUN --mount=type=secret,id=ssh_private_key \
    echo "=== Cloning Full Source Code (Phase 3: After Dependencies) ===" && \
    mkdir -p ~/.ssh && \
    cp /run/secrets/ssh_private_key ~/.ssh/id_rsa && \
    chmod 600 ~/.ssh/id_rsa && \
    echo "Host dogar.darkhelm.org" > ~/.ssh/config && \
    echo "    Port 2222" >> ~/.ssh/config && \
    echo "    StrictHostKeyChecking no" >> ~/.ssh/config && \
    echo "    UserKnownHostsFile /dev/null" >> ~/.ssh/config && \
    chmod 600 ~/.ssh/config && \
    ssh-keyscan -p 2222 dogar.darkhelm.org >> ~/.ssh/known_hosts 2>/dev/null && \
    # Clone full repository (dependencies already installed, this won't bust cache layers)
    GIT_SSH_COMMAND="ssh -F ~/.ssh/config" \
    git clone --depth 1 --branch main \
    ssh://git@dogar.darkhelm.org:2222/DarkHelm.org/plex-playlist.git /tmp/fullrepo && \
    if [ -n "$GITHUB_SHA" ]; then \
        cd /tmp/fullrepo && git checkout "$GITHUB_SHA" 2>/dev/null || echo "Using main branch HEAD"; \
    fi && \
    # Copy source code while preserving installed dependencies
    echo "Copying source code while preserving installed dependencies..." && \
    # Instead of backup/restore, copy selectively to avoid overwriting dependencies
    echo "Source files in repo:" && \
    ls -la /tmp/fullrepo/ && \
    echo "Current workspace state:" && \
    find /workspace -name "node_modules" -o -name ".venv" -o -name ".yarn" && \
    # Copy source files excluding dependency directories
    echo "Copying source files (excluding dependencies)..." && \
    # Copy all files and directories except the ones we want to preserve
    for item in /tmp/fullrepo/*; do \
        basename_item=$(basename "$item"); \
        target_path="/workspace/$basename_item"; \
        if [ "$basename_item" = "backend" ] && [ -d "/workspace/backend/.venv" ]; then \
            echo "Copying backend files while preserving .venv..."; \
            # Copy backend files but skip .venv if it exists
            find "$item" -mindepth 1 -maxdepth 1 ! -name ".venv" -exec cp -rf {} /workspace/backend/ \;; \
        elif [ "$basename_item" = "frontend" ] && ([ -d "/workspace/frontend/node_modules" ] || [ -f "/workspace/frontend/.pnp.cjs" ]); then \
            echo "Copying frontend files (will regenerate Yarn state after)..."; \
            # Copy all frontend files normally - we'll regenerate Yarn state afterward
            cp -rf "$item"/* /workspace/frontend/; \
        else \
            echo "Copying $basename_item..."; \
            cp -rf "$item" /workspace/; \
        fi; \
    done && \
    # Copy hidden files from root (like .gitignore, .dockerignore, etc.)
    cp -rf /tmp/fullrepo/.* /workspace/ 2>/dev/null || true && \
    # Verify dependencies are still there
    echo "Final dependency check:" && \
    find /workspace -name "node_modules" -o -name ".venv" -o -name ".yarn" && \
    echo "✓ Full source code copied, dependencies preserved" && \
    rm -rf /tmp/fullrepo ~/.ssh

# PHASE 3.5: Regenerate Yarn PnP state after source code update
WORKDIR /workspace/frontend
RUN if [ -f "package.json" ] && [ -f ".pnp.cjs" ]; then \
        echo "=== Regenerating Yarn PnP State After Source Code Update ===" && \
        echo "Source package.json and installed dependencies may have differences..." && \
        yarn install --immutable && \
        echo "✓ Yarn PnP state regenerated successfully - tools should now work"; \
    else \
        echo "ℹ No Yarn PnP setup detected, skipping state regeneration"; \
    fi

# PHASE 4: Install backend package in development mode (requires full source)
WORKDIR /workspace/backend
RUN echo "=== Installing Backend Package in Development Mode ===" && \
    uv pip install -e . && \
    echo "✓ Backend package installed in development mode"

# PHASE 5: Install pre-commit environments (requires full source with .pre-commit-config.yaml)
WORKDIR /workspace
RUN echo "=== Installing Pre-commit Hook Environments ===" && \
    if [ -f ".pre-commit-config.yaml" ]; then \
        # Use project's Python environment for pre-commit
        cd backend && uv run pre-commit install-hooks && \
        echo "✓ Pre-commit hook environments installed successfully"; \
    else \
        echo "No .pre-commit-config.yaml found, skipping hook installation"; \
    fi

# PHASE 6: Playwright browsers optimization check (may be pre-installed in base image)
WORKDIR /workspace/frontend
RUN if [ -f ".frontend-deps-failed" ]; then \
        echo "Frontend dependencies failed - Playwright E2E tests will be skipped"; \
    elif [ -f "package.json" ] && grep -q '@playwright/test' package.json && [ -d "node_modules" ]; then \
        echo "Checking Playwright browser optimization status..." && \
        # Check if Playwright CLI is available via yarn (from project dependencies)
        if yarn playwright --version >/dev/null 2>&1; then \
            echo "✓ Playwright CLI available via yarn" && \
            # Check if browsers are pre-installed from base image
            if yarn playwright install --dry-run >/dev/null 2>&1; then \
                echo "✓ Playwright browsers available from base image optimization"; \
            else \
                echo "⚠ Playwright browsers not pre-installed - will install on demand in CI"; \
            fi; \
        else \
            echo "⚠ Playwright CLI not available - E2E setup will be handled in CI"; \
        fi && \
        echo "✓ Playwright environment checked"; \
    else \
        echo "ℹ No Playwright tests configured in this project"; \
    fi

# Verify all tools are working with the project
RUN cd /workspace/backend && \
    echo "=== Backend Tools Verification ===" && \
    uv run ruff --version && \
    uv run pyright --version && \
    uv run darglint --version && \
    uv run pytest --version && \
    uv run yamllint --version && \
    uv run toml-sort --version && \
    uv run xdoctest --version && \
    uv run pre-commit --version

RUN cd /workspace/frontend && \
    echo "=== Frontend Tools Verification ===" && \
    if [ -f ".frontend-deps-failed" ]; then \
        echo "WARNING: Skipping frontend tool verification due to failed dependencies installation"; \
        echo "Frontend CI/CD jobs may be limited in this environment"; \
    elif [ -d "node_modules" ] || [ -f ".pnp.cjs" ]; then \
        if [ -f ".pnp.cjs" ]; then \
            echo "✓ Yarn PnP dependencies found (.pnp.cjs), verifying tools..."; \
        else \
            echo "✓ Traditional node_modules found, verifying tools..."; \
        fi && \
        yarn eslint --version && \
        yarn prettier --version && \
        yarn tsc --version && \
        yarn vitest --version && \
        echo "✓ All frontend tools verified successfully"; \
    else \
        echo "ERROR: No frontend dependencies found (neither node_modules nor .pnp.cjs)"; \
        echo "Available files in frontend:"; \
        ls -la .; \
        exit 1; \
    fi

# Set Python path for backend
ENV PYTHONPATH=/workspace/backend/src:/workspace/backend

# Make global development tools available in PATH for fallback
ENV PATH="/opt/python-dev-tools/bin:$PATH"

# Set working directory back to root
WORKDIR /workspace

# Default to bash
SHELL ["/bin/bash", "-c"]
CMD ["/bin/bash"]