# 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=kankali.darkhelm.lan:3001/darkhelm.org/plex-playlist-cicd-base:latest
FROM ${CICD_BASE_IMAGE}

# Build args for cache busting
ARG GITHUB_SHA
ENV GITHUB_SHA=${GITHUB_SHA}
LABEL org.opencontainers.image.revision=${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 kankali.darkhelm.lan" > ~/.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 kankali.darkhelm.lan >> ~/.ssh/known_hosts 2>/dev/null || echo "Warning: ssh-keyscan failed, continuing with StrictHostKeyChecking=no") && \
    echo "=== Extracting dependency files for optimized caching ===" && \
    GIT_SSH_COMMAND="ssh -F ~/.ssh/config" \
    git -c core.autocrlf=false -c core.eol=lf clone --depth 1 --branch main \
    ssh://git@kankali.darkhelm.lan:2222/DarkHelm.org/plex-playlist.git /tmp/repo && \
    git -C /tmp/repo config core.autocrlf false && \
    git -C /tmp/repo config core.eol lf && \
    if [ -n "$GITHUB_SHA" ]; then \
        cd /tmp/repo && \
        if GIT_SSH_COMMAND="ssh -F ~/.ssh/config" git fetch --depth 1 origin "$GITHUB_SHA" >/tmp/git-fetch-sha.log 2>&1 && \
           git checkout "$GITHUB_SHA" >/tmp/git-checkout-sha.log 2>&1; then \
            echo "✓ Checked out requested GITHUB_SHA: $GITHUB_SHA"; \
        else \
            echo "❌ Failed to checkout requested GITHUB_SHA: $GITHUB_SHA"; \
            echo "--- git fetch output ---"; \
            cat /tmp/git-fetch-sha.log 2>/dev/null || true; \
            echo "--- git checkout output ---"; \
            cat /tmp/git-checkout-sha.log 2>/dev/null || true; \
            exit 1; \
        fi; \
    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/backend/uv.lock /workspace/backend/ 2>/dev/null || echo "No backend uv.lock" && \
    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/frontend/.yarnrc.yml /workspace/frontend/ 2>/dev/null || echo "No frontend .yarnrc.yml" && \
    cp /tmp/repo/.pre-commit-config.yaml /workspace/ 2>/dev/null || echo "No pre-commit config" && \
    cp /tmp/repo/.markdownlint.yaml /workspace/ 2>/dev/null || echo "No markdownlint config" && \
    echo "✓ Dependency files extracted for optimized layer caching" && \
    rm -rf ~/.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
        if [ -f "uv.lock" ]; then \
            echo "Using locked backend dependencies (uv.lock)" && \
            uv sync --dev --frozen; \
        else \
            echo "uv.lock not found, resolving dependencies from pyproject.toml" && \
            uv sync --dev; \
        fi && \
        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"

# 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 && \
        echo "Attempt 1/1: Installing project-specific frontend dependencies..." && \
        echo "(Common dev tools pre-installed globally for performance)" && \
        timeout 1200 yarn install --immutable --mode=skip-build \
        && INSTALL_SUCCESS=true || \
        (echo "Attempt failed, cleaning up..." && \
         rm -rf node_modules .yarn/cache .yarn/install-state.gz && \
         yarn cache clean --all 2>/dev/null || true) && \
        rm -rf .yarn/cache && \
        if [ "$INSTALL_SUCCESS" = "false" ]; then \
            echo "WARNING: Frontend dependencies installation failed"; \
            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: Reuse the repo cloned in phase 1 to avoid re-clone/session timeout
WORKDIR /workspace
RUN if [ ! -d "/tmp/repo/.git" ]; then \
        echo "❌ Missing /tmp/repo clone from phase 1" && \
        exit 1; \
    fi

RUN echo "Copying source code while preserving installed dependencies..." && \
    echo "Source files in repo:" && \
    ls -la /tmp/repo/ && \
    echo "Current workspace state:" && \
    find /workspace -name "node_modules" -o -name ".venv" -o -name ".yarn" && \
    echo "Copying source files (excluding dependencies)..." && \
    for item in /tmp/repo/*; do \
        basename_item=$(basename "$item"); \
        if [ "$basename_item" = "backend" ] && [ -d "/workspace/backend/.venv" ]; then \
            echo "Copying backend files while preserving .venv..."; \
            find "$item" -mindepth 1 -maxdepth 1 ! -name ".venv" -exec cp -rf {} /workspace/backend/ \;; \
        elif [ "$basename_item" = "frontend" ] && [ -d "/workspace/frontend/node_modules" ]; then \
            echo "Copying frontend files (including dotfiles) while preserving node_modules..."; \
            find "$item" -mindepth 1 -maxdepth 1 ! -name "node_modules" -exec cp -rf {} /workspace/frontend/ \;; \
        else \
            echo "Copying $basename_item..."; \
            cp -rf "$item" /workspace/; \
        fi; \
    done && \
    # Copy common hidden root files without touching . or ..
    for dotfile in .dockerignore .gitignore .pre-commit-config.yaml .markdownlint.yaml .editorconfig; do \
        if [ -f "/tmp/repo/${dotfile}" ]; then \
            cp -f "/tmp/repo/${dotfile}" /workspace/; \
        fi; \
    done && \
    echo "Final dependency check:" && \
    find /workspace -name "node_modules" -o -name ".venv" -o -name ".yarn" && \
        if [ -n "${GITHUB_SHA}" ]; then \
            echo "${GITHUB_SHA}" > /workspace/.cicd-source-sha; \
        fi && \
    echo "✓ Full source code copied, dependencies preserved" && \
    rm -rf /tmp/repo

# PHASE 3.5: Re-link Yarn after source code update (node-modules linker only)
WORKDIR /workspace/frontend
RUN if [ -f "package.json" ] && [ -d "node_modules" ]; then \
        echo "=== Re-linking Yarn node_modules After Source Code Update ===" && \
        echo "Ensuring package.json and installed node_modules are in sync..." && \
        yarn install --immutable && \
        echo "✓ Yarn node_modules re-linked successfully"; \
    else \
        echo "ℹ No node_modules detected, skipping Yarn re-link"; \
    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 \
        # pre-commit requires a git repo at runtime; keep it in the final image.
        git config --global user.email "ci@cicd" && \
        git config --global user.name "CICD" && \
        git init /workspace && \
        git -C /workspace add -A && \
        cd /workspace/backend && \
        if uv run pre-commit install-hooks; then \
            echo "✓ Pre-commit hook environments installed successfully"; \
        else \
            echo "⚠ pre-commit hook prewarming failed; continuing"; \
        fi; \
    else \
        echo "No .pre-commit-config.yaml found, skipping hook installation"; \
    fi

# PHASE 6: Playwright browsers optimization check
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" && \
            PW_BROWSER_PATH="${PLAYWRIGHT_BROWSERS_PATH:-/root/.cache/ms-playwright}" && \
            if find "${PW_BROWSER_PATH}" -maxdepth 1 -type d -name 'chromium-*' | grep -q .; then \
                echo "✓ Playwright Chromium browser preinstalled at ${PW_BROWSER_PATH}"; \
            else \
                echo "⚠ Playwright Chromium not preinstalled at ${PW_BROWSER_PATH} - CI will install on demand"; \
            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 pydoclint --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" ]; then \
        verify_required_tool() { \
            tool_name="$1"; \
            yarn_target="$2"; \
            fallback_bin="$3"; \
            if yarn "${yarn_target}" --version; then \
                return 0; \
            fi; \
            if command -v "${fallback_bin}" >/dev/null 2>&1; then \
                "${fallback_bin}" --version; \
                return 0; \
            fi; \
            echo "ERROR: ${tool_name} is not available via yarn or global fallback"; \
            return 1; \
        }; \
        verify_optional_yarn_tool() { \
            tool_name="$1"; \
            yarn_target="$2"; \
            if yarn "${yarn_target}" --version; then \
                return 0; \
            fi; \
            echo "⚠ ${tool_name} version check failed under Yarn wrapper; continuing"; \
            return 0; \
        }; \
        echo "✓ node_modules dependencies found, verifying tools..." && \
        verify_required_tool "eslint" "eslint" "eslint" && \
        verify_required_tool "prettier" "prettier" "prettier" && \
        verify_required_tool "typescript" "tsc" "tsc" && \
        verify_optional_yarn_tool "vitest" "vitest" && \
        echo "✓ All frontend tools verified successfully"; \
    else \
        echo "ERROR: No frontend node_modules found"; \
        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"]