#!/bin/sh
# ai-workflow-engine pre-commit hook (Enhanced for AI Memory)
# Auto-installed by: npx ai-workflow init

# ============================================================================
# 🤖 AI WORKFLOW ENGINE - PRE-COMMIT VALIDATION
# ============================================================================
# This hook ensures workflow compliance before commits.
# It will BLOCK commits that don't meet quality gates.
# ============================================================================

echo ""
echo "╔══════════════════════════════════════════════════════════════════════╗"
echo "║ 🤖 AI WORKFLOW ENGINE - Pre-Commit Validation                        ║"
echo "╚══════════════════════════════════════════════════════════════════════╝"
echo ""

# Get project root
ROOT_DIR=$(git rev-parse --show-toplevel)

# Check if ai-workflow-engine is installed
if ! command -v npx > /dev/null 2>&1; then
  echo "❌ Error: npx not found. Please install Node.js."
  exit 1
fi

# Run unified validation (v1.5)
echo "🔍 Checking workflow compliance..."
echo ""

# FR-011: Check if task exists, auto-create if not
if [ ! -f .ai-context/current-task.json ]; then
  echo "⚠️  No active workflow task detected"
  echo ""
  
  # Get the commit message that's about to be committed
  COMMIT_MSG_FILE=".git/COMMIT_EDITMSG"
  
  if [ -f "$COMMIT_MSG_FILE" ]; then
    COMMIT_MSG=$(head -n 1 "$COMMIT_MSG_FILE")
    
    echo "🔧 Auto-creating task from commit message..."
    echo "   Message: $COMMIT_MSG"
    echo ""
    
    # Create task using commit message parser
    npx ai-workflow task create "$COMMIT_MSG" --auto-from-commit
    
    if [ $? -eq 0 ]; then
      echo "✅ Task created automatically!"
      echo ""
    else
      echo "❌ Failed to create task automatically"
      echo "   Please create manually: npx ai-workflow task create \"<description>\""
      echo ""
      exit 1
    fi
  else
    echo "❌ No commit message found"
    echo "   Please create task: npx ai-workflow task create \"<description>\""
    echo ""
    exit 1
  fi
fi

# Run validation with enhanced output
npx ai-workflow validate --pre-commit --json --silent 2>&1

VALIDATION_EXIT=$?

echo ""

# If validation failed
if [ $VALIDATION_EXIT -ne 0 ]; then
  echo "╔══════════════════════════════════════════════════════════════════════╗"
  echo "║ ❌ COMMIT BLOCKED - Workflow Validation Failed                       ║"
  echo "╚══════════════════════════════════════════════════════════════════════╝"
  echo ""
  echo "⚠️  IMPORTANT: This project uses ai-workflow-engine for quality control."
  echo ""
  echo "📋 Common Issues & Solutions:"
  echo ""
  echo "   1️⃣  No Active Task:"
  echo "      Problem: You're committing without a workflow task"
  echo "      Fix: npx ai-workflow task create \"<describe your work>\""
  echo "      Then: git commit again"
  echo ""
  echo "   2️⃣  Workflow State Out of Sync:"
  echo "      Problem: Your workflow state doesn't match your changes"
  echo "      Fix: npx ai-workflow sync --json --silent"
  echo "      Then: git commit again"
  echo ""
  echo "   3️⃣  Low Test Coverage (P0 Requirements):"
  echo "      Problem: Critical requirements need tests"
  echo "      Fix: Add tests to __tests__/"
  echo "      Then: git commit again"
  echo ""
  echo "   4️⃣  Missing Requirement Links:"
  echo "      Problem: Code doesn't reference requirements"
  echo "      Fix: Add @requirement FR-XXX comments to code"
  echo "      Then: git commit again"
  echo ""
  echo "💡 Quick Check:"
  echo "   Status: npx ai-workflow task status --json --silent"
  echo "   Sync: npx ai-workflow sync --json --silent"
  echo "   Validate: npx ai-workflow validate --json --silent"
  echo ""
  echo "🔓 Override (Use Carefully!):"
  echo "   git commit --no-verify -m \"your message\""
  echo ""
  echo "   ⚠️  WARNING: Bypassing validation should be rare!"
  echo "   Use only for:"
  echo "   - Documentation updates"
  echo "   - Configuration changes"
  echo "   - Emergency hotfixes"
  echo ""
  echo "   MUST document bypass reason in commit message!"
  echo ""
  echo "📖 Learn More:"
  echo "   Guide: docs/guides/HOW_TO_REMIND_AI.md"
  echo "   Status: cat .ai-context/current-task.json"
  echo "   Help: npx ai-workflow --help"
  echo ""
  echo "╚══════════════════════════════════════════════════════════════════════╝"
  echo ""
  
  exit 1
fi

# If validation passed
echo "╔══════════════════════════════════════════════════════════════════════╗"
echo "║ ✅ Workflow Validation Passed                                        ║"
echo "╚══════════════════════════════════════════════════════════════════════╝"
echo ""
echo "💡 Next Steps After Commit:"
echo "   - Run: npx ai-workflow sync --json --silent (to update evidence)"
echo "   - Check: npx ai-workflow task status --json --silent"
echo ""
echo "⚠️  Don't forget to complete your task when all work is done:"
echo "   npx ai-workflow task complete"
echo ""

exit 0