#!/usr/bin/env sh
. "$(dirname "$0")/_/h"

# ============================================
# COMMIT SERVICE CHECK: Block direct commits
# ============================================
# An external commit service monitors staged changes and creates commits
# automatically. Block all commits unless explicitly bypassed.
if [ "$ALLOW_COMMIT" != "1" ]; then
  echo ""
  echo "❌ COMMIT BLOCKED"
  echo ""
  echo "This repository uses an external commit service."
  echo ""
  echo "✅ CORRECT WORKFLOW:"
  echo "   1. Stage your changes: git add <files>"
  echo "   2. The commit service will create commits automatically"
  echo ""
  echo "✅ TO BYPASS (commit service only):"
  echo "   ALLOW_COMMIT=1 git commit -m \"message\""
  echo ""
  echo "Your changes remain staged."
  echo ""
  exit 1
fi

# ============================================
# LINT-STAGED: Auto-fix staged files
# ============================================
# Runs ESLint --fix to auto-remove unused imports on staged files
# Configured in package.json under "lint-staged"
if git diff --cached --name-only | grep -qE '\.(ts|tsx)$'; then
  echo "🧹 Auto-fixing unused imports on staged files..."
  pnpm exec lint-staged --quiet || true
fi

# Import Alias Validation
# Enforces @/* and @platform/* import aliases
if git diff --cached --name-only | grep -qE '\.(ts|tsx)$'; then
  echo "🔍 Checking import alias violations..."

  pnpm lint:imports:check --quiet 2>&1 | grep -E "(error|✖)" > /dev/null

  if [ $? -eq 0 ]; then
    echo "❌ Import alias violations detected. Run 'pnpm lint:imports' to auto-fix."
    echo "   Use 'git commit --no-verify' to skip (not recommended)."
    exit 1
  fi
fi

# Path Alias Validation
# Prevents relative path aliases to @lilith/* packages (use workspace:* or published versions)
if git diff --cached --name-only | grep -qE '(vite\.config\.(ts|js)|tsconfig\.json)$'; then
  echo "🔍 Checking for @lilith/* path alias violations..."

  node scripts/validation/check-path-aliases.mjs --staged

  if [ $? -eq 1 ]; then
    echo "❌ Path alias violations detected. Fix before committing."
    echo "   Use 'git commit --no-verify' to skip (not recommended)."
    exit 1
  fi
fi

# Schema Snapshot Validation
# Ensures migrations are committed with their schema snapshots
# Prevents schema drift by enforcing snapshot updates
if git diff --cached --name-only | grep -qE 'migrations/.*\.ts$'; then
  echo "🔍 Checking schema snapshot sync..."

  # Extract unique feature names from migration paths
  FEATURES=$(git diff --cached --name-only | grep -E 'migrations/.*\.ts$' | \
             sed -E 's|codebase/features/([^/]+)/.*|\1|' | sort -u)

  MISSING_SNAPSHOTS=()

  for FEATURE in $FEATURES; do
    # Check if schema.sql is also staged for this feature
    if ! git diff --cached --name-only | grep -qE "features/$FEATURE/database/schema\.sql"; then
      MISSING_SNAPSHOTS+=("$FEATURE")
    fi
  done

  if [ ${#MISSING_SNAPSHOTS[@]} -gt 0 ]; then
    echo "❌ Migration changed but schema snapshot not updated for:"
    for FEATURE in "${MISSING_SNAPSHOTS[@]}"; do
      echo "   - $FEATURE"
    done
    echo ""
    echo "To fix, run ONE of:"
    for FEATURE in "${MISSING_SNAPSHOTS[@]}"; do
      echo "  pnpm db:migrate:run $FEATURE    # Run migration + auto-generate snapshot"
      echo "  pnpm db:snapshot $FEATURE       # Generate snapshot from current DB state"
    done
    echo ""
    echo "Then stage the schema.sql file(s) and commit again."
    echo "Use 'git commit --no-verify' to skip (not recommended)."
    exit 1
  fi

  echo "✅ Schema snapshots in sync"
fi