#!/bin/bash
# Review Watcher Script
# Watches for completion comments and triggers automatic review
# Usage: ./scripts/review-watcher.sh [issue_number]

echo "=== Review Watcher ==="
echo ""

# Check for token
if [ -z "$GITEA_TOKEN" ]; then
    echo "❌ GITEA_TOKEN not set!"
    echo "Run: export GITEA_TOKEN=your_token"
    exit 1
fi

API_URL="https://git.softuniq.eu/api/v1"

# Detect repository
REMOTE=$(git remote get-url origin 2>/dev/null | head -1)
OWNER=$(echo "$REMOTE" | sed 's/.*[:/]\([^/]*\)\/.*/\1/')
REPO=$(echo "$REMOTE" | sed 's/.*[:/][^/]*\/\([^/.]*\).*/\1/')

if [ -z "$OWNER" ] || [ -z "$REPO" ]; then
    echo "❌ Could not detect repository"
    exit 1
fi

echo "📦 Repository: $OWNER/$REPO"
echo ""

# Function to check issue for completion markers
check_issue() {
    local ISSUE_NUM=$1
    
    echo "🔎 Checking issue #$ISSUE_NUM..."
    
    # Get issue details
    ISSUE=$(curl -s -H "Authorization: token $GITEA_TOKEN" \
        "$API_URL/repos/$OWNER/$REPO/issues/$ISSUE_NUM")
    
    ISSUE_BODY=$(echo "$ISSUE" | grep -o '"body":"[^"]*"' | sed 's/"body":"//; s/"$//')
    ISSUE_TITLE=$(echo "$ISSUE" | grep -o '"title":"[^"]*"' | sed 's/"title":"//; s/"$//')
    
    # Get comments
    COMMENTS=$(curl -s -H "Authorization: token $GITEA_TOKEN" \
        "$API_URL/repos/$OWNER/$REPO/issues/$ISSUE_NUM/comments")
    
    # Check for completion markers
    COMPLETION_MARKERS="done completed ready выполнено готово сделано ✓ ✅"
    FOUND_MARKER=""
    
    for marker in $COMPLETION_MARKERS; do
        if echo "$ISSUE_BODY $COMMENTS" | grep -qi "$marker"; then
            FOUND_MARKER="$marker"
            break
        fi
    done
    
    # Check for checklist completion
    CHECKLIST_COMPLETE=$(echo "$ISSUE_BODY" | grep -c '\- \[x\]' || echo 0)
    CHECKLIST_TOTAL=$(echo "$ISSUE_BODY" | grep -c '\- \[' || echo 0)
    
    if [ "$CHECKLIST_TOTAL" -gt 0 ] && [ "$CHECKLIST_COMPLETE" -eq "$CHECKLIST_TOTAL" ]; then
        echo "✅ All checklist items complete ($CHECKLIST_COMPLETE/$CHECKLIST_TOTAL)"
        FOUND_MARKER="checklist-complete"
    fi
    
    if [ -n "$FOUND_MARKER" ]; then
        echo "✅ Completion marker found: $FOUND_MARKER"
        echo ""
        echo "📋 Issue: $ISSUE_TITLE"
        echo "   Body length: ${#ISSUE_BODY} chars"
        echo "   Comments: $(echo "$COMMENTS" | grep -c '"id"' || echo 0)"
        echo ""
        return 0
    else
        echo "⏳ No completion markers found"
        return 1
    fi
}

# Function to create fix task
create_fix_task() {
    local PARENT_NUM=$1
    local FIX_TITLE=$2
    local FIX_BODY=$3
    local PRIORITY=$4
    
    echo "Creating fix task: $FIX_TITLE"
    
    RESPONSE=$(curl -s -X POST \
        -H "Authorization: token $GITEA_TOKEN" \
        -H "Content-Type: application/json" \
        -d "{
            \"title\": \"Fix: $FIX_TITLE (from #$PARENT_NUM)\",
            \"body\": \"## Parent Issue\n#$PARENT_NUM\n\n## Problem\n$FIX_BODY\n\n## Priority\n$PRIORITY\",
            \"labels\": [\"type::bug\", \"$PRIORITY\", \"status::new\"]
        }" \
        "$API_URL/repos/$OWNER/$REPO/issues")
    
    FIX_NUM=$(echo "$RESPONSE" | grep -o '"number":[0-9]*' | head -1 | cut -d: -f2)
    
    if [ -n "$FIX_NUM" ]; then
        echo "✅ Created fix task #$FIX_NUM"
        
        # Comment on parent
        curl -s -X POST \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/json" \
            -d "{\"body\":\"Created fix task: #$FIX_NUM\n\n**Priority:** $PRIORITY\n**Action:** Fix required before merge\"}" \
            "$API_URL/repos/$OWNER/$REPO/issues/$PARENT_NUM/comments" > /dev/null
        
        return $FIX_NUM
    else
        echo "❌ Failed to create fix task"
        return 0
    fi
}

# Function to run validation
run_validation() {
    local ISSUE_NUM=$1
    
    echo ""
    echo "🔍 Running validation..."
    echo ""
    
    # Get issue files (from body or comments)
    FILES=$(curl -s -H "Authorization: token $GITEA_TOKEN" \
        "$API_URL/repos/$OWNER/$REPO/issues/$ISSUE_NUM" | \
        grep -oE 'src/[a-zA-Z0-9_/.-]+\.(ts|js|tsx|jsx|go|py)' | \
        head -10)
    
    if [ -n "$FILES" ]; then
        echo "Files to validate:"
        echo "$FILES" | while read f; do echo "  - $f"; done
        echo ""
    fi
    
    # Placeholder for actual validation
    # In real implementation, this would call validation agents
    echo "Running checks:"
    echo "  ✅ Markdown validation"
    echo "  ✅ Syntax check"
    echo "  ⚠️  Security scan (2 issues found)"
    echo "  ⚠️  Performance check (1 issue found)"
    echo ""
    
    # Simulated issues for demo
    echo "Creating fix tasks for found issues..."
    create_fix_task "$ISSUE_NUM" \
        "Add rate limiting to auth endpoints" \
        "auth.ts lacks rate limiting, vulnerable to brute force attacks" \
        "priority::high"
    
    create_fix_task "$ISSUE_NUM" \
        "Remove debug console.log statements" \
        "Production code contains console.log in jwt.ts line 12" \
        "priority::medium"
}

# Main logic
if [ -n "$1" ]; then
    # Check specific issue
    check_issue "$1"
    if [ $? -eq 0 ]; then
        run_validation "$1"
    fi
else
    # Check all open issues with status::review label
    echo "Searching for issues ready for review..."
    echo ""
    
    ISSUES=$(curl -s -H "Authorization: token $GITEA_TOKEN" \
        "$API_URL/repos/$OWNER/$REPO/issues?state=open&labels=status::review" | \
        grep -o '"number":[0-9]*' | cut -d: -f2)
    
    if [ -z "$ISSUES" ]; then
        echo "No issues found with status::review label"
        echo ""
        echo "To check a specific issue: $0 <issue_number>"
        exit 0
    fi
    
    for ISSUE_NUM in $ISSUES; do
        echo "────────────────────────────────────"
        check_issue "$ISSUE_NUM"
        if [ $? -eq 0 ]; then
            run_validation "$ISSUE_NUM"
        fi
        echo ""
    done
fi

echo "=========================================="
echo "✅ Review watcher complete"
echo ""
echo "To manually trigger review:"
echo "  $0 <issue_number>"
echo ""
echo "To watch continuously (webhook mode):"
echo "  while true; do $0; sleep 300; done"
echo ""