#!/bin/bash

# Script to completely reset the database cache and rebuild from scratch
# This clears all cached data and triggers a full sync from Jira

set -e

echo "🔄 Complete Database Reset and Rebuild"
echo "======================================"
echo ""

# Check if backend is running
BACKEND_URL="${BACKEND_URL:-http://localhost:3001}"
API_URL="${API_URL:-$BACKEND_URL/api}"

echo "📡 Checking backend connection..."
if ! curl -s -f "$BACKEND_URL/health" > /dev/null 2>&1; then
    echo "⚠️  Backend is not accessible at $BACKEND_URL"
    echo "   Make sure the backend is running and accessible"
    echo ""
    read -p "Continue anyway? (yes/no): " confirm
    if [ "$confirm" != "yes" ]; then
        echo "❌ Aborted."
        exit 1
    fi
fi

echo "✅ Backend is accessible"
echo ""

# Check if we need authentication
echo "🔐 Checking authentication..."
AUTH_HEADER=""
if [ -n "$API_TOKEN" ]; then
    AUTH_HEADER="-H \"Authorization: Bearer $API_TOKEN\""
    echo "✅ Using API token from environment"
elif [ -f ".env" ]; then
    # Try to get token from .env or session
    echo "ℹ️  Note: You may need to authenticate via the UI first"
    echo "   Or set API_TOKEN environment variable"
fi
echo ""

# Step 1: Clear all cache
echo "🗑️  Step 1: Clearing all cached data..."
CLEAR_RESPONSE=$(curl -s -X DELETE "$API_URL/cache/clear" \
    -H "Content-Type: application/json" \
    $AUTH_HEADER 2>&1)

if echo "$CLEAR_RESPONSE" | grep -q "cleared\|status"; then
    echo "✅ Cache cleared successfully"
else
    echo "⚠️  Clear response: $CLEAR_RESPONSE"
    echo "   This might indicate an authentication issue"
    echo ""
    read -p "Continue with sync anyway? (yes/no): " confirm
    if [ "$confirm" != "yes" ]; then
        echo "❌ Aborted."
        exit 1
    fi
fi
echo ""

# Step 2: Trigger full sync
echo "🔄 Step 2: Triggering full sync from Jira..."
SYNC_RESPONSE=$(curl -s -X POST "$API_URL/cache/sync" \
    -H "Content-Type: application/json" \
    $AUTH_HEADER 2>&1)

if echo "$SYNC_RESPONSE" | grep -q "started\|status"; then
    echo "✅ Full sync started in background"
    echo ""
    echo "📊 The sync is running in the background. You can monitor progress:"
    echo "   - Check cache status: curl $API_URL/cache/status"
    echo "   - View backend logs: docker-compose logs -f backend"
    echo "   - Or check the UI: $BACKEND_URL (Settings → Cache Management)"
else
    echo "⚠️  Sync response: $SYNC_RESPONSE"
    echo "   This might indicate an authentication issue or missing Jira credentials"
fi
echo ""

echo "✨ Reset and rebuild process initiated!"
echo ""
echo "Next steps:"
echo "1. Monitor sync progress via the UI or API"
echo "2. Wait for sync to complete (this may take several minutes)"
echo "3. Verify data in the UI or via: curl $API_URL/cache/status"
echo ""