#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Delete all journal entries with "逆仕訳" in description
"""
import sys
sys.path.insert(0, '/app')

from app.core.database import get_connection

def delete_reverse_entries():
    with get_connection() as conn:
        with conn.cursor() as cur:
            print("=" * 80)
            print("【「逆仕訳」データの削除（外键制約を考慮）】")
            print("=" * 80)
            print()
            
            # Step 1: Find and list all entries with "逆仕訳"
            print("【ステップ1: 削除対象データを検索】")
            cur.execute("""
                SELECT 
                    journal_entry_id,
                    description,
                    entry_date,
                    is_latest
                FROM journal_entries
                WHERE description LIKE '%逆仕訳%'
                AND is_deleted = false
                ORDER BY journal_entry_id
            """)
            
            reverse_entries = cur.fetchall()
            print(f"「逆仕訳」が含まれるレコード: {len(reverse_entries)} 件")
            
            if len(reverse_entries) == 0:
                print("削除対象のレコードがありません")
                return
            
            ids_to_delete = [e['journal_entry_id'] for e in reverse_entries]
            
            # Step 2: Check for references
            print()
            print("【ステップ2: 外键参照をチェック】")
            
            cur.execute("""
                SELECT DISTINCT parent_entry_id, COUNT(*) as count
                FROM journal_entries
                WHERE parent_entry_id = ANY(%s)
                AND is_deleted = false
                GROUP BY parent_entry_id
            """, (ids_to_delete,))
            
            refs = cur.fetchall()
            if refs:
                print(f"参照されているレコード:")
                for ref in refs:
                    print(f"  ID={ref['parent_entry_id']}: {ref['count']} 個の子レコード")
            
            # Step 3: Handle references by clearing parent_entry_id
            print()
            print("【ステップ3: 参照をクリア】")
            
            cur.execute("""
                UPDATE journal_entries
                SET parent_entry_id = NULL
                WHERE parent_entry_id = ANY(%s)
            """, (ids_to_delete,))
            
            cleared = cur.rowcount
            print(f"クリアされたレコード: {cleared} 件")
            
            # Step 4: Delete journal_lines
            print()
            print("【ステップ4: ジャーナル行を削除】")
            
            cur.execute("DELETE FROM journal_lines WHERE journal_entry_id = ANY(%s)", (ids_to_delete,))
            lines_deleted = cur.rowcount
            print(f"削除されたジャーナル行: {lines_deleted} 行")
            
            # Step 5: Delete journal_entries
            print()
            print("【ステップ5: ジャーナルエントリを削除】")
            
            cur.execute("DELETE FROM journal_entries WHERE journal_entry_id = ANY(%s)", (ids_to_delete,))
            entries_deleted = cur.rowcount
            print(f"削除されたジャーナルエントリ: {entries_deleted} 件")
            
            conn.commit()
            
            # Step 6: Statistics
            print()
            print("【ステップ6: 削除後の統計】")
            
            cur.execute("SELECT COUNT(*) FROM journal_entries WHERE is_deleted = false")
            total = cur.fetchone()['count']
            print(f"総レコード数: {total}")
            
            cur.execute("SELECT COUNT(*) FROM journal_entries WHERE is_deleted = false AND is_latest = true")
            latest = cur.fetchone()['count']
            print(f"  is_latest=true: {latest}")
            
            cur.execute("SELECT COUNT(*) FROM journal_entries WHERE is_deleted = false AND is_latest = false")
            old = cur.fetchone()['count']
            print(f"  is_latest=false: {old}")
            
            # Step 7: Verify 2025年6月 sales revenue
            print()
            print("【ステップ7: 2025年6月の売上高を再確認】")
            
            cur.execute("""
                SELECT 
                    SUM(l.debit) as total_debit,
                    SUM(l.credit) as total_credit
                FROM journal_lines l
                JOIN journal_entries j ON j.journal_entry_id = l.journal_entry_id
                JOIN accounts a ON a.account_id = l.account_id
                WHERE a.account_code = '701'
                AND EXTRACT(YEAR FROM j.entry_date) = 2025
                AND EXTRACT(MONTH FROM j.entry_date) = 6
                AND j.is_deleted = false
                AND j.is_latest = true
            """)
            
            result = cur.fetchone()
            print(f"2025年6月 売上高（最新版のみ）:")
            print(f"  借方: {result['total_debit']:>12,.0f}")
            print(f"  貸方: {result['total_credit']:>12,.0f}")
            
            print()
            print("✓ 削除完了")

if __name__ == "__main__":
    try:
        delete_reverse_entries()
    except Exception as e:
        print(f"エラー: {e}")
        import traceback
        traceback.print_exc()
        sys.exit(1)