#!/usr/bin/env python3
"""
데이터베이스 초기화 도구 (2개 DB)
1. kis_data_collection.db - KIS API 데이터 수집
2. snapshot_admin.db - 성능/포지션 관리
"""

import sqlite3
from pathlib import Path
from datetime import datetime

DB1_PATH = "src/quant_engine/kis_data_collection.db"
DB2_PATH = "src/quant_engine/snapshot_admin.db"

def create_kis_db():
    """kis_data_collection.db: KIS API 데이터 스키마"""
    conn = sqlite3.connect(DB1_PATH)
    cursor = conn.cursor()

    cursor.execute("""
        CREATE TABLE IF NOT EXISTS data_feed (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            ticker TEXT NOT NULL,
            name TEXT,
            close_price REAL,
            entry_price REAL,
            quantity INTEGER,
            stop_price REAL,
            target_price REAL,
            entry_stage TEXT,
            account TEXT,
            entry_date TEXT,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            velocity_1d REAL,
            velocity_5d REAL,
            ma20 REAL,
            atr20 REAL,
            rsi_14 REAL,
            volume INTEGER,
            avg_trade_value_5d REAL,
            sector TEXT,
            beta REAL,
            UNIQUE(ticker, entry_date)
        )
    """)

    cursor.execute("CREATE INDEX IF NOT EXISTS idx_data_feed_ticker ON data_feed(ticker)")
    cursor.execute("CREATE INDEX IF NOT EXISTS idx_data_feed_entry_date ON data_feed(entry_date)")

    conn.commit()
    conn.close()
    print(f"[OK] kis_data_collection.db: data_feed 테이블 생성")

def create_snapshot_admin_db():
    """snapshot_admin.db: 성능/포지션 스키마"""
    conn = sqlite3.connect(DB2_PATH)
    cursor = conn.cursor()

    cursor.execute("""
        CREATE TABLE IF NOT EXISTS performance (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            ticker TEXT NOT NULL,
            name TEXT,
            entry_date TEXT NOT NULL,
            entry_price REAL NOT NULL,
            quantity INTEGER,
            stop_price REAL,
            target_price REAL,
            exit_date TEXT,
            current_price REAL,
            pnl_pct REAL,
            status TEXT,
            t20_milestone TEXT,
            entry_stage TEXT,
            account TEXT,
            recorded_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
            UNIQUE(ticker, entry_date)
        )
    """)

    cursor.execute("""
        CREATE TABLE IF NOT EXISTS positions (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            ticker TEXT NOT NULL UNIQUE,
            name TEXT,
            quantity INTEGER,
            entry_price REAL,
            current_price REAL,
            average_cost REAL,
            sector TEXT,
            weight_pct REAL,
            updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
        )
    """)

    cursor.execute("CREATE INDEX IF NOT EXISTS idx_performance_ticker ON performance(ticker)")
    cursor.execute("CREATE INDEX IF NOT EXISTS idx_performance_entry_date ON performance(entry_date)")
    cursor.execute("CREATE INDEX IF NOT EXISTS idx_positions_ticker ON positions(ticker)")

    conn.commit()
    conn.close()
    print(f"[OK] snapshot_admin.db: performance, positions 테이블 생성")

def verify():
    """검증"""
    print("\n" + "="*80)
    print("데이터베이스 구조 확인")
    print("="*80)

    for db_path, db_name in [(DB1_PATH, "kis_data_collection.db"), (DB2_PATH, "snapshot_admin.db")]:
        conn = sqlite3.connect(db_path)
        cursor = conn.cursor()

        cursor.execute("SELECT name FROM sqlite_master WHERE type='table'")
        tables = [row[0] for row in cursor.fetchall()]

        file_size = Path(db_path).stat().st_size / 1024
        print(f"\n[{db_name}]")
        print(f"  크기: {file_size:.2f} KB")
        print(f"  테이블: {', '.join(tables)}")

        for table in tables:
            if table != 'sqlite_sequence':
                cursor.execute(f"SELECT COUNT(*) FROM {table}")
                row_count = cursor.fetchone()[0]
                cursor.execute(f"PRAGMA table_info({table})")
                col_count = len(cursor.fetchall())
                print(f"    - {table}: {col_count}개 컬럼, {row_count}개 행")

        conn.close()

if __name__ == "__main__":
    print("2개 데이터베이스 초기화 중...\n")

    create_kis_db()
    create_snapshot_admin_db()

    verify()

    print("\n[완료] 2개 DB 초기화 완료!")
    print(f"  1. kis_data_collection.db (KIS API)")
    print(f"  2. snapshot_admin.db (성능/포지션)")