"""sqlite 测试 DDL 单一事实源（B8 · B4 评审 P3-12 收敛 / B5 评审 P3-4 时区）。

以 VARCHAR/TEXT/INTEGER/REAL 近似 MySQL 的 ENUM/SMALLINT/JSON/DECIMAL，
枚举防线不在测试 DB 层（由 service 白名单保证，见 test_profile_l3 口径注释）。
时间默认值统一 `(datetime('now','localtime'))`：sqlite CURRENT_TIMESTAMP 为 UTC，
本地 23:00~24:00 跑测试时与 MySQL localtime 口径错位一个日界（B5 评审 P3-4）。
列集为各测试所需列的并集；新表/新列只改此处，禁止再回测试文件手写。
"""

from sqlalchemy import create_engine, text
from sqlalchemy.pool import StaticPool

_TS = "TIMESTAMP DEFAULT (datetime('now','localtime'))"

SQLITE_TABLES: dict[str, str] = {
    # ---- Core 模拟库（只读侧） ----
    "core_customer": """
        CREATE TABLE core_customer (
            customer_id VARCHAR(64) PRIMARY KEY, display_name VARCHAR(128), age INTEGER,
            occupation VARCHAR(64), open_date DATE, is_active TINYINT DEFAULT 1)
    """,
    "core_customer_risk": """
        CREATE TABLE core_customer_risk (
            customer_id VARCHAR(64), risk_code VARCHAR(8), evaluated_at TIMESTAMP)
    """,
    "core_customer_advisor": """
        CREATE TABLE core_customer_advisor (
            advisor_id VARCHAR(64), customer_id VARCHAR(64), rel_status VARCHAR(16))
    """,
    "core_product": """
        CREATE TABLE core_product (
            product_id VARCHAR(64) PRIMARY KEY, product_name VARCHAR(128),
            min_risk_code VARCHAR(8), product_type VARCHAR(32))
    """,
    "core_holding": """
        CREATE TABLE core_holding (
            customer_id VARCHAR(64), product_id VARCHAR(64),
            market_value DECIMAL, quantity DECIMAL)
    """,
    "core_trade": """
        CREATE TABLE core_trade (
            trade_id VARCHAR(64) PRIMARY KEY, customer_id VARCHAR(64), product_id VARCHAR(64),
            trade_type VARCHAR(16), amount DECIMAL, trade_status VARCHAR(16),
            traded_at TIMESTAMP)
    """,
    # ---- agent 库 ----
    "audit_log": f"""
        CREATE TABLE audit_log (
            id INTEGER PRIMARY KEY AUTOINCREMENT, trace_id VARCHAR(64), event_type VARCHAR(64),
            agent_type VARCHAR(16), actor_id VARCHAR(64), customer_id VARCHAR(64),
            rule_id VARCHAR(64), input_summary TEXT, decision VARCHAR(64), risk_score INTEGER,
            handler_id VARCHAR(64), handler_result VARCHAR(64), handler_comment VARCHAR(512),
            created_at {_TS})
    """,
    "input_guard_log": f"""
        CREATE TABLE input_guard_log (
            id INTEGER PRIMARY KEY AUTOINCREMENT, trace_id VARCHAR(64), session_id VARCHAR(64),
            agent_type VARCHAR(16), actor_id VARCHAR(64), guard_type VARCHAR(24),
            raw_excerpt VARCHAR(1024), action VARCHAR(16),
            created_at {_TS})
    """,
    "agent_session": f"""
        CREATE TABLE agent_session (
            id INTEGER PRIMARY KEY AUTOINCREMENT, session_id VARCHAR(64) UNIQUE,
            trace_id VARCHAR(64), agent_type VARCHAR(16), actor_id VARCHAR(64),
            actor_role VARCHAR(32), customer_id VARCHAR(64), advisor_id VARCHAR(64),
            title VARCHAR(256), status VARCHAR(16) DEFAULT 'active',
            created_at {_TS}, closed_at TIMESTAMP)
    """,
    "agent_message": f"""
        CREATE TABLE agent_message (
            id INTEGER PRIMARY KEY AUTOINCREMENT, session_id VARCHAR(64),
            trace_id VARCHAR(64), seq_no INTEGER, role VARCHAR(16),
            content TEXT, has_disclaimer TINYINT DEFAULT 0, token_est INTEGER,
            created_at {_TS})
    """,
    "agent_tool_call": f"""
        CREATE TABLE agent_tool_call (
            id INTEGER PRIMARY KEY AUTOINCREMENT, session_id VARCHAR(64),
            trace_id VARCHAR(64), message_id INTEGER, tool_name VARCHAR(128),
            tool_input TEXT, tool_output TEXT, status VARCHAR(16),
            error_code VARCHAR(64), latency_ms INTEGER,
            created_at {_TS})
    """,
    "risk_alert": f"""
        CREATE TABLE risk_alert (
            alert_id VARCHAR(64) PRIMARY KEY, trace_id VARCHAR(64), customer_id VARCHAR(64),
            trade_id VARCHAR(64), alert_type VARCHAR(16), triggered_rules TEXT,
            risk_score INTEGER, status VARCHAR(24) DEFAULT 'pending_review', payload TEXT,
            handler_id VARCHAR(64), handler_result VARCHAR(64), handler_comment VARCHAR(512),
            created_at {_TS}, handled_at TIMESTAMP)
    """,
    "risk_suitability_log": f"""
        CREATE TABLE risk_suitability_log (
            id INTEGER PRIMARY KEY AUTOINCREMENT, trace_id VARCHAR(64), customer_id VARCHAR(64),
            product_id VARCHAR(64), customer_risk_level VARCHAR(8), product_risk_level VARCHAR(8),
            is_matched TINYINT, is_blocked TINYINT, block_reason VARCHAR(512),
            request_ref VARCHAR(64), profile_l1_version VARCHAR(32),
            created_at {_TS})
    """,
    "customer_profile_l3": f"""
        CREATE TABLE customer_profile_l3 (
            customer_id VARCHAR(64) PRIMARY KEY, monitor_tier VARCHAR(16) NOT NULL,
            risk_score INTEGER, score_dimensions TEXT, monitor_tags TEXT,
            last_alert_id VARCHAR(64), computed_at TIMESTAMP NOT NULL,
            updated_at {_TS})
    """,
    "risk_aml_list": f"""
        CREATE TABLE risk_aml_list (
            id INTEGER PRIMARY KEY AUTOINCREMENT, list_id VARCHAR(64), list_type VARCHAR(16),
            full_name VARCHAR(128), id_no VARCHAR(32), bank_card_no VARCHAR(32),
            match_threshold REAL, source VARCHAR(64), list_version VARCHAR(16),
            effective_date DATE, is_active TINYINT DEFAULT 1, created_at {_TS})
    """,
}


def create_sqlite_engine():
    """内存 sqlite + 全部表（StaticPool 单连接共享，同现有测试模式）。"""
    engine = create_engine(
        "sqlite://", poolclass=StaticPool, connect_args={"check_same_thread": False}
    )
    with engine.begin() as conn:
        for ddl in SQLITE_TABLES.values():
            conn.execute(text(ddl))
    return engine