"""config 子命令：显示配置、列出 profile、设置配置项。"""
from __future__ import annotations

import argparse
import configparser
import os


def cmd_config(args: argparse.Namespace, client=None) -> None:
    """配置管理命令。"""
    action = getattr(args, "config_action", None)
    if action == "show":
        _config_show(args)
    elif action == "list-profiles":
        _config_list_profiles(args)
    elif action == "set":
        _config_set(args)
    else:
        print("  用法: sap-cli config [show|list-profiles|set]")


def _config_show(args: argparse.Namespace) -> None:
    """显示当前配置。"""
    from sapcli.config import load_config

    config_path = getattr(args, "config", None)

    try:
        cfg, loaded_from = load_config(config_path)
    except Exception as e:
        print(f"  ✗ 加载配置失败: {e}")
        return

    print("=" * 60)
    print("  sap-cli 当前配置")
    print("=" * 60)
    if loaded_from:
        print(f"  配置文件: {loaded_from}")
    print(f"  主机: {cfg.host}")
    print(f"  Client: {cfg.client}")
    print(f"  用户: {cfg.user}")
    print(f"  密码: {'***' if cfg.password else '(未设置)'}")


def _config_list_profiles(args: argparse.Namespace) -> None:
    """列出所有可用的 profile。"""
    config_path = getattr(args, "config", None)
    if config_path is None:
        config_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "..", "config.ini")

    print("=" * 60)
    print("  sap-cli 可用 profile")
    print("=" * 60)

    if not os.path.isfile(config_path):
        print("  (无配置文件)")
        return

    parser = configparser.ConfigParser()
    parser.read(config_path, encoding="utf-8")
    sections = parser.sections()
    if not sections:
        print("  (无 profile)")
    for name in sections:
        active = " (默认)" if name == "SAP" else ""
        print(f"  - {name}{active}")

    print(f"\n  配置文件: {config_path}")


def _config_set(args: argparse.Namespace) -> None:
    """设置配置项到 config.ini。"""
    key = getattr(args, "key", None)
    value = getattr(args, "value", None)
    profile = getattr(args, "profile", None) or "SAP"

    if not key or not value:
        print("  ✗ 用法: sap-cli config set <key> <value>")
        print("  可设置的 key: host, client, user, password")
        return

    valid_keys = {"host", "client", "user", "password"}
    if key not in valid_keys:
        print(f"  ✗ 不支持的配置项: {key}")
        print(f"  可设置的 key: {', '.join(sorted(valid_keys))}")
        return

    # 找到或创建 config.ini
    config_path = getattr(args, "config", None)
    if not config_path:
        config_path = os.path.join(os.getcwd(), "config.ini")

    parser = configparser.ConfigParser()
    if os.path.isfile(config_path):
        parser.read(config_path, encoding="utf-8")

    if not parser.has_section(profile):
        parser.add_section(profile)

    parser.set(profile, key, value)

    with open(config_path, "w", encoding="utf-8") as f:
        parser.write(f)

    print(f"  ✓ 已设置 [{profile}] {key} = {'***' if key == 'password' else value}")
    print(f"  配置文件: {config_path}")