# -*- coding: utf-8 -*-
"""系统配置：MySQL、Neo4j、JWT、Celery、大模型"""
import os


class Settings:
    API_V1_PREFIX: str = "/api/v1"
    # 使用 maple@localhost:3306，密码 123456，数据库 ai_system
    MYSQL_URI: str = os.getenv("MYSQL_URI", "mysql+pymysql://maple:123456@localhost:3306/ai_system")
    NEO4J_URI: str = os.getenv("NEO4J_URI", "neo4j://localhost:7687")
    NEO4J_USER: str = os.getenv("NEO4J_USER", "neo4j")
    NEO4J_PASSWORD: str = os.getenv("NEO4J_PASSWORD", "12345678")
    JWT_SECRET_KEY: str = os.getenv("JWT_SECRET_KEY", "dev-jwt-secret-change-in-production")
    JWT_ALGORITHM: str = "HS256"
    # 将访问令牌有效期收紧为 4 小时，减少长时间挂着不退出带来的风险
    JWT_ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 4
    CELERY_BROKER_URL: str = os.getenv("CELERY_BROKER_URL", "redis://localhost:6379/0")
    CELERY_RESULT_BACKEND: str = os.getenv("CELERY_RESULT_BACKEND", "redis://localhost:6379/0")
    # 大模型：默认直连 DeepSeek OpenAI 兼容接口，环境变量可覆盖
    LLM_PROVIDER: str = os.getenv("LLM_PROVIDER", "deepseek")
    # TODO：DeepSeek API Key
    LLM_API_KEY: str = os.getenv("LLM_API_KEY", "sk-50497a43a04e4a7db3af2e8437445658")
    LLM_BASE_URL: str = os.getenv("LLM_BASE_URL", "https://api.deepseek.com")
    TTS_API_URL: str = os.getenv("TTS_API_URL", "")
    ASR_API_URL: str = os.getenv("ASR_API_URL", "")
    # 百度语音合成（TTS）配置：可通过环境变量覆盖，未设置时使用当前开发测试的默认值
    BAIDU_TTS_APP_ID: str = os.getenv("BAIDU_TTS_APP_ID", "7498032")
    BAIDU_TTS_API_KEY: str = os.getenv("BAIDU_TTS_API_KEY", "sZCf8uTlvsyyHFBlfl7beIKS")
    BAIDU_TTS_SECRET_KEY: str = os.getenv("BAIDU_TTS_SECRET_KEY", "5swdYUeDAHxVXwG3O1kGcTlEoOXJoXA4")


def get_settings() -> Settings:
    return Settings()