"""配置管理模块，使用 pydantic-settings 从.env文件加载环境变量"""

from pydantic_settings import BaseSettings, SettingsConfigDict
from pydantic import Field
from typing import List


class AppSettings(BaseSettings):
    """应用配置类"""
    log_level: str = Field(default="INFO", alias="LOG_LEVEL")
    
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )

class ModelSettings(BaseSettings):
    """模型配置类"""
    model_provider: str = Field(default="openai", alias="MODEL_PROVIDER")
    model_name: str = Field(default="Qwen/Qwen3-VL-8B-Instruct", alias="MODEL_NAME")
    chat_model_name: str = Field(default="deepseek-ai/DeepSeek-V3.2", alias="CHAT_MODEL_NAME")
    embedding_model_name: str = Field(default="Qwen/Qwen3-Embedding-0.6B", alias="EMBEDDING_MODEL_NAME")
    base_url: str = Field(default="https://api.openai.com/v1", alias="BASE_URL")
    api_key: str = Field(default="", alias="API_KEY")
    rank_model_name: str = Field(default="Qwen/Qwen3-Reranker-0.6B", alias="RANK_MODEL_NAME")
    multimodal_embedding_model_name: str = Field(default="qwen2.5-vl-embedding", alias="MULTIMODAL_EMBEDDING_MODEL_NAME")
    dashscope_api_key: str = Field(default="", alias="DASHSCOPE_API_KEY")
    
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )

class RagflowSettings(BaseSettings):
    """RAGFLOW配置类"""
    ragflow_api_url: str = Field(default="http://192.168.16.134/", alias="RAGFLOW_API_URL")
    ragflow_api_key: str = Field(default="", alias="RAGFLOW_API_KEY")
    dataset_id: str = Field(default="", alias="DATASET_ID")
    ragflow_user_name: str = Field(default="", alias="RAGFLOW_USER_NAME")
    ragflow_passwd: str = Field(default="", alias="RAGFLOW_PASSWD")
    
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )

class MinioSettings(BaseSettings):
    """MinIO配置类"""
    minio_endpoint: str = Field(default="http://localhost:9000", alias="MINIO_ENDPOINT")
    minio_access_key: str = Field(default="minioadmin", alias="MINIO_ACCESS_KEY")
    minio_secret_key: str = Field(default="minioadmin", alias="MINIO_SECRET_KEY")
    minio_bucket_name: str = Field(default="ragflow", alias="MINIO_BUCKET_NAME")
    minio_secure: bool = Field(default=False, alias="MINIO_SECURE")
    
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )

class VectorDBSettings(BaseSettings):
    """向量数据库配置类"""
    vector_db_type: str = Field(default="es", alias="VECTOR_DB_TYPE")
    infinity_host: str = Field(default="192.168.16.134", alias="INFINITY_HOST")
    infinity_port: int = Field(default=23820, alias="INFINITY_PORT")
    infinity_sdk_port: int = Field(default=23817, alias="INFINITY_SDK_PORT")
    infinity_user: str = Field(default="admin", alias="INFINITY_USER")
    infinity_password: str = Field(default="admin", alias="INFINITY_PASSWORD")
    infinity_database: str = Field(default="test", alias="INFINITY_DATABASE")
    infinity_table_name: str = Field(default="test", alias="INFINITY_TABLE_NAME")
    infinity_page_dataset_id: str = Field(default="", alias="INFINITY_PAGE_DATASET_ID")
    infinity_page_table_name: str = Field(default="", alias="INFINITY_PAGE_TABLE_NAME")
    infinity_ragflow_database: str = Field(default="default_db", alias="INFINITY_RAGFLOW_DATABASE")
    infinity_dataset_prefix: str = Field(default="ragbook_", alias="INFINITY_DATASET_PREFIX")
    
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )

class MysqlSettings(BaseSettings):
    """MySQL配置类"""
    mysql_host: str = Field(default="localhost", alias="MYSQL_HOST")
    mysql_port: int = Field(default=3306, alias="MYSQL_PORT")
    mysql_user: str = Field(default="root", alias="MYSQL_USER")
    mysql_password: str = Field(default="", alias="MYSQL_PASSWORD")
    mysql_database: str = Field(default="", alias="MYSQL_DATABASE")
    mysql_charset: str = Field(default="utf8mb4", alias="MYSQL_CHARSET")
    mysql_pool_size: int = Field(default=10, alias="MYSQL_POOL_SIZE")

    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )


class TagSearchSettings(BaseSettings):
    """标签搜索配置类"""
    tag_db_name: str = Field(default="tag_db", alias="TAG_DB_NAME")
    tag_table_name: str = Field(default="tag_table", alias="TAG_TABLE_NAME")
    tag_document_id: str = Field(default="", alias="TAG_DOCUMENT_ID")
    tag_dataset_id: str = Field(default="", alias="TAG_DATASET_ID")
    
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )


class EsSettings(BaseSettings):
    """Elasticsearch配置类"""
    es_nodes: List[str] = Field(default=["http://localhost:9200"], alias="ES_NODES")
    es_username: str = Field(default="", alias="ES_USERNAME")
    es_password: str = Field(default="", alias="ES_PASSWORD")
    es_index_name: str = Field(default="rag_documents", alias="ES_INDEX_NAME")
    es_connections_per_node: int = Field(default=20, alias="ES_CONNECTIONS_PER_NODE")
    es_max_retries: int = Field(default=3, alias="ES_MAX_RETRIES")
    es_retry_on_timeout: bool = Field(default=True, alias="ES_RETRY_ON_TIMEOUT")
    es_timeout: int = Field(default=30, alias="ES_TIMEOUT")
    es_verify_certs: bool = Field(default=False, alias="ES_VERIFY_CERTS")
    
    model_config = SettingsConfigDict(
        env_file=".env",
        env_file_encoding="utf-8",
        case_sensitive=False,
        extra="ignore"
    )


# 创建配置实例
model_settings = ModelSettings()
ragflow_settings = RagflowSettings()
app_settings = AppSettings()
minio_settings = MinioSettings()
vector_db_settings = VectorDBSettings()
mysql_settings = MysqlSettings()
tag_search_settings = TagSearchSettings()
es_settings = EsSettings()