zai-rs 0.2.0

use std::sync::Arc;

use serde::{Deserialize, Serialize};
use validator::Validate;

use super::types::UploadUrlResponse;
use crate::{
    ZaiResult,
    client::{
        endpoints::{ApiBase, EndpointConfig, paths},
        http::{HttpClient, HttpClientConfig, parse_typed_response},
    },
};

/// Single URL upload detail
#[derive(Debug, Clone, Serialize, Deserialize, Validate)]
pub struct UploadUrlDetail {
    /// Source URL to fetch
    #[validate(url)]
    pub url: String,
    /// Slice type (integer)
    #[serde(skip_serializing_if = "Option::is_none")]
    pub knowledge_type: Option<i64>,
    /// Custom separators
    #[serde(skip_serializing_if = "Option::is_none")]
    pub custom_separator: Option<Vec<String>>,
    /// Sentence size
    #[serde(skip_serializing_if = "Option::is_none")]
    #[validate(range(min = 1))]
    pub sentence_size: Option<u32>,
    /// Callback URL
    #[serde(skip_serializing_if = "Option::is_none")]
    #[validate(url)]
    pub callback_url: Option<String>,
    /// Callback headers
    #[serde(skip_serializing_if = "Option::is_none")]
    pub callback_header: Option<std::collections::BTreeMap<String, String>>,
}

impl UploadUrlDetail {
    pub fn new(url: impl Into<String>) -> Self {
        Self {
            url: url.into(),
            knowledge_type: None,
            custom_separator: None,
            sentence_size: None,
            callback_url: None,
            callback_header: None,
        }
    }
    pub fn with_knowledge_type(mut self, t: i64) -> Self {
        self.knowledge_type = Some(t);
        self
    }
    pub fn with_custom_separator(mut self, seps: Vec<String>) -> Self {
        self.custom_separator = Some(seps);
        self
    }
    pub fn with_sentence_size(mut self, size: u32) -> Self {
        self.sentence_size = Some(size);
        self
    }
    pub fn with_callback_url(mut self, url: impl Into<String>) -> Self {
        self.callback_url = Some(url.into());
        self
    }
    pub fn with_callback_header(
        mut self,
        headers: std::collections::BTreeMap<String, String>,
    ) -> Self {
        self.callback_header = Some(headers);
        self
    }
}

/// Upload URL request body
#[derive(Debug, Clone, Serialize, Deserialize, Validate)]
pub struct UploadUrlBody {
    /// Upload detail list (at least 1)
    #[validate(length(min = 1))]
    pub upload_detail: Vec<UploadUrlDetail>,
    /// Knowledge base id
    #[validate(length(min = 1))]
    pub knowledge_id: String,
}

impl UploadUrlBody {
    pub fn new(knowledge_id: impl Into<String>) -> Self {
        Self {
            upload_detail: Vec::new(),
            knowledge_id: knowledge_id.into(),
        }
    }
    pub fn add_detail(mut self, detail: UploadUrlDetail) -> Self {
        self.upload_detail.push(detail);
        self
    }
    pub fn add_url(mut self, url: impl Into<String>) -> Self {
        self.upload_detail.push(UploadUrlDetail::new(url));
        self
    }
}

/// Upload URL request (POST /llm-application/open/document/upload_url)
pub struct DocumentUploadUrlRequest {
    /// Bearer API key
    pub key: String,
    url: String,
    endpoint_config: EndpointConfig,
    api_base: ApiBase,
    http_config: Arc<HttpClientConfig>,
    body: UploadUrlBody,
}

impl DocumentUploadUrlRequest {
    pub fn new(key: String, body: UploadUrlBody) -> Self {
        let endpoint_config = EndpointConfig::default();
        let api_base = ApiBase::LlmApplication;
        let url = endpoint_config.url(&api_base, paths::DOCUMENT_UPLOAD_URL);
        Self {
            key,
            url,
            endpoint_config,
            api_base,
            http_config: Arc::new(HttpClientConfig::default()),
            body,
        }
    }

    fn rebuild_url(&mut self) {
        self.url = self
            .endpoint_config
            .url(&self.api_base, paths::DOCUMENT_UPLOAD_URL);
    }

    pub fn with_base_url(mut self, base: impl Into<String>) -> Self {
        self.api_base = ApiBase::Custom(base.into());
        self.rebuild_url();
        self
    }

    pub fn with_endpoint_config(mut self, endpoint_config: EndpointConfig) -> Self {
        self.endpoint_config = endpoint_config;
        self.rebuild_url();
        self
    }

    pub fn with_http_config(mut self, config: HttpClientConfig) -> Self {
        self.http_config = Arc::new(config);
        self
    }

    pub fn body_mut(&mut self) -> &mut UploadUrlBody {
        &mut self.body
    }

    /// Validate and send
    pub async fn send(&self) -> ZaiResult<UploadUrlResponse> {
        self.body.validate()?;
        let resp = self.post().await?;
        let parsed = parse_typed_response::<UploadUrlResponse>(resp).await?;
        Ok(parsed)
    }
}

impl HttpClient for DocumentUploadUrlRequest {
    type Body = UploadUrlBody;
    type ApiUrl = String;
    type ApiKey = String;

    fn api_url(&self) -> &Self::ApiUrl {
        &self.url
    }
    fn api_key(&self) -> &Self::ApiKey {
        &self.key
    }
    fn body(&self) -> &Self::Body {
        &self.body
    }

    fn http_config(&self) -> Arc<HttpClientConfig> {
        Arc::clone(&self.http_config)
    }
}