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100 lines
2.2 KiB
100 lines
2.2 KiB
package tavilysearch
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"time"
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)
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// newSys 创建 Tavily 搜索系统对象
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// 参数:
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// - options: 系统选项
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//
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// 返回值:
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// - sys: 系统对象指针
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// - err: 创建过程中的错误
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//
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// 异常:
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// - 无（最小实现，仅进行结构体初始化）
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func newSys(options Options) (sys *TavilySearch, err error) {
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sys = &TavilySearch{
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options: options,
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httpClient: &http.Client{Timeout: 30 * time.Second},
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}
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return
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}
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type TavilySearch struct {
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options Options
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httpClient *http.Client
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}
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// Search 执行网页搜索（最小实现）
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// 参数:
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// - ctx: 上下文
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// - query: 搜索关键词
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// - count: 返回条数
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// - offset: 偏移量（保留，不参与）
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//
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// 返回值:
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// - result: TavilyResponse 最小结构
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// - err: 调用过程中的错误
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//
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// 异常:
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// - 当 API Key 未配置、网络请求失败或解析失败时返回错误
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func (this *TavilySearch) Search(ctx context.Context, query string, count, offset int) (result *TavilyResponse, err error) {
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if this.options.ApiKey == "" {
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err = fmt.Errorf("tavily api key is empty")
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return
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}
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apiURL := "https://api.tavily.com/search"
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// 创建请求体
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requestBody := map[string]interface{}{
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"query": query,
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"max_results": count,
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"search_depth": defaultDepth(this.options.SearchDepth),
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}
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// 序列化请求体
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jsonData, err := json.Marshal(requestBody)
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if err != nil {
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return
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}
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// 创建HTTP请求
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, apiURL, bytes.NewBuffer(jsonData))
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if err != nil {
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return
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}
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// 设置请求头
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("Authorization", "Bearer "+this.options.ApiKey)
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// 发送请求
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resp, err := this.httpClient.Do(req)
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if err != nil {
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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err = fmt.Errorf("tavily http status %d", resp.StatusCode)
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return
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}
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result = &TavilyResponse{}
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if err = json.NewDecoder(resp.Body).Decode(result); err != nil {
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return
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}
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return
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}
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func defaultDepth(v string) string {
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if v == "advanced" {
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return "advanced"
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}
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return "basic"
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}
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