// Code scaffolded by goctl. Safe to edit.
// goctl 1.10.1

package chat

import (
	"encoding/json"
	"io"
	"net/http"

	"cursor-api-proxy/internal/logic/chat"
	"cursor-api-proxy/internal/svc"
	"cursor-api-proxy/internal/types"

	"cursor-api-proxy/pkg/infrastructure/httputil"
)

func ChatCompletionsHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		// Read raw body first
		rawBody, err := io.ReadAll(r.Body)
		if err != nil {
			httputil.WriteJSON(w, 400, map[string]interface{}{
				"error": map[string]string{"message": "failed to read body", "code": "bad_request"},
			}, nil)
			return
		}

		var req types.ChatCompletionRequest
		if err := json.Unmarshal(rawBody, &req); err != nil {
			httputil.WriteJSON(w, 400, map[string]interface{}{
				"error": map[string]string{"message": "invalid JSON body", "code": "bad_request"},
			}, nil)
			return
		}

		l := chat.NewChatCompletionsLogic(r.Context(), svcCtx)
		if req.Stream {
			w.Header().Set("Content-Type", "text/event-stream")
			w.Header().Set("Cache-Control", "no-cache")
			w.Header().Set("Connection", "keep-alive")
			w.Header().Set("X-Accel-Buffering", "no")
			_ = l.ChatCompletionsStream(&req, w, r.Method, r.URL.Path)
		} else {
			resp, err := l.ChatCompletions(&req)
			if err != nil {
				httputil.WriteJSON(w, 500, map[string]interface{}{
					"error": map[string]string{"message": err.Error(), "code": "internal_error"},
				}, nil)
			} else {
				httputil.WriteJSON(w, 200, resp, nil)
			}
		}
	}
}