package proxy

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

	"llm-gateway/internal/provider"
)

type ModelsHandler struct {
	registry *provider.Registry
}

func NewModelsHandler(registry *provider.Registry) *ModelsHandler {
	return &ModelsHandler{registry: registry}
}

func (h *ModelsHandler) ListModels(w http.ResponseWriter, r *http.Request) {
	names := h.registry.ModelNames()
	models := make([]map[string]any, len(names))
	for i, name := range names {
		models[i] = map[string]any{
			"id":       name,
			"object":   "model",
			"created":  time.Now().Unix(),
			"owned_by": "llm-gateway",
		}
	}

	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(map[string]any{
		"object": "list",
		"data":   models,
	})
}