package classification

import (
	"context"
	"net/http"
	"net/http/httptest"
	"testing"
)

// The dropdown must offer only models a fail-closed request can actually
// route to: live ZDR endpoints with strict structured outputs, deduplicated
// across providers, in stable order.
func TestVerifiedModelsFilterDedupeAndOrder(t *testing.T) {
	catalog := `{"data":[
		{"model_id":"openai/gpt-5.6-luna","model_name":"GPT-5.6 Luna","status":-2,"supported_parameters":["response_format","structured_outputs"]},
		{"model_id":"z-ai/glm-5.3","model_name":"GLM 5.3","status":0,"supported_parameters":["response_format","structured_outputs"]},
		{"model_id":"anthropic/claude-sonnet-5","model_name":"Claude Sonnet 5","status":0,"supported_parameters":["response_format","structured_outputs"]},
		{"model_id":"anthropic/claude-sonnet-5","model_name":"Claude Sonnet 5 (dup)","status":0,"supported_parameters":["response_format","structured_outputs"]},
		{"model_id":"amazon/titan","model_name":"Titan","status":0,"supported_parameters":["response_format"]},
		{"model_id":"","model_name":"nameless","status":0,"supported_parameters":["response_format","structured_outputs"]}
	]}`
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path != "/endpoints/zdr" {
			t.Errorf("unexpected path %s", r.URL.Path)
			w.WriteHeader(404)
			return
		}
		if r.Header.Get("Authorization") != "" {
			t.Error("credential attached to a public catalog request")
		}
		w.Write([]byte(catalog))
	}))
	defer server.Close()
	c := &Client{BaseURL: server.URL, HTTPClient: server.Client()}
	models, err := c.VerifiedModels(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	if len(models) != 2 ||
		models[0] != (VerifiedModel{ID: "anthropic/claude-sonnet-5", Name: "Claude Sonnet 5"}) ||
		models[1] != (VerifiedModel{ID: "z-ai/glm-5.3", Name: "GLM 5.3"}) {
		t.Fatalf("wrong verified list: %+v", models)
	}
}

func TestVerifiedModelsUnavailableCatalogFailsClosed(t *testing.T) {
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.WriteHeader(http.StatusBadGateway)
	}))
	defer server.Close()
	c := &Client{BaseURL: server.URL, HTTPClient: server.Client()}
	if _, err := c.VerifiedModels(context.Background()); err == nil {
		t.Fatal("unavailable catalog must not produce an empty verified list")
	}
}