package cli

import (
	"strings"
	"testing"

	"github.com/Gitlawb/zero/internal/config"
	"github.com/Gitlawb/zero/internal/provideronboarding"
	"mvdan.cc/sh/v3/shell"
)

// Regression for issue #555's follow-up: `zero providers check` must not
// error that a no-auth custom endpoint requires an API key, matching what
// /model and /providers already treat as usable.
func TestValidateProviderRuntimeReadyCustomEndpoint(t *testing.T) {
	cases := []struct {
		name    string
		profile config.ProviderProfile
		wantErr bool
	}{
		{
			name: "custom openai compatible with no credential configured",
			profile: config.ProviderProfile{
				Name:      "local-llama",
				CatalogID: "custom-openai-compatible",
				BaseURL:   "http://192.168.1.50:8080/v1",
				Model:     "custom-model",
			},
			wantErr: false,
		},
		{
			name: "custom openai compatible with stale legacy default env",
			profile: config.ProviderProfile{
				Name:      "local-llama",
				CatalogID: "custom-openai-compatible",
				BaseURL:   "http://192.168.1.50:8080/v1",
				APIKeyEnv: "OPENAI_API_KEY",
				Model:     "custom-model",
			},
			wantErr: false,
		},
		{
			name: "custom openai compatible with explicit non-default env still requires it",
			profile: config.ProviderProfile{
				Name:      "local-llama",
				CatalogID: "custom-openai-compatible",
				BaseURL:   "http://192.168.1.50:8080/v1",
				APIKeyEnv: "LLAMA_CPP_API_KEY",
				Model:     "custom-model",
			},
			wantErr: true,
		},
		{
			name: "catalog provider missing key still errors",
			profile: config.ProviderProfile{
				Name:      "groq",
				CatalogID: "groq",
				Model:     "llama-3.3-70b-versatile",
			},
			wantErr: true,
		},
	}
	for _, c := range cases {
		t.Run(c.name, func(t *testing.T) {
			err := validateProviderRuntimeReady(c.profile)
			if (err != nil) != c.wantErr {
				t.Fatalf("validateProviderRuntimeReady() error = %v, wantErr %v", err, c.wantErr)
			}
		})
	}
}

// atomic-chat-local without --model would persist the catalog placeholder
// "local-model", which the Atomic Chat server never serves, so the first
// completion fails. Adding it must require a real model instead.
func TestProviderProfileForAddRequiresModelForAtomicChatLocal(t *testing.T) {
	if _, err := providerProfileForAdd(providerAddOptions{catalogID: "atomic-chat-local"}); err == nil {
		t.Fatalf("providerProfileForAdd(atomic-chat-local, no --model) = nil error, want a require-model error")
	} else if !strings.Contains(err.Error(), "--model") {
		t.Fatalf("error should tell the user to pass --model, got %v", err)
	}

	// The interactive wizards and the no-id detect fallback resolve the model to
	// the catalog DefaultModel and pass it through as a non-empty value, so the
	// placeholder itself must be rejected, not just an empty --model.
	if _, err := providerProfileForAdd(providerAddOptions{catalogID: "atomic-chat-local", model: "local-model"}); err == nil {
		t.Fatalf("providerProfileForAdd(atomic-chat-local, --model local-model) = nil error, want reject of the catalog placeholder")
	}

	profile, err := providerProfileForAdd(providerAddOptions{catalogID: "atomic-chat-local", model: "unsloth/gemma-4-E2B-it-GGUF"})
	if err != nil {
		t.Fatalf("providerProfileForAdd(atomic-chat-local, --model) returned error: %v", err)
	}
	if profile.Model != "unsloth/gemma-4-E2B-it-GGUF" {
		t.Fatalf("profile.Model = %q, want the explicit model", profile.Model)
	}
	if profile.Model == "local-model" {
		t.Fatalf("profile persisted the catalog placeholder")
	}
}

func TestDetectedModelActionSurvivesAddParser(t *testing.T) {
	for _, catalogID := range []string{"atomic-chat-local", "lmstudio", "ollama"} {
		for _, modelID := range []string{"-loaded-model", "--set-active", "--model", "-loaded model", "ordinary/model", "model with spaces"} {
			t.Run(catalogID+"/"+modelID, func(t *testing.T) {
				detected := provideronboarding.DetectedLocalRuntime{
					LocalRuntime: provideronboarding.LocalRuntime{CatalogID: catalogID, Name: "Local Runtime", DefaultModel: "local-model"},
					Models:       []string{modelID},
				}
				command := detected.SetupAction().Command
				args, err := shell.Fields(command, func(string) string { return "" })
				if err != nil || len(args) < 4 {
					t.Fatalf("invalid adoption command %q: %v", command, err)
				}
				options, help, err := parseProviderAddArgs(args[3:])
				if err != nil || help {
					t.Fatalf("generated adoption command rejected by add parser: %q: %v", command, err)
				}
				profile, err := providerProfileForAdd(options)
				if err != nil || profile.Model != modelID || !options.setActive || profile.Name != "Local Runtime" {
					t.Fatalf("adoption changed model or options: model=%q name=%q active=%v err=%v", profile.Model, profile.Name, options.setActive, err)
				}
			})
		}
	}
}