package client

import (
	"testing"
)

func TestModelfileConfig(t *testing.T) {
	// Test that ModelfileConfig struct works as expected
	config := &ModelfileConfig{
		Template: "{{ .Prompt }}",
		System:   "You are a helpful assistant.",
		License:  "MIT",
	}

	if config.Template != "{{ .Prompt }}" {
		t.Errorf("Template = %q, want %q", config.Template, "{{ .Prompt }}")
	}
	if config.System != "You are a helpful assistant." {
		t.Errorf("System = %q, want %q", config.System, "You are a helpful assistant.")
	}
	if config.License != "MIT" {
		t.Errorf("License = %q, want %q", config.License, "MIT")
	}
}

func TestModelfileConfig_Empty(t *testing.T) {
	config := &ModelfileConfig{}

	if config.Template != "" {
		t.Errorf("Template should be empty, got %q", config.Template)
	}
	if config.System != "" {
		t.Errorf("System should be empty, got %q", config.System)
	}
	if config.License != "" {
		t.Errorf("License should be empty, got %q", config.License)
	}
}

func TestModelfileConfig_PartialFields(t *testing.T) {
	// Test config with only some fields set
	config := &ModelfileConfig{
		Template: "{{ .Prompt }}",
		// System and License intentionally empty
	}

	if config.Template == "" {
		t.Error("Template should not be empty")
	}
	if config.System != "" {
		t.Error("System should be empty")
	}
	if config.License != "" {
		t.Error("License should be empty")
	}
}

func TestMinOllamaVersion(t *testing.T) {
	// Verify the minimum version constant is set
	if MinOllamaVersion == "" {
		t.Error("MinOllamaVersion should not be empty")
	}
	if MinOllamaVersion != "0.14.0" {
		t.Errorf("MinOllamaVersion = %q, want %q", MinOllamaVersion, "0.14.0")
	}
}

func TestCreateModel_InvalidDir(t *testing.T) {
	// Test that CreateModel returns error for invalid directory
	err := CreateModel(CreateOptions{
		ModelName: "test-model",
		ModelDir:  "/nonexistent/path",
	}, nil)
	if err == nil {
		t.Error("expected error for nonexistent directory, got nil")
	}
}

func TestCreateModel_NotSafetensorsDir(t *testing.T) {
	// Test that CreateModel returns error for directory without safetensors
	dir := t.TempDir()

	err := CreateModel(CreateOptions{
		ModelName: "test-model",
		ModelDir:  dir,
	}, nil)
	if err == nil {
		t.Error("expected error for empty directory, got nil")
	}
}

func TestCreateOptions(t *testing.T) {
	opts := CreateOptions{
		ModelName: "my-model",
		ModelDir:  "/path/to/model",
		Quantize:  "fp8",
		Modelfile: &ModelfileConfig{
			Template: "test",
			System:   "system",
			License:  "MIT",
		},
	}

	if opts.ModelName != "my-model" {
		t.Errorf("ModelName = %q, want %q", opts.ModelName, "my-model")
	}
	if opts.ModelDir != "/path/to/model" {
		t.Errorf("ModelDir = %q, want %q", opts.ModelDir, "/path/to/model")
	}
	if opts.Quantize != "fp8" {
		t.Errorf("Quantize = %q, want %q", opts.Quantize, "fp8")
	}
	if opts.Modelfile == nil {
		t.Error("Modelfile should not be nil")
	}
	if opts.Modelfile.Template != "test" {
		t.Errorf("Modelfile.Template = %q, want %q", opts.Modelfile.Template, "test")
	}
}

func TestCreateOptions_Defaults(t *testing.T) {
	opts := CreateOptions{
		ModelName: "test",
		ModelDir:  "/tmp",
	}

	// Quantize should default to empty
	if opts.Quantize != "" {
		t.Errorf("Quantize should be empty by default, got %q", opts.Quantize)
	}

	// Modelfile should default to nil
	if opts.Modelfile != nil {
		t.Error("Modelfile should be nil by default")
	}
}

func TestQuantizeSupported(t *testing.T) {
	// This just verifies the function exists and returns a boolean
	// The actual value depends on build tags (mlx vs non-mlx)
	supported := QuantizeSupported()

	// In non-mlx builds, this should be false
	// We can't easily test both cases, so just verify it returns something
	_ = supported
}