package proxy

import (
	"os"
	"path/filepath"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestLoadConfig(t *testing.T) {
	// Create a temporary YAML file for testing
	tempDir, err := os.MkdirTemp("", "test-config")
	if err != nil {
		t.Fatalf("Failed to create temporary directory: %v", err)
	}
	defer os.RemoveAll(tempDir)

	tempFile := filepath.Join(tempDir, "config.yaml")
	content := `models:
  model1:
    cmd: path/to/cmd --arg1 one
    proxy: "http://localhost:8080"
    aliases:
      - "m1"
      - "model-one"
    env:
      - "VAR1=value1"
      - "VAR2=value2"
    checkEndpoint: "/health"
healthCheckTimeout: 15
`

	if err := os.WriteFile(tempFile, []byte(content), 0644); err != nil {
		t.Fatalf("Failed to write temporary file: %v", err)
	}

	// Load the config and verify
	config, err := LoadConfig(tempFile)
	if err != nil {
		t.Fatalf("Failed to load config: %v", err)
	}

	expected := &Config{
		Models: map[string]ModelConfig{
			"model1": {
				Cmd:           "path/to/cmd --arg1 one",
				Proxy:         "http://localhost:8080",
				Aliases:       []string{"m1", "model-one"},
				Env:           []string{"VAR1=value1", "VAR2=value2"},
				CheckEndpoint: "/health",
			},
		},
		HealthCheckTimeout: 15,
	}

	assert.Equal(t, expected, config)
}

func TestModelConfigSanitizedCommand(t *testing.T) {
	config := &ModelConfig{
		Cmd: `python model1.py \
    --arg1 value1 \
    --arg2 value2`,
	}

	args, err := config.SanitizedCommand()
	assert.NoError(t, err)
	assert.Equal(t, []string{"python", "model1.py", "--arg1", "value1", "--arg2", "value2"}, args)
}

func TestFindConfig(t *testing.T) {
	config := &Config{
		Models: map[string]ModelConfig{
			"model1": {
				Cmd:           "python model1.py",
				Proxy:         "http://localhost:8080",
				Aliases:       []string{"m1", "model-one"},
				Env:           []string{"VAR1=value1", "VAR2=value2"},
				CheckEndpoint: "/health",
			},
			"model2": {
				Cmd:           "python model2.py",
				Proxy:         "http://localhost:8081",
				Aliases:       []string{"m2", "model-two"},
				Env:           []string{"VAR3=value3", "VAR4=value4"},
				CheckEndpoint: "/status",
			},
		},
		HealthCheckTimeout: 10,
	}

	// Test finding a model by its name
	modelConfig, found := config.FindConfig("model1")
	assert.True(t, found)
	assert.Equal(t, config.Models["model1"], modelConfig)

	// Test finding a model by its alias
	modelConfig, found = config.FindConfig("m1")
	assert.True(t, found)
	assert.Equal(t, config.Models["model1"], modelConfig)

	// Test finding a model that does not exist
	modelConfig, found = config.FindConfig("model3")
	assert.False(t, found)
	assert.Equal(t, ModelConfig{}, modelConfig)
}

func TestSanitizeCommand(t *testing.T) {
	// Test a simple command
	args, err := SanitizeCommand("python model1.py")
	assert.NoError(t, err)
	assert.Equal(t, []string{"python", "model1.py"}, args)

	// Test a command with spaces and newlines
	args, err = SanitizeCommand(`python model1.py \
    --arg1 value1 \
    --arg2 value2`)
	assert.NoError(t, err)
	assert.Equal(t, []string{"python", "model1.py", "--arg1", "value1", "--arg2", "value2"}, args)

	// Test an empty command
	args, err = SanitizeCommand("")
	assert.Error(t, err)
	assert.Nil(t, args)
}