package provider

import (
	"net/http"

	"nofx/mcp"
)

const (
	DefaultKimiBaseURL = "https://api.moonshot.ai/v1" // Global endpoint (use api.moonshot.cn for China)
	DefaultKimiModel   = "moonshot-v1-auto"
)

func init() {
	mcp.RegisterProvider(mcp.ProviderKimi, func(opts ...mcp.ClientOption) mcp.AIClient {
		return NewKimiClientWithOptions(opts...)
	})
}

type KimiClient struct {
	*mcp.Client
}

func (c *KimiClient) BaseClient() *mcp.Client { return c.Client }

// NewKimiClient creates Kimi (Moonshot) client (backward compatible)
func NewKimiClient() mcp.AIClient {
	return NewKimiClientWithOptions()
}

// NewKimiClientWithOptions creates Kimi client (supports options pattern)
func NewKimiClientWithOptions(opts ...mcp.ClientOption) mcp.AIClient {
	kimiOpts := []mcp.ClientOption{
		mcp.WithProvider(mcp.ProviderKimi),
		mcp.WithModel(DefaultKimiModel),
		mcp.WithBaseURL(DefaultKimiBaseURL),
		mcp.WithTemperature(1.0), // Kimi K2.5 only allows temperature=1
	}

	allOpts := append(kimiOpts, opts...)
	baseClient := mcp.NewClient(allOpts...).(*mcp.Client)

	kimiClient := &KimiClient{
		Client: baseClient,
	}

	baseClient.Hooks = kimiClient
	return kimiClient
}

func (c *KimiClient) SetAPIKey(apiKey string, customURL string, customModel string) {
	c.APIKey = apiKey

	if len(apiKey) > 8 {
		c.Log.Infof("🔧 [MCP] Kimi API Key: %s...%s", apiKey[:4], apiKey[len(apiKey)-4:])
	}
	if customURL != "" {
		c.BaseURL = customURL
		c.Log.Infof("🔧 [MCP] Kimi using custom BaseURL: %s", customURL)
	} else {
		c.Log.Infof("🔧 [MCP] Kimi using default BaseURL: %s", c.BaseURL)
	}
	if customModel != "" {
		c.Model = customModel
		c.Log.Infof("🔧 [MCP] Kimi using custom Model: %s", customModel)
	} else {
		c.Log.Infof("🔧 [MCP] Kimi using default Model: %s", c.Model)
	}
}

// Kimi uses standard OpenAI-compatible API
func (c *KimiClient) SetAuthHeader(reqHeaders http.Header) {
	c.Client.SetAuthHeader(reqHeaders)
}