package jimeng

import (
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"

	"github.com/volcengine/volc-sdk-golang/base"
	"github.com/volcengine/volc-sdk-golang/service/visual"
)

// Client 即梦API客户端
type Client struct {
	visual *visual.Visual
}

// NewClient 创建即梦API客户端
func NewClient(accessKey, secretKey string) *Client {
	// 使用官方SDK的visual实例
	visualInstance := visual.NewInstance()
	visualInstance.Client.SetAccessKey(accessKey)
	visualInstance.Client.SetSecretKey(secretKey)

	// 添加即梦AI专有的API配置
	jimengApis := map[string]*base.ApiInfo{
		"CVSync2AsyncSubmitTask": {
			Method: http.MethodPost,
			Path:   "/",
			Query: url.Values{
				"Action":  []string{"CVSync2AsyncSubmitTask"},
				"Version": []string{"2022-08-31"},
			},
		},
		"CVSync2AsyncGetResult": {
			Method: http.MethodPost,
			Path:   "/",
			Query: url.Values{
				"Action":  []string{"CVSync2AsyncGetResult"},
				"Version": []string{"2022-08-31"},
			},
		},
		"CVProcess": {
			Method: http.MethodPost,
			Path:   "/",
			Query: url.Values{
				"Action":  []string{"CVProcess"},
				"Version": []string{"2022-08-31"},
			},
		},
	}

	// 将即梦API添加到现有的ApiInfoList中
	for name, info := range jimengApis {
		visualInstance.Client.ApiInfoList[name] = info
	}

	return &Client{
		visual: visualInstance,
	}
}

// SubmitTask 提交异步任务
func (c *Client) SubmitTask(req *SubmitTaskRequest) (*SubmitTaskResponse, error) {
	// 直接将请求转为map[string]interface{}
	reqBodyBytes, err := json.Marshal(req)
	if err != nil {
		return nil, fmt.Errorf("marshal request failed: %w", err)
	}

	// 直接使用序列化后的字节
	jsonBody := reqBodyBytes

	// 调用SDK的JSON方法
	respBody, statusCode, err := c.visual.Client.Json("CVSync2AsyncSubmitTask", nil, string(jsonBody))
	if err != nil {
		return nil, fmt.Errorf("submit task failed (status: %d): %w", statusCode, err)
	}

	logger.Infof("Jimeng SubmitTask Response: %s", string(respBody))

	// 解析响应
	var result SubmitTaskResponse
	if err := json.Unmarshal(respBody, &result); err != nil {
		return nil, fmt.Errorf("unmarshal response failed: %w", err)
	}

	return &result, nil
}

// QueryTask 查询任务结果
func (c *Client) QueryTask(req *QueryTaskRequest) (*QueryTaskResponse, error) {
	// 序列化请求
	jsonBody, err := json.Marshal(req)
	if err != nil {
		return nil, fmt.Errorf("marshal request failed: %w", err)
	}

	// 调用SDK的JSON方法
	respBody, statusCode, err := c.visual.Client.Json("CVSync2AsyncGetResult", nil, string(jsonBody))
	if err != nil {
		return nil, fmt.Errorf("query task failed (status: %d): %w", statusCode, err)
	}

	logger.Infof("Jimeng QueryTask Response: %s", string(respBody))

	// 解析响应
	var result QueryTaskResponse
	if err := json.Unmarshal(respBody, &result); err != nil {
		return nil, fmt.Errorf("unmarshal response failed: %w", err)
	}

	return &result, nil
}

// SubmitSyncTask 提交同步任务（仅用于文生图）
func (c *Client) SubmitSyncTask(req *SubmitTaskRequest) (*QueryTaskResponse, error) {
	// 序列化请求
	jsonBody, err := json.Marshal(req)
	if err != nil {
		return nil, fmt.Errorf("marshal request failed: %w", err)
	}

	// 调用SDK的JSON方法
	respBody, statusCode, err := c.visual.Client.Json("CVProcess", nil, string(jsonBody))
	if err != nil {
		return nil, fmt.Errorf("submit sync task failed (status: %d): %w", statusCode, err)
	}

	logger.Infof("Jimeng SubmitSyncTask Response: %s", string(respBody))

	// 解析响应，同步任务直接返回结果
	var result QueryTaskResponse
	if err := json.Unmarshal(respBody, &result); err != nil {
		return nil, fmt.Errorf("unmarshal response failed: %w", err)
	}

	return &result, nil
}