package ccc

import (
	"encoding/json"
	"fmt"
	"strings"

	openapi "github.com/alibabacloud-go/darabonba-openapi/v2/client"
	openapiutil "github.com/alibabacloud-go/openapi-util/service"
	util "github.com/alibabacloud-go/tea-utils/v2/service"
	"github.com/alibabacloud-go/tea/tea"
)

const defaultEndpoint = "ccc.cn-shanghai.aliyuncs.com"

func createClient(accessKeyId, accessKeySecret, endpoint string) (*openapi.Client, error) {
	if endpoint == "" {
		endpoint = defaultEndpoint
	}
	cfg := &openapi.Config{
		AccessKeyId:     tea.String(accessKeyId),
		AccessKeySecret: tea.String(accessKeySecret),
		Endpoint:        tea.String(endpoint),
	}
	return openapi.NewClient(cfg)
}

func createApiInfo(action, version string) *openapi.Params {
	return &openapi.Params{
		Action:      tea.String(action),
		Version:     tea.String(version),
		Protocol:    tea.String("HTTPS"),
		Method:      tea.String("POST"),
		AuthType:    tea.String("AK"),
		Style:       tea.String("RPC"),
		Pathname:    tea.String("/"),
		ReqBodyType: tea.String("json"),
		BodyType:    tea.String("json"),
	}
}

func capitalizeKey(key string) string {
	if key == "" {
		return key
	}
	return strings.ToUpper(key[:1]) + key[1:]
}

func Call(action, version, requestJSON, accessKeyId, accessKeySecret, endpoint string) (any, error) {
	client, err := createClient(accessKeyId, accessKeySecret, endpoint)
	if err != nil {
		return nil, err
	}

	requestStr := strings.TrimSpace(requestJSON)
	if requestStr == "" {
		requestStr = "{}"
	}

	var requestStruct map[string]any
	if err = json.NewDecoder(strings.NewReader(requestStr)).Decode(&requestStruct); err != nil {
		return nil, fmt.Errorf("request json: %w", err)
	}

	queries := make(map[string]any, len(requestStruct))
	for key, value := range requestStruct {
		queries[capitalizeKey(key)] = value
	}

	res, err := client.CallApi(createApiInfo(action, version), &openapi.OpenApiRequest{
		Query: openapiutil.Query(queries),
	}, &util.RuntimeOptions{})
	if err != nil {
		return nil, err
	}
	if res == nil {
		return nil, nil
	}
	return res["body"], nil
}