package doubao

import "context"

type (
	Message struct {
		Role    string `json:"role"`
		Content string `json:"content"`
		// Images 可选图片 url 列表：非空时以多模态格式（text + image_url）发送，用于豆包视觉模型。
		// 为空时按纯文本发送，行为不变。
		Images []string `json:"images,omitempty"`
	}
	//回应流式切片
	ChatResponseChoice struct {
		Role    string                 `json:"role"`
		Content string                 `json:"content,omitempty"`
		Meta    map[string]interface{} `json:"meta,omitempty"`
	}
	ISys interface {
		Chat(ctx context.Context, msgs []Message) (result *ChatResponseChoice, err error)
		ChatForSteams(ctx context.Context, msgs []Message, choiceChan chan *ChatResponseChoice) (err error)
	}
)

var defsys ISys

func OnInit(config map[string]interface{}, option ...Option) (err error) {
	defsys, err = newSys(newOptions(config, option...))
	return
}

func NewSys(option ...Option) (sys ISys, err error) {
	sys, err = newSys(newOptionsByOption(option...))
	return
}

func Chat(ctx context.Context, msgs []Message) (result *ChatResponseChoice, err error) {
	return defsys.Chat(ctx, msgs)
}

func ChatForSteams(ctx context.Context, msgs []Message, choiceChan chan *ChatResponseChoice) (err error) {
	return defsys.ChatForSteams(ctx, msgs, choiceChan)
}