package llm_service

import (
	"ai_scheduler/internal/data/model"
	"ai_scheduler/internal/entitys"
	"ai_scheduler/internal/pkg"
	"ai_scheduler/internal/pkg/utils_ollama"
	"context"
	"encoding/json"
	"errors"
	"fmt"

	"github.com/gofiber/fiber/v2/log"
	"github.com/ollama/ollama/api"
)

type OllamaService struct {
	client *utils_ollama.Client
}

func NewOllamaGenerate(
	client *utils_ollama.Client,
) *OllamaService {
	return &OllamaService{
		client: client,
	}
}

func (r *OllamaService) IntentRecognize(ctx context.Context, requireData *entitys.RequireData) (msg string, err error) {
	prompt := r.getPrompt(requireData.Sys, requireData.Histories, requireData.UserInput, requireData.Tasks)
	toolDefinitions := r.registerToolsOllama(requireData.Tasks)
	match, err := r.client.ToolSelect(context.TODO(), prompt, toolDefinitions)
	if err != nil {
		return
	}
	log.Info("意图识别结果: %v", pkg.JsonStringIgonErr(match))
	if len(match.Message.Content) == 0 {
		if match.Message.ToolCalls != nil {
			var matchFromTools = &entitys.Match{
				Confidence: 1,
				Index:      match.Message.ToolCalls[0].Function.Name,
				Parameters: pkg.JsonStringIgonErr(match.Message.ToolCalls[0].Function.Arguments),
				IsMatch:    true,
			}
			match.Message.Content = pkg.JsonStringIgonErr(matchFromTools)
		} else {
			err = errors.New("不太明白你想表达的意思呢，可以在仔细描述一下您所需要的内容吗，感谢感谢")
			return
		}
	}

	msg = match.Message.Content
	return
}

func (r *OllamaService) getPrompt(sysInfo model.AiSy, history []model.AiChatHi, reqInput string, tasks []model.AiTask) []api.Message {
	var (
		prompt = make([]api.Message, 0)
	)
	prompt = append(prompt, api.Message{
		Role:    "system",
		Content: buildSystemPrompt(sysInfo.SysPrompt),
	}, api.Message{
		Role:    "assistant",
		Content: fmt.Sprintf("聊天记录:%s", pkg.JsonStringIgonErr(buildAssistant(history))),
	}, api.Message{
		Role:    "user",
		Content: reqInput,
	})
	return prompt
}

func (r *OllamaService) registerToolsOllama(tasks []model.AiTask) []api.Tool {
	taskPrompt := make([]api.Tool, 0)
	for _, task := range tasks {
		var taskConfig entitys.TaskConfigDetail
		err := json.Unmarshal([]byte(task.Config), &taskConfig)
		if err != nil {
			continue
		}

		taskPrompt = append(taskPrompt, api.Tool{
			Type: "function",
			Function: api.ToolFunction{
				Name:        task.Index,
				Description: task.Desc,
				Parameters: api.ToolFunctionParameters{
					Type:       taskConfig.Param.Type,
					Required:   taskConfig.Param.Required,
					Properties: taskConfig.Param.Properties,
				},
			},
		})

	}
	return taskPrompt
}