package handler

import (
	"net/http"

	"gen2d/internal/logger"
	"gen2d/internal/model"
	"gen2d/internal/service"

	"github.com/gin-gonic/gin"
)

// PromptOptimizeRequest 提示词优化请求。
type PromptOptimizeRequest struct {
	Tags      []string `json:"tags" binding:"required,min=1"` // 用户选择的标签
	AssetType string   `json:"assetType" binding:"required"`  // 素材类型
	Prompt    string   `json:"prompt"`                        // 用户原始提示词
	UserNote  string   `json:"userNote"`                      // 用户额外描述
}

// PromptOptimize 提示词优化接口，接收用户标签并调用 LLM 生成规范提示词。
func PromptOptimize(c *gin.Context) {
	var req PromptOptimizeRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, model.Fail(http.StatusBadRequest, "参数错误: "+err.Error()))
		return
	}

	in := service.PromptAgentInput{
		Tags:      req.Tags,
		AssetType: req.AssetType,
		Prompt:    req.Prompt,
		UserNote:  req.UserNote,
	}

	output, err := service.RunPromptAgent(c.Request.Context(), in)
	if err != nil {
		logger.FromCtx(c.Request.Context()).Error("提示词优化失败", "error", err)
		c.JSON(http.StatusInternalServerError, model.Fail(http.StatusInternalServerError, "提示词优化失败"))
		return
	}

	c.JSON(http.StatusOK, model.OK(output))
}