import { message } from "antd";
import { StoryTemplateEntity } from "../domain/Entities";
import { useUploadFile } from "../domain/service";
import { debounce } from "lodash";
import { TemplateStoryUseCase } from "../usecase/templateStoryUseCase";
import { useState, useCallback, useMemo } from "react";
import { generateTextToImage } from "@/api/movie_start";
import { MovieProjectService, MovieProjectMode } from "./MovieProjectService";
import { CreateMovieProjectV3Request } from "@/api/DTO/movie_start_dto";

/** 模板角色接口 */
interface TemplateRole {
  /** 角色名 */
  role_name: string;
  /** 照片URL */
  photo_url: string;
  /** 声音URL */
  voice_url: string;
}

interface UseTemplateStoryService {
  /** 模板列表 */
  templateStoryList: StoryTemplateEntity[];
  /** 当前选中要使用的模板 */
  selectedTemplate: StoryTemplateEntity | null;
  /** 当前选中的活跃角色索引 */
  activeRoleIndex: number;
  /** 计算属性：当前活跃角色信息 */
  activeRole: TemplateRole | null;
  /** 加载状态 */
  isLoading: boolean;
  /** 获取模板列表函数 */
  /** 获取模板列表函数 */
  getTemplateStoryList: () => Promise<void>;
  /**
   * action 生成电影函数
   * @param {string} user_id - 用户ID
   * @param {"auto" | "manual"} mode - 生成模式
   * @param {"720p" | "1080p" | "4k"} resolution - 分辨率
   * @param {string} language - 语言
   * @returns {Promise<string>} - 生成的电影ID
   */
  actionStory: (
    user_id: string,
    mode: "auto" | "manual",
    resolution: "720p" | "1080p" | "4k",
    language: string
  ) => Promise<string | undefined>;
  /** 设置选中的模板 */
  setSelectedTemplate: (template: StoryTemplateEntity | null) => void;
  /** 设置活跃角色索引 */
  setActiveRoleIndex: (index: number) => void;

  /** 设置当前活跃角色的音频URL */
  setActiveRoleAudio: (audioUrl: string) => void;
  /**清空数据 */
  clearData: () => void;
  /** 上传人物头像并分析 */
  AvatarAndAnalyzeFeatures: (imageUrl: string, roleName?: string) => Promise<void>;
  /** 更新指定角色的图片 */
  updateRoleImage: (roleName: string, imageUrl: string) => void;
  /** 更新变量字段值 */
  updateFillableContentField: (fieldName: string, fieldValue: string) => void;
  /** 带防抖的失焦处理函数 */
  handleFieldBlur: (fieldName: string, fieldValue: string) => void;
}

export const useTemplateStoryServiceHook = (): UseTemplateStoryService => {
  const [templateStoryList, setTemplateStoryList] = useState<
    StoryTemplateEntity[]
  >([]);
  const [selectedTemplate, setSelectedTemplate] =
    useState<StoryTemplateEntity | null>(null);
  const [activeRoleIndex, setActiveRoleIndex] = useState<number>(0);
  const [isLoading, setIsLoading] = useState(false);
  // 使用上传文件Hook
  const { uploadFile } = useUploadFile();

  /** 模板故事用例实例 */
  const templateStoryUseCase = useMemo(() => new TemplateStoryUseCase(), []);

  /** 计算属性：当前活跃角色信息 */
  const activeRole = useMemo(() => {
    if (
      !selectedTemplate ||
      activeRoleIndex < 0 ||
      activeRoleIndex >= selectedTemplate.storyRole.length
    ) {
      return null;
    }
    return selectedTemplate.storyRole[activeRoleIndex];
  }, [selectedTemplate, activeRoleIndex]);

  /**
   * 获取模板列表函数
   */
  const getTemplateStoryList = useCallback(async (): Promise<void> => {
    try {
      setIsLoading(true);

      const templates = await templateStoryUseCase.getTemplateStoryList();

      setTemplateStoryList(templates);
      setSelectedTemplate(templates[0]);
      setActiveRoleIndex(0);
      console.log(selectedTemplate, activeRoleIndex);
    } catch (err) {
      console.error("获取模板列表失败:", err);
    } finally {
      setIsLoading(false);
    }
  }, [templateStoryUseCase]);

  /**
   * 设置活跃角色索引
   */
  const handleSetActiveRoleIndex = useCallback((index: number): void => {
    setActiveRoleIndex(index);
  }, []);

  /**
   * 设置当前活跃角色的图片URL
   */
  const setActiveRoleData = useCallback(
    (imageUrl: string): void => {
      if (
        !selectedTemplate ||
        activeRoleIndex < 0 ||
        activeRoleIndex >= selectedTemplate.storyRole.length
      ) {
        console.log(selectedTemplate, activeRoleIndex);
        return;
      }
      try {
        // const character_brief = {
        //   name: selectedTemplate.storyRole[activeRoleIndex].role_name,
        //   image_url: imageUrl,
        //   character_analysis: JSON.parse(desc).character_analysis,
        // };
        const updatedTemplate = {
          ...selectedTemplate,
          storyRole: selectedTemplate.storyRole.map((role, index) =>
            index === activeRoleIndex
              ? {
                  ...role,
                  photo_url: imageUrl,
                }
              : role
          ),
        };

        setSelectedTemplate(updatedTemplate);
      } catch (error) {
        message.error("Image analysis failed");
        console.log("error", error);
      }
    },
    [selectedTemplate, activeRoleIndex]
  );

  /**
   * 设置当前活跃角色的音频URL
   */
  const setActiveRoleAudio = useCallback(
    (audioUrl: string): void => {
      if (
        !selectedTemplate ||
        activeRoleIndex < 0 ||
        activeRoleIndex >= selectedTemplate.storyRole.length
      ) {
        return;
      }

      const updatedTemplate = {
        ...selectedTemplate,
        storyRole: selectedTemplate.storyRole.map((role, index) =>
          index === activeRoleIndex ? { ...role, voice_url: audioUrl } : role
        ),
      };
      setSelectedTemplate(updatedTemplate);
    },
    [selectedTemplate, activeRoleIndex]
  );

  /**
   * 更新变量字段值
   */
  const updateFillableContentField = useCallback(
    (fieldName: string, fieldValue: string): void => {
      if (!selectedTemplate) return;

      const updatedTemplate = {
        ...selectedTemplate,
        fillable_content: selectedTemplate.fillable_content.map((field) =>
          field.field_name === fieldName
            ? { ...field, value: fieldValue }
            : field
        ),
      };
      setSelectedTemplate(updatedTemplate);
    },
    [selectedTemplate]
  );


  /**
   * 上传人物头像并分析特征，替换旧的角色数据
   * @param {string} imageUrl - 图片URL
   * @param {string} roleName - 角色名称（可选，如果不提供则使用当前活跃角色）
   */
  const AvatarAndAnalyzeFeatures = useCallback(
    async (imageUrl: string, roleName?: string): Promise<void> => {
      try {
        setIsLoading(true);

        // 如果提供了角色名称，更新指定角色；否则更新当前活跃角色
        if (roleName) {
          updateRoleImage(roleName, imageUrl);
        } else {
          setActiveRoleData(imageUrl);
        }

        // 调用用例处理人物头像上传和特征分析
        // const result = await templateStoryUseCase.AvatarAndAnalyzeFeatures(
        //   imageUrl
        // );
      } catch (error) {
        console.error("人物头像上传和特征分析失败:", error);
        throw error;
      } finally {
        setIsLoading(false);
      }
    },
    [setActiveRoleData]
  );

  /**
   * 更新指定角色的图片
   * @param {string} roleName - 角色名称
   * @param {string} imageUrl - 新的图片URL
   */
  const updateRoleImage = useCallback(
    (roleName: string, imageUrl: string): void => {
      if (!selectedTemplate) return;

      const updatedTemplate = {
        ...selectedTemplate,
        storyRole: selectedTemplate.storyRole.map((role) =>
          role.role_name === roleName
            ? { ...role, photo_url: imageUrl }
            : role
        ),
      };

      setSelectedTemplate(updatedTemplate);
    },
    [selectedTemplate]
  );
   /**
   * 带防抖的失焦处理函数
   * @param {string} fieldName - 字段名称
   * @param {string} fieldValue - 字段值
   */
  const handleFieldBlur = useCallback(
    debounce(async (fieldName: string, fieldValue: string): Promise<void> => {
      try {
        // 设置 loading 状态
        setIsLoading(true);

        // 调用图片生成接口
        const result = await generateTextToImage({
          description: fieldValue
        });

        if (result.successful && result.data?.image_url) {
          // 更新对应角色的图片
          updateRoleImage(fieldName, result.data.image_url);
          console.log(`字段 ${fieldName} 图片生成成功:`, result.data.image_url);
        } else {
          console.error(`字段 ${fieldName} 图片生成失败:`, result.message);
        }
      } catch (error) {
        console.error(`字段 ${fieldName} 处理失败:`, error);
      } finally {
        // 清除 loading 状态
        setIsLoading(false);
      }
    }, 500),
    [updateRoleImage, setIsLoading]
  );

  const actionStory = useCallback(
    async (
      user_id: string,
      mode: "auto" | "manual" = "auto",
      resolution: "720p" | "1080p" | "4k" = "720p",
      language: string = "English"
    ) => {
      console.log('selectedTemplate', selectedTemplate)
      try {
        // 设置 loading 状态
        setIsLoading(true);

        const params: CreateMovieProjectV3Request = {
          script: selectedTemplate?.generateText || "",
          category: selectedTemplate?.category || "",
          user_id,
          mode,
          resolution,
          storyRole: selectedTemplate?.storyRole || [],
          language,
          template_id: selectedTemplate?.template_id || "",
          fillable_content: selectedTemplate?.fillable_content || [],
        };
        console.log("params", params);
        const result = await MovieProjectService.createProject(
          MovieProjectMode.TEMPLATE,
          params
        );
        return result.project_id;
      } catch (error) {
        console.error("创建电影项目失败:", error);
      } finally {
        // 清除 loading 状态
        setIsLoading(false);
      }
    },
    [selectedTemplate]
  );
  return {
    templateStoryList,
    selectedTemplate,
    activeRoleIndex,
    activeRole,
    isLoading,
    getTemplateStoryList,
    actionStory,
    setSelectedTemplate,
    setActiveRoleIndex: handleSetActiveRoleIndex,
    setActiveRoleAudio,
    AvatarAndAnalyzeFeatures,
    updateRoleImage,
    updateFillableContentField,
    handleFieldBlur,
    clearData: () => {
      setTemplateStoryList([]);
      setSelectedTemplate(null);
      setActiveRoleIndex(0);
    },
  };
};