redpeacock78/sushiro.js

import * as menu from "./generate/generate";

export class Sushiro {
  _str: string;
  public all: () => Promise<string> = async (): Promise<string> => {
    const all_menu: string[][] = await menu();
    return all_menu
      .map((i: string[]): string => {
        return i[0];
      })
      .join("\n");
  };
  public random: (random_num?: number) => Promise<string> = async (
    random_num?: number
  ): Promise<string> => {
    const all_menu: string[][] = await menu();
    const title: string[] = all_menu.map((i: string[]): string => {
      return i[0];
    });
    const shuffle: ([...array]: string[]) => string[] = ([
      ...array
    ]: string[]): string[] => {
      for (let i: number = array.length - 1; i >= 0; i--) {
        const j: number = Math.floor(Math.random() * (i + 1));
        [array[i], array[j]] = [array[j], array[i]];
      }
      return array;
    };
    if (random_num) {
      if (all_menu.length < random_num) {
        throw new Error("Error");
      } else {
        return shuffle(title).slice(0, random_num).join("\n");
      }
    } else {
      return shuffle(title).slice(0, 1).join("\n");
    }
  };
  public price: (search_word?: string) => Promise<string> = async (
    search_word?: string
  ): Promise<string> => {
    const all_menu: string[][] = await menu();
    const title: string[] = all_menu.map((i: string[]): string => {
      return i[0];
    });
    const price: string[] = all_menu.map((i: string[]): string => {
      return i[1];
    });
    if (search_word) {
      const nums: number[] = title
        .map((v: string, i: number): number => {
          if (v.indexOf(search_word) !== -1) {
            return i;
          }
        })
        .filter(Boolean);
      if (nums.length) {
        const result: string[][] = nums.map((i: number): string[] => {
          return [title[i], price[i]];
        });
        return result.join("\n").replace(/,/g, " ");
      } else {
        throw new Error("Error");
      }
    } else {
      const result: string[][] = title.map((v: string, i: number): string[] => {
        return [v, price[i]];
      });
      return result.join("\n").replace(/,/g, " ");
    }
  };
  public calorie: (search_word?: string) => Promise<string> = async (
    search_word?: string
  ): Promise<string> => {
    const all_menu: string[][] = await menu();
    const title: string[] = all_menu.map((i: string[]): string => {
      return i[0];
    });
    const calorie: string[] = all_menu.map((i: string[]): string => {
      return i[2];
    });
    if (search_word) {
      const nums: number[] = title
        .map((v: string, i: number): number => {
          if (v.indexOf(search_word) !== -1) {
            return i;
          }
        })
        .filter(Boolean);
      if (nums.length) {
        const result: string[][] = nums.map((i: number): string[] => {
          return [title[i], calorie[i]];
        });
        return result.join("\n").replace(/,/g, " ");
      } else {
        throw new Error("Error");
      }
    } else {
      const result: string[][] = title.map((v: string, i: number): string[] => {
        return [v, calorie[i]];
      });
      return result.join("\n").replace(/,/g, " ");
    }
  };
}