import {
  IconBlockquote,
  IconCaretRightFilled,
  IconCheckbox,
  IconCode,
  IconH1,
  IconH2,
  IconH3,
  IconInfoCircle,
  IconList,
  IconListNumbers,
  IconMath,
  IconMathFunction,
  IconMovie,
  IconPhoto,
  IconTable,
  IconTypography,
} from "@tabler/icons-react";
import {
  CommandProps,
  SlashMenuGroupedItemsType,
} from "@/features/editor/components/slash-menu/types";
import { uploadImageAction } from "@/features/editor/components/image/upload-image-action.tsx";
import { uploadVideoAction } from "@/features/editor/components/video/upload-video-action.tsx";

const CommandGroups: SlashMenuGroupedItemsType = {
  basic: [
    {
      title: "Text",
      description: "Just start typing with plain text.",
      searchTerms: ["p", "paragraph"],
      icon: IconTypography,
      command: ({ editor, range }: CommandProps) => {
        editor
          .chain()
          .focus()
          .deleteRange(range)
          .toggleNode("paragraph", "paragraph")
          .run();
      },
    },
    {
      title: "To-do list",
      description: "Track tasks with a to-do list.",
      searchTerms: ["todo", "task", "list", "check", "checkbox"],
      icon: IconCheckbox,
      command: ({ editor, range }: CommandProps) => {
        editor.chain().focus().deleteRange(range).toggleTaskList().run();
      },
    },
    {
      title: "Heading 1",
      description: "Big section heading.",
      searchTerms: ["title", "big", "large"],
      icon: IconH1,
      command: ({ editor, range }: CommandProps) => {
        editor
          .chain()
          .focus()
          .deleteRange(range)
          .setNode("heading", { level: 1 })
          .run();
      },
    },
    {
      title: "Heading 2",
      description: "Medium section heading.",
      searchTerms: ["subtitle", "medium"],
      icon: IconH2,
      command: ({ editor, range }: CommandProps) => {
        editor
          .chain()
          .focus()
          .deleteRange(range)
          .setNode("heading", { level: 2 })
          .run();
      },
    },
    {
      title: "Heading 3",
      description: "Small section heading.",
      searchTerms: ["subtitle", "small"],
      icon: IconH3,
      command: ({ editor, range }: CommandProps) => {
        editor
          .chain()
          .focus()
          .deleteRange(range)
          .setNode("heading", { level: 3 })
          .run();
      },
    },
    {
      title: "Bullet list",
      description: "Create a simple bullet list.",
      searchTerms: ["unordered", "point", "list"],
      icon: IconList,
      command: ({ editor, range }: CommandProps) => {
        editor.chain().focus().deleteRange(range).toggleBulletList().run();
      },
    },
    {
      title: "Numbered list",
      description: "Create a list with numbering.",
      searchTerms: ["numbered", "ordered", "list"],
      icon: IconListNumbers,
      command: ({ editor, range }: CommandProps) => {
        editor.chain().focus().deleteRange(range).toggleOrderedList().run();
      },
    },
    {
      title: "Quote",
      description: "Create block quote.",
      searchTerms: ["blockquote", "quotes"],
      icon: IconBlockquote,
      command: ({ editor, range }: CommandProps) =>
        editor.chain().focus().deleteRange(range).toggleBlockquote().run(),
    },
    {
      title: "Code",
      description: "Capture a code snippet.",
      searchTerms: ["codeblock"],
      icon: IconCode,
      command: ({ editor, range }: CommandProps) =>
        editor.chain().focus().deleteRange(range).toggleCodeBlock().run(),
    },
    {
      title: "Image",
      description: "Upload an image from your computer.",
      searchTerms: ["photo", "picture", "media"],
      icon: IconPhoto,
      command: ({ editor, range }) => {
        editor.chain().focus().deleteRange(range).run();

        const pageId = editor.storage?.pageId;
        if (!pageId) return;

        // upload image
        const input = document.createElement("input");
        input.type = "file";
        input.accept = "image/*";
        input.onchange = async () => {
          if (input.files?.length) {
            const file = input.files[0];
            const pos = editor.view.state.selection.from;
            uploadImageAction(file, editor.view, pos, pageId);
          }
        };
        input.click();
      },
    },
    {
      title: "Video",
      description: "Upload an video from your computer.",
      searchTerms: ["video", "mp4", "media"],
      icon: IconMovie,
      command: ({ editor, range }) => {
        editor.chain().focus().deleteRange(range).run();

        const pageId = editor.storage?.pageId;
        if (!pageId) return;

        // upload video
        const input = document.createElement("input");
        input.type = "file";
        input.accept = "video/*";
        input.onchange = async () => {
          if (input.files?.length) {
            const file = input.files[0];
            const pos = editor.view.state.selection.from;
            uploadVideoAction(file, editor.view, pos, pageId);
          }
        };
        input.click();
      },
    },
    {
      title: "Table",
      description: "Insert a table.",
      searchTerms: ["table", "rows", "columns"],
      icon: IconTable,
      command: ({ editor, range }: CommandProps) =>
        editor
          .chain()
          .focus()
          .deleteRange(range)
          .insertTable({ rows: 3, cols: 3, withHeaderRow: false })
          .run(),
    },
    {
      title: "Toggle block",
      description: "Insert collapsible block.",
      searchTerms: ["collapsible", "block", "toggle", "details", "expand"],
      icon: IconCaretRightFilled,
      command: ({ editor, range }: CommandProps) =>
        editor.chain().focus().deleteRange(range).toggleDetails().run(),
    },
    {
      title: "Callout",
      description: "Insert callout notice.",
      searchTerms: [
        "callout",
        "notice",
        "panel",
        "info",
        "warning",
        "success",
        "error",
        "danger",
      ],
      icon: IconInfoCircle,
      command: ({ editor, range }: CommandProps) =>
        editor.chain().focus().deleteRange(range).toggleCallout().run(),
    },
    {
      title: "Math inline",
      description: "Insert inline math equation.",
      searchTerms: [
        "math",
        "inline",
        "mathinline",
        "inlinemath",
        "inline math",
        "equation",
        "katex",
        "latex",
        "tex",
      ],
      icon: IconMathFunction,
      command: ({ editor, range }: CommandProps) =>
        editor
          .chain()
          .focus()
          .deleteRange(range)
          .setMathInline()
          .setNodeSelection(range.from)
          .run(),
    },
    {
      title: "Math block",
      description: "Insert math equation",
      searchTerms: [
        "math",
        "block",
        "mathblock",
        "block math",
        "equation",
        "katex",
        "latex",
        "tex",
      ],
      icon: IconMath,
      command: ({ editor, range }: CommandProps) =>
        editor.chain().focus().deleteRange(range).setMathBlock().run(),
    },
  ],
};

export const getSuggestionItems = ({
  query,
}: {
  query: string;
}): SlashMenuGroupedItemsType => {
  const search = query.toLowerCase();
  const filteredGroups: SlashMenuGroupedItemsType = {};

  const fuzzyMatch = (query, target) => {
    let queryIndex = 0;
    target = target.toLowerCase();
    for (let char of target) {
      if (query[queryIndex] === char) queryIndex++;
      if (queryIndex === query.length) return true;
    }
    return false;
  };

  for (const [group, items] of Object.entries(CommandGroups)) {
    const filteredItems = items.filter((item) => {
      return (
        fuzzyMatch(search, item.title) ||
        item.description.toLowerCase().includes(search) ||
        (item.searchTerms &&
          item.searchTerms.some((term: string) => term.includes(search)))
      );
    });

    if (filteredItems.length) {
      filteredGroups[group] = filteredItems;
    }
  }

  return filteredGroups;
};

export default getSuggestionItems;