All files / src/store/features/clipboard clipboardHelpers.ts

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import API from "renderer/lib/api";
import {
  ClipboardActors,
  ClipboardFormat,
  ClipboardMetasprites,
  ClipboardMetaspriteTiles,
  ClipboardPaletteIds,
  ClipboardScenes,
  ClipboardScriptEvents,
  ClipboardScriptValue,
  ClipboardSpriteState,
  ClipboardTriggers,
  ClipboardType,
  ClipboardTypeActors,
  ClipboardTypeMetasprites,
  ClipboardTypeMetaspriteTiles,
  ClipboardTypePaletteIds,
  ClipboardTypes,
  ClipboardTypeScenes,
  ClipboardTypeScriptEvents,
  ClipboardTypeScriptValue,
  ClipboardTypeSpriteState,
  ClipboardTypeTriggers,
  ClipboardSceneGrid,
  ClipboardTypeSceneGrid,
  NarrowClipboardType,
} from "./clipboardTypes";
import { isScriptValue } from "shared/lib/scriptValue/types";
 
const decoder = new TextDecoder("utf-8");
 
const isClipboardMetaspriteTiles = (
  input: unknown,
): input is ClipboardMetaspriteTiles => {
  if (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: { metaspriteTiles?: unknown } = input;
  return Array.isArray(wide.metaspriteTiles);
};
 
const isClipboardMetasprites = (
  input: unknown,
): input is ClipboardMetasprites => {
  if (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: { metasprites?: unknown; metaspriteTiles?: unknown } = input;
  return Array.isArray(wide.metasprites) && Array.isArray(wide.metaspriteTiles);
};
 
const isClipboardSpriteState = (
  input: unknown,
): input is ClipboardSpriteState => {
  if (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: {
    metasprites?: unknown;
    metaspriteTiles?: unknown;
    animations?: unknown;
    spriteState?: unknown;
  } = input;
  return (
    Array.isArray(wide.metasprites) &&
    Array.isArray(wide.metaspriteTiles) &&
    Array.isArray(wide.animations) &&
    typeof wide.spriteState === "object"
  );
};
 
const isClipboardPaletteIds = (
  input: unknown,
): input is ClipboardPaletteIds => {
  if (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: { paletteIds?: unknown } = input;
  return Array.isArray(wide.paletteIds);
};
 
const isClipboardScriptEvents = (
  input: unknown,
): input is ClipboardScriptEvents => {
  Iif (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: { scriptEvents?: unknown; script?: unknown } = input;
  return Array.isArray(wide.scriptEvents) && Array.isArray(wide.script);
};
 
const isClipboardTriggers = (input: unknown): input is ClipboardTriggers => {
  if (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: { scriptEvents?: unknown; triggers?: unknown } = input;
  return Array.isArray(wide.scriptEvents) && Array.isArray(wide.triggers);
};
 
const isClipboardActors = (input: unknown): input is ClipboardActors => {
  Iif (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: { scriptEvents?: unknown; actors?: unknown } = input;
  return Array.isArray(wide.scriptEvents) && Array.isArray(wide.actors);
};
 
const isClipboardScenes = (input: unknown): input is ClipboardScenes => {
  Iif (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: {
    scriptEvents?: unknown;
    actors?: unknown;
    triggers?: unknown;
    scenes?: unknown;
  } = input;
  return (
    Array.isArray(wide.scriptEvents) &&
    Array.isArray(wide.actors) &&
    Array.isArray(wide.triggers) &&
    Array.isArray(wide.scenes)
  );
};
 
const isClipboardScriptValue = (
  input: unknown,
): input is ClipboardScriptValue => {
  if (typeof input !== "object" || input === null) {
    return false;
  }
  const wide: { value?: unknown } = input;
  return "value" in wide && isScriptValue(wide.value);
};
 
const isClipboardSceneGrid = (input: unknown): input is ClipboardSceneGrid => {
  if (typeof input !== "object" || input === null) return false;
  const wide = input as Partial<ClipboardSceneGrid>;
  const cellCount = (wide.width ?? 0) * (wide.height ?? 0);
  const isNumberArray = (value: unknown, length: number) =>
    Array.isArray(value) &&
    value.length === length &&
    value.every((item) => typeof item === "number");
  const isTilesetSnapshot = (value: unknown) => {
    if (typeof value !== "object" || value === null) return false;
    const snapshot = value as {
      id?: unknown;
      width?: unknown;
      height?: unknown;
    };
    return (
      typeof snapshot.id === "string" &&
      Number.isInteger(snapshot.width) &&
      (snapshot.width as number) > 0 &&
      Number.isInteger(snapshot.height) &&
      (snapshot.height as number) > 0
    );
  };
  const isAutotileDefinition = (value: unknown) => {
    if (typeof value !== "object" || value === null) return false;
    const definition = value as { type?: unknown; startTile?: unknown };
    return (
      (definition.type === "2x2" || definition.type === "9slice") &&
      typeof definition.startTile === "number" &&
      Number.isFinite(definition.startTile)
    );
  };
  return (
    (wide.mode === "tiles" ||
      wide.mode === "collisions" ||
      wide.mode === "colors") &&
    Number.isInteger(wide.width) &&
    Number.isInteger(wide.height) &&
    (wide.width ?? 0) > 0 &&
    (wide.height ?? 0) > 0 &&
    isNumberArray(wide.values, cellCount) &&
    (wide.autotiles === undefined ||
      isNumberArray(wide.autotiles, cellCount)) &&
    (wide.tileColors === undefined ||
      isNumberArray(wide.tileColors, cellCount)) &&
    (wide.collisions === undefined ||
      isNumberArray(wide.collisions, cellCount)) &&
    (wide.linkedCells === undefined ||
      (Array.isArray(wide.linkedCells) &&
        wide.linkedCells.length === cellCount &&
        wide.linkedCells.every((item) => typeof item === "boolean"))) &&
    (wide.tilesets === undefined ||
      (Array.isArray(wide.tilesets) &&
        wide.tilesets.every(isTilesetSnapshot))) &&
    (wide.autotileDefinitions === undefined ||
      (Array.isArray(wide.autotileDefinitions) &&
        wide.autotileDefinitions.every(isAutotileDefinition)))
  );
};
 
export const copy = (payload: ClipboardType) => {
  const buffer = Buffer.from(JSON.stringify(payload.data), "utf8");
  API.clipboard.writeBuffer(payload.format, buffer);
};
 
export const paste = async <T extends ClipboardFormat>(
  format: T,
): Promise<NarrowClipboardType<ClipboardType, T> | undefined> => {
  const buffer = await API.clipboard.readBuffer(format);
 
  let data: unknown;
  try {
    data = JSON.parse(decoder.decode(buffer));
  } catch {
    return undefined;
  }
 
  Iif (format === ClipboardTypeMetaspriteTiles) {
    if (isClipboardMetaspriteTiles(data)) {
      return {
        format: ClipboardTypeMetaspriteTiles,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
    return undefined;
  } else Iif (format === ClipboardTypeMetasprites) {
    if (isClipboardMetasprites(data)) {
      return {
        format: ClipboardTypeMetasprites,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
    return undefined;
  } else Iif (format === ClipboardTypeSpriteState) {
    if (isClipboardSpriteState(data)) {
      return {
        format: ClipboardTypeSpriteState,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
    return undefined;
  } else Iif (format === ClipboardTypePaletteIds) {
    if (isClipboardPaletteIds(data)) {
      return {
        format: ClipboardTypePaletteIds,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
  } else if (format === ClipboardTypeScriptEvents) {
    Eif (isClipboardScriptEvents(data)) {
      return {
        format: ClipboardTypeScriptEvents,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
  } else Iif (format === ClipboardTypeTriggers) {
    if (isClipboardTriggers(data)) {
      return {
        format: ClipboardTypeTriggers,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
  } else if (format === ClipboardTypeActors) {
    Eif (isClipboardActors(data)) {
      return {
        format: ClipboardTypeActors,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
  } else if (format === ClipboardTypeScenes) {
    Eif (isClipboardScenes(data)) {
      return {
        format: ClipboardTypeScenes,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
  } else Eif (format === ClipboardTypeScriptValue) {
    if (isClipboardScriptValue(data)) {
      return {
        format: ClipboardTypeScriptValue,
        data,
      } as NarrowClipboardType<ClipboardType, T>;
    }
  } else if (format === ClipboardTypeSceneGrid) {
    if (isClipboardSceneGrid(data)) {
      return { format: ClipboardTypeSceneGrid, data } as NarrowClipboardType<
        ClipboardType,
        T
      >;
    }
  }
  return undefined;
};
 
export const pasteAny = async (): Promise<ClipboardType | undefined> => {
  for (const type of ClipboardTypes) {
    const data = await paste(type);
    if (data) {
      return data;
    }
  }
  return undefined;
};