import type { Client } from "../client.ts";
import type { SysCallMapping } from "../../lib/plugos/system.ts";

import type { DocumentMeta, FileMeta, PageMeta } from "../../type/index.ts";

export function spaceReadSyscalls(editor: Client): SysCallMapping {
  return {
    "space.listPages": (): Promise<PageMeta[]> => {
      return editor.space.fetchPageList();
    },
    "space.readPage": async (_ctx, name: string): Promise<string> => {
      return (await editor.space.readPage(name)).text;
    },
    "space.pageExists": (_ctx, name: string): boolean => {
      return editor.clientSystem.allKnownFiles.has(name + ".md");
    },
    "space.getPageMeta": (_ctx, name: string): Promise<PageMeta> => {
      return editor.space.getPageMeta(name);
    },
    "space.listPlugs": (): Promise<FileMeta[]> => {
      return editor.space.listPlugs();
    },
    "space.listDocuments": async (): Promise<DocumentMeta[]> => {
      return await editor.space.fetchDocumentList();
    },
    "space.readDocument": async (_ctx, name: string): Promise<Uint8Array> => {
      return (await editor.space.readDocument(name)).data;
    },
    "space.getDocumentMeta": async (
      _ctx,
      name: string,
    ): Promise<DocumentMeta> => {
      return await editor.space.getDocumentMeta(name);
    },
    // DEPRECATED, please use document versions instead, left here for backwards compatibility
    "space.listAttachments": async (): Promise<DocumentMeta[]> => {
      return await editor.space.fetchDocumentList();
    },
    "space.readAttachment": async (_ctx, name: string): Promise<Uint8Array> => {
      return (await editor.space.readDocument(name)).data;
    },
    "space.getAttachmentMeta": async (
      _ctx,
      name: string,
    ): Promise<DocumentMeta> => {
      return await editor.space.getDocumentMeta(name);
    },
    // FS
    "space.listFiles": (): Promise<FileMeta[]> => {
      return editor.space.spacePrimitives.fetchFileList();
    },
    "space.getFileMeta": (_ctx, name: string): Promise<FileMeta> => {
      return editor.space.spacePrimitives.getFileMeta(name);
    },
    "space.readFile": async (_ctx, name: string): Promise<Uint8Array> => {
      return (await editor.space.spacePrimitives.readFile(name)).data;
    },
    "space.fileExists": (_ctx, name: string): boolean => {
      return editor.clientSystem.allKnownFiles.has(name);
    },
  };
}

export function spaceWriteSyscalls(editor: Client): SysCallMapping {
  return {
    "space.writePage": (
      _ctx,
      name: string,
      text: string,
    ): Promise<PageMeta> => {
      return editor.space.writePage(name, text);
    },
    "space.deletePage": async (_ctx, name: string) => {
      console.log("Deleting page");
      await editor.space.deletePage(name);
    },
    "space.writeDocument": (
      _ctx,
      name: string,
      data: Uint8Array,
    ): Promise<DocumentMeta> => {
      return editor.space.writeDocument(name, data);
    },
    "space.deleteDocument": async (_ctx, name: string) => {
      await editor.space.deleteDocument(name);
    },
    "space.writeFile": (
      _ctx,
      name: string,
      data: Uint8Array,
    ): Promise<FileMeta> => {
      return editor.space.spacePrimitives.writeFile(name, data);
    },
    "space.deleteFile": (_ctx, name: string) => {
      return editor.space.spacePrimitives.deleteFile(name);
    },
  };
}