filesystem, terminal vars

src/mingde/fs.ts

@@ -1,12 +1,11 @@
-
 //file system stuff
 
 export type Path = `/${string}`;
 
-type FileObject = string;
+export type FileObject = string;
 
 //type DirectoryObject = Record<string, DirectoryObject | FileObject>; is illegal apparently
-interface DirectoryObject {
+export interface DirectoryObject {
   [name: string]: FileObject | DirectoryObject,
 }
 
@@ -42,8 +41,6 @@ export class FileSystemObject {
         mod_parts = [];
       } else {
         let possible_path: string[] = current_path.split("/").slice(0, -up);
-        console.log(current_path.split("/"), up)
-        console.log(possible_path.length, 'a');
         if (possible_path.length === 0) {
           //went up more times than possible, outside of root, so just give them root
           path = "/";
@@ -60,16 +57,67 @@ export class FileSystemObject {
     } else {
       path = current_path;
     }
-    console.log(mod_parts);
     for (let k = 0; k < mod_parts.length; k++) {
       //do not add / if the path is just a /
       path += path === "/" ? mod_parts[k] : "/" + mod_parts[k];
     }
     return path;
   }
-  get_path_contents(_path: Path): DirectoryObject | FileObject | undefined {
-    //
-    return;
+  get_path_contents(path: Path): DirectoryObject | FileObject | undefined {
+    if (path === "/") {
+      return this.file_system;
+    } else {
+      const parts: string[] = path.split("/").slice(1);
+      let current_location: DirectoryObject | FileObject = this.file_system;
+      for (let i = 0; i < parts.length; i++) {
+        current_location = current_location[parts[i]];
+        if (typeof current_location === "undefined") {
+          return;
+        }
+      }
+      return current_location;
+    }
+  }
+  remove_path(path: Path) {
+    if (path === "/") {
+      //no!
+      return false;
+    } else {
+      const parts: string[] = path.split("/").slice(1);
+      //current_location is a pointer to this.file_system
+      let current_location: DirectoryObject | FileObject = this.file_system;
+      for (let i = 0; i < parts.length - 1; i++) {
+        current_location = current_location[parts[i]];
+        if (typeof current_location === "undefined") {
+          return false;
+        }
+      }
+      const final_part: string = parts[parts.length - 1];
+      delete current_location[final_part];
+      return true;
+    }
+  }
+  //returns success/failure
+  write_path(path: Path, new_content: FileObject | DirectoryObject): boolean {
+    if (path === "/") {
+      //no!
+      return false;
+    } else {
+      const parts: string[] = path.split("/").slice(1);
+      //current_location is a pointer to this.file_system
+      let current_location: DirectoryObject | FileObject = this.file_system;
+      for (let i = 0; i < parts.length - 1; i++) {
+        current_location = current_location[parts[i]];
+        if (typeof current_location === "undefined") {
+          return;
+        }
+      }
+      const final_part: string = parts[parts.length - 1];
+      //directory cannot be written into a file and vice versa, exception if the path doesn't exist yet (so files/directories can still be made)
+      if (typeof current_location[final_part] !== typeof new_content && typeof current_location[final_part] !== "undefined") return false;
+      current_location[final_part] = new_content;
+      return true;
+    }
   }
 };
 

src/mingde/guards.ts

@@ -1,6 +1,6 @@
 import { WindowChangeEvent, WindowLike, WindowLikeType, WindowManager } from './wm.js';
 import { DesktopBackgroundTypes, DesktopBackgroundInfo, Themes, THEMES_LIST } from './themes.js';
-import { OpenWindowValue, ChangeCursorValue, ChangeCoordsValue, FocusWindowValue, ChangeThemeValue, ChangeSettingsValue, ReadFileSystemValue, CursorType } from './requests.js';
+import { OpenWindowValue, ChangeCursorValue, ChangeCoordsValue, FocusWindowValue, ChangeThemeValue, ChangeSettingsValue, ReadFileSystemValue, WriteFileSystemValue, RemoveFileSystemValue, CursorType } from './requests.js';
 import { DesktopTime } from './utils.js';
 import { SETTINGS_KEYS } from './mutables.js';
 
@@ -110,13 +110,24 @@ export function isChangeSettingsValue(maybe_change_settings: any): maybe_change_
   return true;
 }
 
-const FILE_SYSTEM_PERMISSIONS_ALL = ["read_all_file_system", "read_usr_file_system", "read_prg_file_system"];
 export function isReadFileSystemValue(maybe_read_file_system: any): maybe_read_file_system is ReadFileSystemValue {
-  if (!FILE_SYSTEM_PERMISSIONS_ALL.includes(maybe_read_file_system?.permission_type) && typeof maybe_read_file_system?.path !== "string") return false;
+  if (!maybe_read_file_system?.permission_type.startsWith("read_") || !maybe_read_file_system?.permission_type.endsWith("_file_system") || typeof maybe_read_file_system?.path !== "string") return false;
   if (!maybe_read_file_system?.path.startsWith('/')) return false;
   return true;
 }
 
+export function isWriteFileSystemValue(maybe_write_file_system: any): maybe_write_file_system is WriteFileSystemValue {
+  if (!maybe_write_file_system?.permission_type.startsWith("write_") || !maybe_write_file_system?.permission_type.endsWith("_file_system") || typeof maybe_write_file_system?.path !== "string" || (typeof maybe_write_file_system?.content !== "string" && typeof maybe_write_file_system?.content !== "object")) return false;
+  if (!maybe_write_file_system?.path.startsWith('/')) return false;
+  return true;
+}
+
+export function isRemoveFileSystemValue(maybe_remove_file_system: any): maybe_remove_file_system is RemoveFileSystemValue {
+  if (!maybe_remove_file_system?.permission_type.startsWith("write_") || !maybe_remove_file_system?.permission_type.endsWith("_file_system") || typeof maybe_remove_file_system?.path !== "string") return false;
+  if (!maybe_remove_file_system?.path.startsWith('/')) return false;
+  return true;
+}
+
 //typescript doesn't autodetect that render_view_window exists on Window? idk why, hope this doesn't cause any problems
 export function isWindow(maybe_window: any): maybe_window is Window {
   //instanceof Window doesn't work here, idk why

src/mingde/registry.ts

@@ -15,9 +15,14 @@ export interface Permission {
   read_all_file_system?: boolean;
   read_usr_file_system?: boolean;
   read_prg_file_system?: boolean;
+  write_all_file_system?: boolean;
+  write_usr_file_system?: boolean;
+  write_prg_file_system?: boolean;
 }
 
-export type FILE_SYSTEM_PERMISSIONS = "read_all_file_system" | "read_usr_file_system" | "read_prg_file_system";
+export type READ_FILE_SYSTEM_PERMISSIONS = `read_${string}_file_system`;
+
+export type WRITE_FILE_SYSTEM_PERMISSIONS = `write_${string}_file_system`;
 
 export type Permissions = Record<string, Permission>;
 

src/mingde/requests.ts

@@ -1,7 +1,7 @@
 import type { Themes } from './themes.js';
 import type { WindowManagerSettings } from './mutables.js';
-import type { FILE_SYSTEM_PERMISSIONS } from './registry.js';
-import type { Path } from './fs.js';
+import type { READ_FILE_SYSTEM_PERMISSIONS, WRITE_FILE_SYSTEM_PERMISSIONS } from './registry.js';
+import type { Path, FileObject, DirectoryObject } from './fs.js';
 
 //requests are messages but propogate up from windowlike to wm
 export enum WindowRequest {
@@ -14,6 +14,8 @@ export enum WindowRequest {
   ChangeTheme = "ChangeTheme", //also a WindowMessage called this, that won't be confusing at all...
   ChangeSettings = "ChangeSettings",
   ReadFileSystem = "ReadFileSystem",
+  WriteFileSystem = "WriteFileSystem",
+  RemoveFileSystem = "RemoveFileSystem",
 }
 
 //should be extended if requests need additional values, eg, OpenWindow request needs to know what window to open
@@ -64,7 +66,19 @@ export interface ChangeSettingsValue extends WindowRequestValue {
 }
 
 export interface ReadFileSystemValue extends WindowRequestValue {
-  permission_type: FILE_SYSTEM_PERMISSIONS;
+  permission_type: READ_FILE_SYSTEM_PERMISSIONS;
+  path: Path;
+}
+
+//append
+export interface WriteFileSystemValue extends WindowRequestValue {
+  permission_type: WRITE_FILE_SYSTEM_PERMISSIONS;
+  path: Path;
+  content: FileObject | DirectoryObject;
+}
+
+export interface RemoveFileSystemValue extends WindowRequestValue {
+  permission_type: WRITE_FILE_SYSTEM_PERMISSIONS;
   path: Path;
 }
 
@@ -78,5 +92,7 @@ export interface WindowRequestValues {
   [WindowRequest.ChangeTheme]: ChangeThemeValue;
   [WindowRequest.ChangeSettings]: ChangeSettingsValue;
   [WindowRequest.ReadFileSystem]: ReadFileSystemValue;
+  [WindowRequest.WriteFileSystem]: WriteFileSystemValue;
+  [WindowRequest.RemoveFileSystem]: RemoveFileSystemValue;
 }