initial menu design, simpler patch serialization

lib/snippets/database/classes/PatchActions.ts

@@ -1,22 +0,0 @@
-/*
- * Copyright (C) SapphireCode - All Rights Reserved
- * This file is part of Snippeteer which is released under BSD-3-Clause.
- * See file 'LICENSE' for full license details.
- * Created by Timo Hocker <timo@scode.ovh>, May 2020
- */
-
-export enum PatchActions {
-  rename_column = 'rc',
-  add_column = 'ac',
-  drop_column = 'dc',
-  add_relation = 'ar',
-  drop_relation = 'dr',
-  set_column_type = 'tc',
-  add_table = 'at',
-  drop_table = 'dt',
-  rename_table = 'rt',
-  insert_data = 'id',
-  update_data = 'ud',
-  mutate_data = 'md',
-  delete_data = 'dd'
-}

lib/snippets/database/classes/Serializable.ts

@@ -1,10 +0,0 @@
-/*
- * Copyright (C) SapphireCode - All Rights Reserved
- * This file is part of Snippeteer which is released under BSD-3-Clause.
- * See file 'LICENSE' for full license details.
- * Created by Timo Hocker <timo@scode.ovh>, May 2020
- */
-
-export interface Serializable {
-  serialize(): string;
-}

lib/snippets/database/index.ts

@@ -6,13 +6,15 @@
  */
 
 import { Snippet } from '../../Snippet';
+import { MainMenu } from './menu/MainMenu';
 
 export default class Database implements Snippet {
   public is_active (): boolean {
     return false;
   }
 
-  public start (): Promise<void> {
-    return Promise.resolve ();
+  public async start (): Promise<void> {
+    await (new MainMenu)
+      .run ();
   }
 }

lib/snippets/database/menu/MainMenu.ts

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) SapphireCode - All Rights Reserved
+ * This file is part of Snippeteer which is released under BSD-3-Clause.
+ * See file 'LICENSE' for full license details.
+ * Created by Timo Hocker <timo@scode.ovh>, June 2020
+ */
+
+import { Database } from '../classes/Database';
+import { Menu } from './Menu';
+
+export class MainMenu extends Menu {
+  public constructor (db: Database) {
+    super ('Snippeteer Database');
+    this.register_option ('quit', () => { /* noop */ });
+    this.register_option ('create table', () => {
+      console.log ('table');
+    });
+  }
+}

lib/snippets/database/menu/Menu.ts

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) SapphireCode - All Rights Reserved
+ * This file is part of Snippeteer which is released under BSD-3-Clause.
+ * See file 'LICENSE' for full license details.
+ * Created by Timo Hocker <timo@scode.ovh>, June 2020
+ */
+
+import { StringOption } from '@sapphirecode/console-app';
+
+export class Menu {
+  private _options: Record<string, ()=>void|Promise<void>> = {};
+  private _title: string;
+
+  public constructor (title: string) {
+    this._title = title;
+  }
+
+  public async run (): Promise<void> {
+    const options = Object.keys (this._options);
+    const selected = await (new StringOption ({
+      name:              'menu_select',
+      message:           this._title,
+      sources:           { console: false },
+      exit_on_interrupt: true,
+      preset:            options
+    }))
+      .parse ();
+    if (typeof this._options[selected] !== 'undefined')
+      await new Promise (this._options[selected]);
+  }
+
+  public register_option (name:string, callback:()=>void|Promise<void>): void {
+    this._options[name] = callback;
+  }
+}

lib/snippets/database/patch_actions/PatchActions.ts

@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) SapphireCode - All Rights Reserved
+ * This file is part of Snippeteer which is released under BSD-3-Clause.
+ * See file 'LICENSE' for full license details.
+ * Created by Timo Hocker <timo@scode.ovh>, June 2020
+ */
+
+export { RenameColumn } from './RenameColumn';
+export { AddColumn } from './AddColumn';
+export { DropColumn } from './DropColumn';
+export { AddRelation } from './AddRelation';
+export { DropRelation } from './DropRelation';
+export { SetColumnType } from './SetColumnType';
+export { AddTable } from './AddTable';
+export { DropTable } from './DropTable';
+export { RenameTable } from './RenameTable';
+export { InsertData } from './InsertData';
+export { UpdateData } from './UpdateData';
+export { MutateDate } from './MutateDate';
+export { DeleteData } from './DeleteData';

lib/snippets/database/patch_actions/RenameColumn.ts

@@ -5,40 +5,39 @@
  * Created by Timo Hocker <timo@scode.ovh>, May 2020
  */
 
-import { Serializable } from '../classes/Serializable';
+import { Persistent } from '@sapphirecode/modelling';
 import { PatchAction } from '../classes/PatchAction';
 import { Database } from '../classes/Database';
 
-export class RenameColumn implements Serializable, PatchAction {
-  public table: string;
-  public column: string;
-  public new_name: string;
+export class RenameColumn extends Persistent implements PatchAction {
+  public get table (): string {
+    return this.get ('table');
+  }
+
+  public get column (): string {
+    return this.get ('column');
+  }
+
+  public get new_name (): string {
+    return this.get ('new_name');
+  }
 
   public constructor (
     column: string,
     new_name: string|null = null,
     table: string|null = null
   ) {
-    if (new_name === null || table === null) {
-      const regex
-      = /(?<table>[a-z_]+) (?<column>[a-z_]+) (?<new_name>[a-z_]+)/iu;
-      const res = regex.exec (column);
-      if (res === null || typeof res.groups === 'undefined')
-        throw new Error ('invalid string to deserialize');
+    this.properties = { column: 'string', table: 'string', new_name: 'string' };
 
-      this.column = res.groups.column;
-      this.new_name = res.groups.new_name;
-      this.table = res.groups.table;
+    if (new_name === null || table === null) {
+      const parsed = JSON.parse (column);
+      this.assign_object (parsed);
       return;
     }
 
-    this.column = column;
-    this.table = table;
-    this.new_name = new_name;
-  }
-
-  public serialize (): string {
-    return `${this.table} ${this.column} ${this.new_name}`;
+    this.set ('column', column);
+    this.set ('new_name', new_name);
+    this.set ('table', table);
   }
 
   public apply (db: Database): void {