Keymap data layer (#95)

src/store/storage/local.ts

@@ -0,0 +1,67 @@
+import { Action } from '@ngrx/store';
+
+import { Keymap } from '../../config-serializer/config-items/Keymap';
+import { Keymaps } from '../../config-serializer/config-items/Keymaps';
+import { Macro } from '../../config-serializer/config-items/Macro';
+import { UhkConfiguration } from '../../config-serializer/config-items/UhkConfiguration';
+
+import { KeymapActions, MacroActions } from '../actions';
+import { AppState } from '../index';
+
+export class Local {
+    initialState(): AppState {
+        let config: UhkConfiguration;
+        let presetAll: Keymaps;
+
+        // Load data from json
+        if (!localStorage.getItem('config')) {
+            const jsonUser: JSON = require('json!../../config-serializer/uhk-config.json');
+            const jsonPreset: any = require('json!../../config-serializer/preset-keymaps.json');
+            config = new UhkConfiguration().fromJsObject(jsonUser);
+            presetAll = new Keymaps().fromJsObject(jsonPreset.keymaps);
+
+            // Save to local storage
+            localStorage.setItem('config', JSON.stringify(config.toJsObject()));
+            localStorage.setItem('preset', JSON.stringify(presetAll.toJsObject()));
+        }
+        // Load data from local storage
+        else {
+            config = new UhkConfiguration().fromJsObject(
+                JSON.parse(localStorage.getItem('config'))
+            );
+            presetAll = new Keymaps().fromJsObject(
+                JSON.parse(localStorage.getItem('preset'))
+            );
+        }
+
+        return {
+            keymaps: config.keymaps.elements,
+            macros: config.macros.elements,
+            presetKeymaps: presetAll.elements
+        };
+    }
+
+    saveSate(reducer: any): (state: any, action: Action) => AppState {
+        return function (state: any, action: Action) {
+            let nextState = reducer(state, action);
+            let config: UhkConfiguration;
+
+            // Save elements to the UhkConfiguration
+            if (action.type.startsWith(KeymapActions.PREFIX) && state.length && state[0] instanceof Keymap) {
+                config = new UhkConfiguration().fromJsObject(
+                    JSON.parse(localStorage.getItem('config'))
+                );
+                config.keymaps.elements = Object.values(nextState);
+                localStorage.setItem('config', JSON.stringify(config.toJsObject()));
+            } else if (action.type.startsWith(MacroActions.PREFIX) && state.length && state[0] instanceof Macro) {
+                config = new UhkConfiguration().fromJsObject(
+                    JSON.parse(localStorage.getItem('config'))
+                );
+                config.macros.elements = Object.values(nextState);
+                localStorage.setItem('config', JSON.stringify(config.toJsObject()));
+            }
+
+            return nextState;
+        };
+    }
+}