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92 lines
3.0 KiB
92 lines
3.0 KiB
import { Inject, Injectable } from '@angular/core';
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import { BehaviorSubject, Observable } from 'rxjs';
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import * as _ from 'lodash';
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import { TREO_APP_CONFIG } from '@treo/services/config/config.constants';
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import { AppConfig } from 'app/core/config/app.config';
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const SCRUTINY_CONFIG_LOCAL_STORAGE_KEY = 'scrutiny';
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@Injectable({
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providedIn: 'root'
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})
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export class TreoConfigService
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{
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// Private
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private _config: BehaviorSubject<any>;
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private systemPrefersDark: boolean;
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/**
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* Constructor
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*/
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constructor(@Inject(TREO_APP_CONFIG) defaultConfig: any)
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{
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this.systemPrefersDark = window.matchMedia && window.matchMedia("(prefers-color-scheme: dark)").matches;
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let currentScrutinyConfig = defaultConfig
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let localConfigStr = localStorage.getItem(SCRUTINY_CONFIG_LOCAL_STORAGE_KEY)
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if (localConfigStr){
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//check localstorage for a value
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let localConfig = JSON.parse(localConfigStr)
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currentScrutinyConfig = Object.assign({}, localConfig, currentScrutinyConfig) // make sure defaults are available if missing from localStorage.
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}
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currentScrutinyConfig.theme = this.determineTheme(currentScrutinyConfig);
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// Set the private defaults
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this._config = new BehaviorSubject(currentScrutinyConfig);
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}
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// -----------------------------------------------------------------------------------------------------
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// @ Accessors
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// -----------------------------------------------------------------------------------------------------
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/**
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* Setter and getter for config
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*/
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//Setter
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set config(value: any)
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{
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// Merge the new config over to the current config
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let config = _.merge({}, this._config.getValue(), value);
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//Store the config in localstorage
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localStorage.setItem(SCRUTINY_CONFIG_LOCAL_STORAGE_KEY, JSON.stringify(config));
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config.theme = this.determineTheme(config);
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// Execute the observable
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this._config.next(config);
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}
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//Getter
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get config$(): Observable<any>
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{
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return this._config.asObservable();
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}
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// -----------------------------------------------------------------------------------------------------
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// @ Private methods
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// -----------------------------------------------------------------------------------------------------
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/**
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* Checks if theme should be set to dark based on config & system settings
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*/
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private determineTheme(config:AppConfig): string {
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return (config.darkModeUseSystem && this.systemPrefersDark) ? "dark" : config.theme;
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}
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// -----------------------------------------------------------------------------------------------------
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// @ Public methods
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// -----------------------------------------------------------------------------------------------------
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/**
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* Resets the config to the default
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*/
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reset(): void
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{
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// Set the config
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this._config.next(this.config);
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}
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}
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