{"version":3,"sources":["src/app/services/theme.service.ts"],"sourcesContent":["import {Injectable} from '@angular/core';\n\nexport enum ThemeType {\n  default = 'default',\n  dark = 'dark',\n}\n\n@Injectable({\n  providedIn: 'root',\n})\nexport class ThemeService {\n  currentTheme = ThemeType.default;\n\n  public init() {\n    const theme = localStorage.getItem('theme');\n\n    if (theme) {\n      this.currentTheme = JSON.parse(theme);\n      this.loadTheme(true).then();\n    } else {\n      this.currentTheme = ThemeType.default;\n      this.loadTheme(true).then();\n    }\n  }\n\n  private reverseTheme(theme: string): ThemeType {\n    return theme === ThemeType.dark ? ThemeType.default : ThemeType.dark;\n  }\n\n  private removeUnusedTheme(theme: ThemeType): void {\n    document.documentElement.classList.remove(theme);\n\n    const removedThemeStyle = document.getElementById(theme);\n    if (removedThemeStyle) {\n      document.head.removeChild(removedThemeStyle);\n    }\n  }\n\n  private loadCss(href: string, id: string): Promise<Event> {\n    return new Promise((resolve, reject) => {\n      const style = document.createElement('link');\n      style.rel = 'stylesheet';\n      style.href = href;\n      style.id = id;\n      style.onload = resolve;\n      style.onerror = reject;\n      document.head.append(style);\n    });\n  }\n\n  public loadTheme(firstLoad = true): Promise<Event> {\n    const theme = this.currentTheme;\n\n    if (firstLoad) {\n      document.documentElement.classList.add(theme);\n    }\n\n    return new Promise<Event>((resolve, reject) => {\n      this.loadCss(`${theme}.css`, theme).then(\n        (e) => {\n          if (!firstLoad) {\n            document.documentElement.classList.add(theme);\n          }\n          this.removeUnusedTheme(this.reverseTheme(theme));\n          resolve(e);\n        },\n        (e) => reject(e),\n      );\n    });\n  }\n\n  public toggleTheme(): Promise<Event> {\n    this.currentTheme = this.reverseTheme(this.currentTheme);\n    localStorage.setItem('theme', JSON.stringify(this.currentTheme));\n    return this.loadTheme(false);\n  }\n}\n"],"names":["ThemeType","ThemeService","constructor","currentTheme","default","init","theme","localStorage","getItem","JSON","parse","loadTheme","then","reverseTheme","dark","removeUnusedTheme","document","documentElement","classList","remove","removedThemeStyle","getElementById","head","removeChild","loadCss","href","id","Promise","resolve","reject","style","createElement","rel","onload","onerror","append","firstLoad","add","e","toggleTheme","setItem","stringify","factory","ɵfac","providedIn","_ThemeService"],"mappings":";;wCAEA,IAAYA,EAAZ,SAAYA,EAAS,CACnBA,OAAAA,EAAA,QAAA,UACAA,EAAA,KAAA,OAFUA,CAGZ,EAHYA,GAAS,CAAA,CAAA,EAQRC,GAAY,IAAA,CAAnB,IAAOA,EAAP,MAAOA,CAAY,CAHzBC,aAAA,CAIE,KAAAC,aAAeH,EAAUI,QAElBC,MAAI,CACT,IAAMC,EAAQC,aAAaC,QAAQ,OAAO,EAEtCF,GACF,KAAKH,aAAeM,KAAKC,MAAMJ,CAAK,EACpC,KAAKK,UAAU,EAAI,EAAEC,KAAI,IAEzB,KAAKT,aAAeH,EAAUI,QAC9B,KAAKO,UAAU,EAAI,EAAEC,KAAI,EAE7B,CAEQC,aAAaP,EAAa,CAChC,OAAOA,IAAUN,EAAUc,KAAOd,EAAUI,QAAUJ,EAAUc,IAClE,CAEQC,kBAAkBT,EAAgB,CACxCU,SAASC,gBAAgBC,UAAUC,OAAOb,CAAK,EAE/C,IAAMc,EAAoBJ,SAASK,eAAef,CAAK,EACnDc,GACFJ,SAASM,KAAKC,YAAYH,CAAiB,CAE/C,CAEQI,QAAQC,EAAcC,EAAU,CACtC,OAAO,IAAIC,QAAQ,CAACC,EAASC,IAAU,CACrC,IAAMC,EAAQd,SAASe,cAAc,MAAM,EAC3CD,EAAME,IAAM,aACZF,EAAML,KAAOA,EACbK,EAAMJ,GAAKA,EACXI,EAAMG,OAASL,EACfE,EAAMI,QAAUL,EAChBb,SAASM,KAAKa,OAAOL,CAAK,CAC5B,CAAC,CACH,CAEOnB,UAAUyB,EAAY,GAAI,CAC/B,IAAM9B,EAAQ,KAAKH,aAEnB,OAAIiC,GACFpB,SAASC,gBAAgBC,UAAUmB,IAAI/B,CAAK,EAGvC,IAAIqB,QAAe,CAACC,EAASC,IAAU,CAC5C,KAAKL,QAAQ,GAAGlB,CAAK,OAAQA,CAAK,EAAEM,KACjC0B,GAAK,CACCF,GACHpB,SAASC,gBAAgBC,UAAUmB,IAAI/B,CAAK,EAE9C,KAAKS,kBAAkB,KAAKF,aAAaP,CAAK,CAAC,EAC/CsB,EAAQU,CAAC,CACX,EACCA,GAAMT,EAAOS,CAAC,CAAC,CAEpB,CAAC,CACH,CAEOC,aAAW,CAChB,YAAKpC,aAAe,KAAKU,aAAa,KAAKV,YAAY,EACvDI,aAAaiC,QAAQ,QAAS/B,KAAKgC,UAAU,KAAKtC,YAAY,CAAC,EACxD,KAAKQ,UAAU,EAAK,CAC7B,yCAjEWV,EAAY,wBAAZA,EAAYyC,QAAZzC,EAAY0C,UAAAC,WAFX,MAAM,CAAA,EAEd,IAAO3C,EAAP4C,SAAO5C,CAAY,GAAA","debug_id":"7a8db937-0ec2-55d5-b5b3-a2f1c56a7b76"}