{
  "version": 3,
  "sources": ["src/app/core/services/script-loader.service.ts"],
  "sourcesContent": ["import { DOCUMENT } from '@angular/common';\nimport {\n    Inject,\n    Injectable,\n    makeStateKey,\n    OnDestroy,\n    TransferState,\n} from '@angular/core';\nimport { EnvironmentService } from '@core/services/environment.service';\nimport { Observable, Observer, of } from 'rxjs';\n\nexport interface ScriptModel {\n    src: string;\n    loaded: boolean;\n}\n\n@Injectable({\n    providedIn: 'root',\n})\nexport class ScriptLoaderService implements OnDestroy {\n    private scripts: ScriptModel[] = [];\n    private readonly scriptTransferStateKey = makeStateKey<ScriptModel[]>(\n        'SCRIPT_SERVICE_STATE'\n    );\n    constructor(\n        private environmentService: EnvironmentService,\n        private transferState: TransferState,\n        @Inject(DOCUMENT) private document: Document\n    ) {\n        if (this.environmentService.isBrowser()) {\n            this.scripts = this.transferState.get(\n                this.scriptTransferStateKey,\n                []\n            );\n        }\n    }\n\n    ngOnDestroy(): void {\n        if (this.environmentService.isServer()) {\n            this.transferState.set(this.scriptTransferStateKey, this.scripts);\n        }\n    }\n\n    public load(src: string, addSSR = false): Observable<ScriptModel> {\n        if (addSSR || this.environmentService.isBrowser()) {\n            return this.loadScript(src);\n        }\n        return of(null);\n    }\n\n    private loadScript(src: string) {\n        return new Observable<ScriptModel>(\n            (observer: Observer<ScriptModel>) => {\n                const existingScript = this.scripts.find(s => s.src === src);\n                // if no script is found, create a new one\n                if (!existingScript) {\n                    const script = {\n                        src: src,\n                        loaded: false,\n                    };\n                    this.scripts = [...this.scripts, script];\n\n                    // Load the script\n                    const scriptElement = this.document.createElement('script');\n                    scriptElement.setAttribute('type', 'text/javascript');\n                    scriptElement.setAttribute('async', 'async');\n                    scriptElement.setAttribute('src', src);\n\n                    scriptElement.onload = () => {\n                        this.scripts = this.scripts.map(currentScript =>\n                            currentScript.src === src\n                                ? { ...currentScript, loaded: true }\n                                : currentScript\n                        );\n                        observer.next(script);\n                        observer.complete();\n                    };\n\n                    scriptElement.onerror = () => {\n                        observer.error(\"Couldn't load script \" + src);\n                        observer.complete();\n                    };\n                    this.document.head.appendChild(scriptElement);\n                } else if (existingScript && existingScript.loaded) {\n                    // if script is found and loaded, return it\n                    observer.next(existingScript);\n                    observer.complete();\n                }\n                // if script is found but not loaded, wait for it to load\n            }\n        );\n    }\n}\n"],
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  "names": ["ScriptLoaderService", "constructor", "environmentService", "transferState", "document", "scripts", "scriptTransferStateKey", "isBrowser", "get", "ngOnDestroy", "isServer", "set", "load", "src", "addSSR", "loadScript", "of", "Observable", "observer", "existingScript", "find", "s", "loaded", "next", "complete", "script", "scriptElement", "createElement", "setAttribute", "onload", "map", "currentScript", "__spreadProps", "__spreadValues", "onerror", "error", "head", "appendChild", "\u0275\u0275inject", "EnvironmentService", "TransferState", "DOCUMENT", "factory", "\u0275fac", "providedIn"]
}