import { of as observableOf, Subject } from "rxjs";

import { take, first, skip } from "rxjs/operators";

import { NodeHelper } from "../helper/NodeHelper.spec";

import { ICoreNode } from "../../src/API";
import {
    Graph,
    GraphMode,
    GraphService,
    IEdgeStatus,
    Node,
    Sequence,
} from "../../src/Graph";
import API from "../../src/api/API";

describe("GraphService.ctor", () => {
    it("should create a graph service", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        const graphService: GraphService = new GraphService(graph);

        expect(graphService).toBeDefined();
    });
});

describe("GraphService.cacheBoundingBox$", () => {
    it("should call cache bounding box on graph", (done: Function) => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        const cacheBoundingBoxSpy: jasmine.Spy = spyOn(graph, "cacheBoundingBox$");
        cacheBoundingBoxSpy.and.returnValue(observableOf([]));

        const graphService: GraphService = new GraphService(graph);

        graphService.cacheBoundingBox$({ lat: 0, lon: 1 }, { lat: 2, lon: 3 })
            .subscribe(
                (nodes: Node[]): void => {
                    expect(cacheBoundingBoxSpy.calls.count()).toBe(1);
                    expect(cacheBoundingBoxSpy.calls.argsFor(0)[0].lat).toBe(0);
                    expect(cacheBoundingBoxSpy.calls.argsFor(0)[0].lon).toBe(1);
                    expect(cacheBoundingBoxSpy.calls.argsFor(0)[1].lat).toBe(2);
                    expect(cacheBoundingBoxSpy.calls.argsFor(0)[1].lon).toBe(3);

                    done();
                });
    });
});

describe("GraphService.cacheSequence$", () => {
    it("should cache sequence when graph does not have sequence", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingSequence").and.returnValue(false);
        spyOn(graph, "hasSequence").and.returnValue(false);

        const cacheSequence$: Subject<Graph> = new Subject<Graph>();
        const cacheSequenceSpy: jasmine.Spy = spyOn(graph, "cacheSequence$");
        cacheSequenceSpy.and.returnValue(cacheSequence$);

        const getSequenceSpy: jasmine.Spy = spyOn(graph, "getSequence");
        getSequenceSpy.and.returnValue(graph);

        const graphService: GraphService = new GraphService(graph);

        graphService.cacheSequence$("sequenceKey").subscribe(() => { /*noop*/ });

        cacheSequence$.next(graph);

        expect(cacheSequenceSpy.calls.count()).toBe(1);
        expect(getSequenceSpy.calls.count()).toBe(1);
    });

    it("should cache sequence when graph is caching sequence", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingSequence").and.returnValue(true);
        spyOn(graph, "hasSequence").and.returnValue(false);

        const cacheSequence$: Subject<Graph> = new Subject<Graph>();
        const cacheSequenceSpy: jasmine.Spy = spyOn(graph, "cacheSequence$");
        cacheSequenceSpy.and.returnValue(cacheSequence$);

        const getSequenceSpy: jasmine.Spy = spyOn(graph, "getSequence");
        getSequenceSpy.and.returnValue(graph);

        const graphService: GraphService = new GraphService(graph);

        graphService.cacheSequence$("sequenceKey").subscribe(() => { /*noop*/ });

        cacheSequence$.next(graph);

        expect(cacheSequenceSpy.calls.count()).toBe(1);
        expect(getSequenceSpy.calls.count()).toBe(1);
    });

    it("should not cache sequence when graph have sequence", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingSequence").and.returnValue(false);
        spyOn(graph, "hasSequence").and.returnValue(true);

        const cacheSequence$: Subject<Graph> = new Subject<Graph>();
        const cacheSequenceSpy: jasmine.Spy = spyOn(graph, "cacheSequence$");
        cacheSequenceSpy.and.returnValue(cacheSequence$);

        const getSequenceSpy: jasmine.Spy = spyOn(graph, "getSequence");
        getSequenceSpy.and.returnValue(graph);

        const graphService: GraphService = new GraphService(graph);

        graphService.cacheSequence$("sequenceKey").subscribe(() => { /*noop*/ });

        cacheSequence$.next(graph);

        expect(cacheSequenceSpy.calls.count()).toBe(0);
        expect(getSequenceSpy.calls.count()).toBe(1);
    });
});

describe("GraphService.cacheSequenceNodes$", () => {
    it("should cache sequence nodes when graph does not have sequence nodes", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingSequence").and.returnValue(false);
        spyOn(graph, "hasSequence").and.returnValue(true);
        spyOn(graph, "isCachingSequenceNodes").and.returnValue(false);
        spyOn(graph, "hasSequenceNodes").and.returnValue(false);

        const cacheSequenceNodes$: Subject<Graph> = new Subject<Graph>();
        const cacheSequenceNodesSpy: jasmine.Spy = spyOn(graph, "cacheSequenceNodes$");
        cacheSequenceNodesSpy.and.returnValue(cacheSequenceNodes$);

        const getSequenceSpy: jasmine.Spy = spyOn(graph, "getSequence");
        getSequenceSpy.and.returnValue(new Sequence({ key: "skey", keys: [] }));

        const graphService: GraphService = new GraphService(graph);

        graphService.cacheSequenceNodes$("sequenceKey").subscribe(() => { /*noop*/ });

        cacheSequenceNodes$.next(graph);

        expect(cacheSequenceNodesSpy.calls.count()).toBe(1);
        expect(getSequenceSpy.calls.count()).toBe(1);
    });

    it("should cache sequence nodes when graph is caching sequence nodes", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingSequence").and.returnValue(false);
        spyOn(graph, "hasSequence").and.returnValue(true);
        spyOn(graph, "isCachingSequenceNodes").and.returnValue(true);
        spyOn(graph, "hasSequenceNodes").and.returnValue(false);

        const cacheSequenceNodes$: Subject<Graph> = new Subject<Graph>();
        const cacheSequenceNodesSpy: jasmine.Spy = spyOn(graph, "cacheSequenceNodes$");
        cacheSequenceNodesSpy.and.returnValue(cacheSequenceNodes$);

        const getSequenceSpy: jasmine.Spy = spyOn(graph, "getSequence");
        getSequenceSpy.and.returnValue(new Sequence({ key: "skey", keys: [] }));

        const graphService: GraphService = new GraphService(graph);

        graphService.cacheSequenceNodes$("sequenceKey").subscribe(() => { /*noop*/ });

        cacheSequenceNodes$.next(graph);

        expect(cacheSequenceNodesSpy.calls.count()).toBe(1);
        expect(getSequenceSpy.calls.count()).toBe(1);
    });

    it("should not cache sequence nodes when graph has sequence nodes", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingSequence").and.returnValue(false);
        spyOn(graph, "hasSequence").and.returnValue(true);
        spyOn(graph, "isCachingSequenceNodes").and.returnValue(false);
        spyOn(graph, "hasSequenceNodes").and.returnValue(true);

        const cacheSequenceNodes$: Subject<Graph> = new Subject<Graph>();
        const cacheSequenceNodesSpy: jasmine.Spy = spyOn(graph, "cacheSequenceNodes$");
        cacheSequenceNodesSpy.and.returnValue(cacheSequenceNodes$);

        const getSequenceSpy: jasmine.Spy = spyOn(graph, "getSequence");
        getSequenceSpy.and.returnValue(new Sequence({ key: "skey", keys: [] }));

        const graphService: GraphService = new GraphService(graph);

        graphService.cacheSequenceNodes$("sequenceKey").subscribe(() => { /*noop*/ });

        cacheSequenceNodes$.next(graph);

        expect(cacheSequenceNodesSpy.calls.count()).toBe(0);
        expect(getSequenceSpy.calls.count()).toBe(1);
    });

    it("should supply reference node key if present", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingSequence").and.returnValue(false);
        spyOn(graph, "hasSequence").and.returnValue(true);
        spyOn(graph, "isCachingSequenceNodes").and.returnValue(true);
        spyOn(graph, "hasSequenceNodes").and.returnValue(false);

        const cacheSequenceNodes$: Subject<Graph> = new Subject<Graph>();
        const cacheSequenceNodesSpy: jasmine.Spy = spyOn(graph, "cacheSequenceNodes$");
        cacheSequenceNodesSpy.and.returnValue(cacheSequenceNodes$);

        const getSequenceSpy: jasmine.Spy = spyOn(graph, "getSequence");
        getSequenceSpy.and.returnValue(new Sequence({ key: "skey", keys: [] }));

        const graphService: GraphService = new GraphService(graph);

        const sequenceKey: string = "sequenceKey";
        const referenceNodeKey: string = "referenceNodeKey";
        graphService.cacheSequenceNodes$(sequenceKey, referenceNodeKey).subscribe(() => { /*noop*/ });

        cacheSequenceNodes$.next(graph);

        expect(cacheSequenceNodesSpy.calls.count()).toBe(1);
        expect(cacheSequenceNodesSpy.calls.first().args[0]).toBe(sequenceKey);
        expect(cacheSequenceNodesSpy.calls.first().args[1]).toBe(referenceNodeKey);
        expect(getSequenceSpy.calls.count()).toBe(1);
    });
});

describe("GraphService.graphMode$", () => {
    it("should start in spatial graph mode", (done: () => void) => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        const graphService: GraphService = new GraphService(graph);

        graphService.graphMode$.pipe(
            first())
            .subscribe(
                (mode: GraphMode): void => {
                    expect(mode).toBe(GraphMode.Spatial);
                    done();
                });
    });

    it("should set sequence mode", (done: () => void) => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        const graphService: GraphService = new GraphService(graph);

        graphService.graphMode$.pipe(
            skip(1),
            first())
            .subscribe(
                (mode: GraphMode): void => {
                    expect(mode).toBe(GraphMode.Sequence);
                    done();
                });

        graphService.setGraphMode(GraphMode.Sequence);
    });

    it("should not apply mode if same as current", (done: () => void) => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        const graphService: GraphService = new GraphService(graph);

        let firstEmit: boolean = true;
        graphService.graphMode$.pipe(
            skip(1),
            take(2))
            .subscribe(
                (mode: GraphMode): void => {
                    if (firstEmit) {
                        expect(mode).toBe(GraphMode.Sequence);
                        firstEmit = false;
                    } else {
                        expect(mode).toBe(GraphMode.Spatial);
                        done();
                    }
                });

        graphService.setGraphMode(GraphMode.Sequence);
        graphService.setGraphMode(GraphMode.Sequence);
        graphService.setGraphMode(GraphMode.Spatial);
    });

    it("should cancel spatial edge caching when setting graph mode to sequence", () => {
        spyOn(console, "error").and.stub();

        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        const cacheFullSpy: jasmine.Spy = spyOn(graph, "cacheFull$");
        cacheFullSpy.and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheNodeSequence$").and.returnValue(cacheNodeSequence$);

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const hasSpatialAreaSpy: jasmine.Spy = spyOn(graph, "hasSpatialArea").and.stub();

        const graphService: GraphService = new GraphService(graph);

        let helper: NodeHelper = new NodeHelper();
        const node: TestNode = new TestNode(helper.createCoreNode());
        node.spatialEdges.cached = false;

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        const cacheAssetsSpy: jasmine.Spy = spyOn(node, "cacheAssets$");
        cacheAssetsSpy.and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key)
            .subscribe(
                (n: Node): void => {
                    expect(n).toBeDefined();
                });

        cacheFull$.next(graph);

        node.assetsCached = true;
        cacheAssets$.next(node);

        graphService.setGraphMode(GraphMode.Sequence);

        cacheTiles$[0].next(graph);

        expect(hasSpatialAreaSpy.calls.count()).toBe(0);
    });
});

class TestNode extends Node {
    private _assetsCached: boolean;
    private _sequenceEdges: IEdgeStatus;
    private _spatialEdges: IEdgeStatus;

    constructor(core: ICoreNode) {
        super(core);

        this._assetsCached = false;
        this._sequenceEdges = { cached: false, edges: [] };
        this._spatialEdges = { cached: false, edges: [] };
    }

    public get assetsCached(): boolean {
        return this._assetsCached;
    }

    public set assetsCached(value: boolean) {
        this._assetsCached = value;
    }

    public get sequenceEdges(): IEdgeStatus {
        return this._sequenceEdges;
    }

    public get spatialEdges(): IEdgeStatus {
        return this._spatialEdges;
    }
}

describe("GraphService.cacheNode$", () => {
    let helper: NodeHelper;

    beforeEach(() => {
        helper = new NodeHelper();
    });

    it("should cache and return node", (done: Function) => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        const cacheFullSpy: jasmine.Spy = spyOn(graph, "cacheFull$");
        cacheFullSpy.and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        const initializeCacheSpy: jasmine.Spy = spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheNodeSequence$").and.returnValue(cacheNodeSequence$);

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        const cacheAssetsSpy: jasmine.Spy = spyOn(node, "cacheAssets$");
        cacheAssetsSpy.and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key)
            .subscribe(
                (n: Node): void => {
                    expect(cacheFullSpy.calls.count()).toBe(1);
                    expect(initializeCacheSpy.calls.count()).toBe(1);
                    expect(cacheAssetsSpy.calls.count()).toBe(1);

                    done();
                });

        cacheFull$.next(graph);

        node.assetsCached = true;
        cacheAssets$.next(node);
    });

    it("should fill and return node", (done: Function) => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(true);
        spyOn(graph, "isCachingFill").and.returnValue(false);

        const cacheFill$: Subject<Graph> = new Subject<Graph>();
        const cacheFillSpy: jasmine.Spy = spyOn(graph, "cacheFill$");
        cacheFillSpy.and.returnValue(cacheFill$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheNodeSequence$").and.returnValue(cacheNodeSequence$);

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        const cacheAssetsSpy: jasmine.Spy = spyOn(node, "cacheAssets$");
        cacheAssetsSpy.and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key)
            .subscribe(
                (n: Node): void => {
                    expect(cacheFillSpy.calls.count()).toBe(1);

                    done();
                });

        cacheFill$.next(graph);

        node.assetsCached = true;
        cacheAssets$.next(node);
    });

    it("should cache node sequence and sequence edges", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheFull$").and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        const cacheNodeSequenceSpy: jasmine.Spy = spyOn(graph, "cacheNodeSequence$");
        cacheNodeSequenceSpy.and.returnValue(cacheNodeSequence$);

        const cacheSequenceEdgesSpy: jasmine.Spy = spyOn(graph, "cacheSequenceEdges").and.stub();

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        spyOn(node, "cacheAssets$").and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key).subscribe(() => { /*noop*/ });

        cacheFull$.next(graph);

        cacheNodeSequence$.next(graph);

        expect(cacheNodeSequenceSpy.calls.count()).toBe(1);
        expect(cacheNodeSequenceSpy.calls.first().args.length).toBe(1);
        expect(cacheNodeSequenceSpy.calls.first().args[0]).toBe(node.key);

        expect(cacheSequenceEdgesSpy.calls.count()).toBe(1);
        expect(cacheSequenceEdgesSpy.calls.first().args.length).toBe(1);
        expect(cacheSequenceEdgesSpy.calls.first().args[0]).toBe(node.key);
    });

    it("should cache spatial edges", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheFull$").and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(true);

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(true);

        spyOn(graph, "hasTiles").and.returnValue(true);
        spyOn(graph, "hasSpatialArea").and.returnValue(true);

        const cacheSpatialEdgesSpy: jasmine.Spy = spyOn(graph, "cacheSpatialEdges").and.stub();

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());
        node.sequenceEdges.cached = true;

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        spyOn(node, "cacheAssets$").and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key).subscribe(() => { /*noop*/ });

        cacheFull$.next(graph);

        expect(cacheSpatialEdgesSpy.calls.count()).toBe(1);
        expect(cacheSpatialEdgesSpy.calls.first().args.length).toBe(1);
        expect(cacheSpatialEdgesSpy.calls.first().args[0]).toBe(node.key);
    });

    it("should cache spatial edges if in spatial mode", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheFull$").and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(true);

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(true);

        const hasTilesSpy: jasmine.Spy = spyOn(graph, "hasTiles");
        hasTilesSpy.and.returnValue(true);

        spyOn(graph, "hasSpatialArea").and.returnValue(true);

        const cachesSpatialEdgesSpy: jasmine.Spy = spyOn(graph, "cacheSpatialEdges").and.stub();

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());
        node.sequenceEdges.cached = true;

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        spyOn(node, "cacheAssets$").and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.setGraphMode(GraphMode.Spatial);

        graphService.cacheNode$(node.key).subscribe(() => { /*noop*/ });

        cacheFull$.next(graph);

        expect(hasTilesSpy.calls.count()).toBe(1);
        expect(cachesSpatialEdgesSpy.calls.count()).toBe(1);
    });

    it("should not cache spatial edges if in sequence mode", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheFull$").and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(true);

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(true);

        const hasTilesSpy: jasmine.Spy = spyOn(graph, "hasTiles").and.stub();

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());
        node.sequenceEdges.cached = true;

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        spyOn(node, "cacheAssets$").and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.setGraphMode(GraphMode.Sequence);

        graphService.cacheNode$(node.key).subscribe(() => { /*noop*/ });

        cacheFull$.next(graph);

        expect(hasTilesSpy.calls.count()).toBe(0);
    });
});

describe("GraphService.reset$", () => {
    let helper: NodeHelper;

    beforeEach(() => {
        helper = new NodeHelper();
    });

    it("should abort node caching and throw", () => {
        spyOn(console, "error").and.stub();

        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        const cacheFullSpy: jasmine.Spy = spyOn(graph, "cacheFull$");
        cacheFullSpy.and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        const initializeCacheSpy: jasmine.Spy = spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheNodeSequence$").and.returnValue(cacheNodeSequence$);

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        const cacheAssetsSpy: jasmine.Spy = spyOn(node, "cacheAssets$");
        cacheAssetsSpy.and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key)
            .subscribe(
                (n: Node): void => { return; },
                (e: Error): void => {
                    expect(e).toBeDefined();
                });

        graphService.reset$([]);

        cacheFull$.next(graph);

        node.assetsCached = true;
        cacheAssets$.next(node);

        expect(cacheFullSpy.calls.count()).toBe(1);
        expect(initializeCacheSpy.calls.count()).toBe(0);
        expect(cacheAssetsSpy.calls.count()).toBe(0);
    });

    it("should cancel sequence edge caching", () => {
        spyOn(console, "error").and.stub();

        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        const cacheFullSpy: jasmine.Spy = spyOn(graph, "cacheFull$");
        cacheFullSpy.and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheNodeSequence$").and.returnValue(cacheNodeSequence$);

        const cacheSequenceEdgesSpy: jasmine.Spy = spyOn(graph, "cacheSequenceEdges").and.stub();

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());
        node.spatialEdges.cached = false;

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        const cacheAssetsSpy: jasmine.Spy = spyOn(node, "cacheAssets$");
        cacheAssetsSpy.and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key)
            .subscribe(
                (n: Node): void => {
                    expect(n).toBeDefined();
                });

        cacheFull$.next(graph);

        node.assetsCached = true;
        cacheAssets$.next(node);

        graphService.reset$([]);

        cacheNodeSequence$.next(graph);

        expect(cacheSequenceEdgesSpy.calls.count()).toBe(0);
    });

    it("should cancel spatial edge caching", () => {
        spyOn(console, "error").and.stub();

        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        const cacheFullSpy: jasmine.Spy = spyOn(graph, "cacheFull$");
        cacheFullSpy.and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheNodeSequence$").and.returnValue(cacheNodeSequence$);

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const hasSpatialAreaSpy: jasmine.Spy = spyOn(graph, "hasSpatialArea").and.stub();

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());
        node.spatialEdges.cached = false;

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        const cacheAssetsSpy: jasmine.Spy = spyOn(node, "cacheAssets$");
        cacheAssetsSpy.and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key)
            .subscribe(
                (n: Node): void => {
                    expect(n).toBeDefined();
                });

        cacheFull$.next(graph);

        node.assetsCached = true;
        cacheAssets$.next(node);

        graphService.reset$([]);

        cacheTiles$[0].next(graph);

        expect(hasSpatialAreaSpy.calls.count()).toBe(0);
    });
});

describe("GraphService.setFilter$", () => {
    let helper: NodeHelper;

    beforeEach(() => {
        helper = new NodeHelper();
    });

    it("should reset spatial edges and set filter", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        const resetSpatialEdgesSpy: jasmine.Spy = spyOn(graph, "resetSpatialEdges").and.stub();
        const setFilterSpy: jasmine.Spy = spyOn(graph, "setFilter").and.stub();

        const graphService: GraphService = new GraphService(graph);

        graphService.setFilter$(["==", "sequenceKey", "skey"]).subscribe(() => { /*noop*/ });

        expect(resetSpatialEdgesSpy.calls.count()).toBe(1);

        expect(setFilterSpy.calls.count()).toBe(1);
        expect(setFilterSpy.calls.first().args.length).toBe(1);
        expect(setFilterSpy.calls.first().args[0].length).toBe(3);
        expect(setFilterSpy.calls.first().args[0][0]).toBe("==");
        expect(setFilterSpy.calls.first().args[0][1]).toBe("sequenceKey");
        expect(setFilterSpy.calls.first().args[0][2]).toBe("skey");
    });

    it("should cancel spatial subscriptions", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        spyOn(graph, "isCachingFull").and.returnValue(false);
        spyOn(graph, "hasNode").and.returnValue(false);

        const cacheFull$: Subject<Graph> = new Subject<Graph>();
        const cacheFullSpy: jasmine.Spy = spyOn(graph, "cacheFull$");
        cacheFullSpy.and.returnValue(cacheFull$);

        spyOn(graph, "hasInitializedCache").and.returnValue(false);
        spyOn(graph, "initializeCache").and.stub();

        spyOn(graph, "isCachingNodeSequence").and.returnValue(false);
        spyOn(graph, "hasNodeSequence").and.returnValue(false);

        const cacheNodeSequence$: Subject<Graph> = new Subject<Graph>();
        spyOn(graph, "cacheNodeSequence$").and.returnValue(cacheNodeSequence$);

        spyOn(graph, "hasTiles").and.returnValue(false);

        const cacheTiles$: Subject<Graph>[] = [new Subject<Graph>()];
        spyOn(graph, "cacheTiles$").and.returnValue(cacheTiles$);

        const hasSpatialAreaSpy: jasmine.Spy = spyOn(graph, "hasSpatialArea").and.stub();

        spyOn(graph, "resetSpatialEdges").and.stub();
        spyOn(graph, "setFilter").and.stub();

        const graphService: GraphService = new GraphService(graph);

        const node: TestNode = new TestNode(helper.createCoreNode());
        node.spatialEdges.cached = false;

        const cacheAssets$: Subject<Node> = new Subject<Node>();
        const cacheAssetsSpy: jasmine.Spy = spyOn(node, "cacheAssets$");
        cacheAssetsSpy.and.returnValue(cacheAssets$);

        spyOn(graph, "getNode").and.returnValue(node);

        graphService.cacheNode$(node.key)
            .subscribe(
                (n: Node): void => {
                    expect(n).toBeDefined();
                });

        cacheFull$.next(graph);

        node.assetsCached = true;
        cacheAssets$.next(node);

        graphService.setFilter$(["==", "sequenceKey", "skey"]).subscribe(() => { /*noop*/ });

        cacheTiles$[0].next(graph);

        expect(hasSpatialAreaSpy.calls.count()).toBe(0);
    });
});

describe("GraphService.uncache$", () => {
    it("should call graph uncache", () => {
        const api: API = new API(undefined);
        const graph: Graph = new Graph(api);

        const uncacheSpy: jasmine.Spy = spyOn(graph, "uncache").and.stub();

        const graphService: GraphService = new GraphService(graph);

        graphService.uncache$(["nKey"], "sKey").subscribe(() => { /*noop*/ });

        expect(uncacheSpy.calls.count()).toBe(1);
        expect(uncacheSpy.calls.first().args.length).toBe(2);
        expect(uncacheSpy.calls.first().args[0].length).toBe(1);
        expect(uncacheSpy.calls.first().args[0][0]).toBe("nKey");
        expect(uncacheSpy.calls.first().args[1]).toBe("sKey");
    });
});