import * as ko from "knockout";
import * as Constants from "../../Common/Constants";
import * as DataModels from "../../Contracts/DataModels";
import * as ViewModels from "../../Contracts/ViewModels";
import { Action, ActionModifiers } from "../../Shared/Telemetry/TelemetryConstants";
import * as TelemetryProcessor from "../../Shared/Telemetry/TelemetryProcessor";
import { userContext } from "../../UserContext";
import { useTabs } from "../../hooks/useTabs";
import Explorer from "../Explorer";
import DocumentsTab from "../Tabs/DocumentsTab";
import { NewQueryTab } from "../Tabs/QueryTab/QueryTab";
import TabsBase from "../Tabs/TabsBase";
import { useDatabases } from "../useDatabases";
import { useSelectedNode } from "../useSelectedNode";
import DocumentId from "./DocumentId";

export default class ResourceTokenCollection implements ViewModels.CollectionBase {
  public nodeKind: string;
  public container: Explorer;
  public databaseId: string;
  public self: string;
  public rid: string;
  public rawDataModel: DataModels.Collection;
  public partitionKey: DataModels.PartitionKey;
  public partitionKeyProperties: string[];
  public partitionKeyPropertyHeaders: string[];
  public id: ko.Observable<string>;
  public children: ko.ObservableArray<ViewModels.TreeNode>;
  public selectedSubnodeKind: ko.Observable<ViewModels.CollectionTabKind>;
  public isCollectionExpanded: ko.Observable<boolean>;

  constructor(container: Explorer, databaseId: string, data: DataModels.Collection) {
    this.nodeKind = "Collection";
    this.container = container;
    this.databaseId = databaseId;
    this.self = data._self;
    this.rid = data._rid;
    this.rawDataModel = data;
    this.partitionKey = data.partitionKey;

    this.id = ko.observable(data.id);
    this.children = ko.observableArray<ViewModels.TreeNode>([]);
    this.selectedSubnodeKind = ko.observable<ViewModels.CollectionTabKind>();
    this.isCollectionExpanded = ko.observable<boolean>(true);
  }

  public expandCollection(): void {
    if (this.isCollectionExpanded()) {
      return;
    }

    this.isCollectionExpanded(true);
    TelemetryProcessor.trace(Action.ExpandTreeNode, ActionModifiers.Mark, {
      description: "Collection node",

      databaseName: this.databaseId,
      collectionName: this.id(),

      dataExplorerArea: Constants.Areas.ResourceTree,
    });
  }

  public collapseCollection() {
    if (!this.isCollectionExpanded()) {
      return;
    }

    this.isCollectionExpanded(false);
    TelemetryProcessor.trace(Action.CollapseTreeNode, ActionModifiers.Mark, {
      description: "Collection node",

      databaseName: this.databaseId,
      collectionName: this.id(),

      dataExplorerArea: Constants.Areas.ResourceTree,
    });
  }

  public onNewQueryClick(source: any, event: MouseEvent, queryText?: string) {
    const collection: ViewModels.Collection = source.collection || source;
    const id = useTabs.getState().getTabs(ViewModels.CollectionTabKind.Query).length + 1;
    const title = "Query " + id;
    const startKey: number = TelemetryProcessor.traceStart(Action.Tab, {
      databaseName: this.databaseId,
      collectionName: this.id(),

      dataExplorerArea: Constants.Areas.Tab,
      tabTitle: title,
    });

    useTabs.getState().activateNewTab(
      new NewQueryTab(
        {
          tabKind: ViewModels.CollectionTabKind.Query,
          title: title,
          tabPath: "",
          collection: this,
          node: this,
          queryText: queryText,
          partitionKey: collection.partitionKey,
          onLoadStartKey: startKey,
        },
        { container: this.container }
      )
    );
  }

  public onDocumentDBDocumentsClick() {
    useSelectedNode.getState().setSelectedNode(this);
    this.selectedSubnodeKind(ViewModels.CollectionTabKind.Documents);
    TelemetryProcessor.trace(Action.SelectItem, ActionModifiers.Mark, {
      description: "Documents node",
      databaseName: this.databaseId,
      collectionName: this.id(),

      dataExplorerArea: Constants.Areas.ResourceTree,
    });

    const documentsTabs: DocumentsTab[] = useTabs
      .getState()
      .getTabs(
        ViewModels.CollectionTabKind.Documents,
        (tab: TabsBase) =>
          tab.collection?.id() === this.id() &&
          (tab.collection as ViewModels.CollectionBase).databaseId === this.databaseId
      ) as DocumentsTab[];
    let documentsTab: DocumentsTab = documentsTabs && documentsTabs[0];

    if (documentsTab) {
      useTabs.getState().activateTab(documentsTab);
    } else {
      const startKey: number = TelemetryProcessor.traceStart(Action.Tab, {
        databaseName: this.databaseId,
        collectionName: this.id(),

        dataExplorerArea: Constants.Areas.Tab,
        tabTitle: "Items",
      });

      documentsTab = new DocumentsTab({
        partitionKey: this.partitionKey,
        resourceTokenPartitionKey: userContext.parsedResourceToken?.partitionKey,
        documentIds: ko.observableArray<DocumentId>([]),
        tabKind: ViewModels.CollectionTabKind.Documents,
        title: "Items",
        collection: this,
        node: this,
        tabPath: `${this.databaseId}>${this.id()}>Documents`,
        onLoadStartKey: startKey,
      });

      useTabs.getState().activateNewTab(documentsTab);
    }
  }

  public getDatabase(): ViewModels.Database {
    return useDatabases.getState().findDatabaseWithId(this.databaseId);
  }
}