import * as vscode from "vscode";

import {canReachGitHubAPI} from "../api/canReachGitHubAPI";

import {SettingsRepoNode, getSettingNodes} from "./settings/settingsRepoNode";

import {EnvironmentNode} from "./settings/environmentNode";

import {EnvironmentsNode} from "./settings/environmentsNode";

import {RepoSecretsNode} from "./settings/repoSecretsNode";

import {SecretsNode} from "./settings/secretsNode";

import {SettingsExplorerNode} from "./settings/types";

import {getGitHubContext} from "../git/repository";

import {RepoVariablesNode} from "./settings/repoVariablesNode";

import {VariablesNode} from "./settings/variablesNode";

import {EnvironmentSecretsNode} from "./settings/environmentSecretsNode";

import {EnvironmentVariablesNode} from "./settings/environmentVariablesNode";

import {OrgVariablesNode} from "./settings/orgVariablesNode";

import {OrgSecretsNode} from "./settings/orgSecretsNode";

import {GitHubAPIUnreachableNode} from "./shared/gitHubApiUnreachableNode";

export class SettingsTreeProvider implements vscode.TreeDataProvider<SettingsExplorerNode> {

private _onDidChangeTreeData = new vscode.EventEmitter<SettingsExplorerNode | null>();

readonly onDidChangeTreeData = this._onDidChangeTreeData.event;

async refresh(): Promise<void> {

// Don't delete all the nodes if we can't reach GitHub API

if (await canReachGitHubAPI()) {

this._onDidChangeTreeData.fire(null);

} else {

await vscode.window.showWarningMessage("Unable to refresh, could not reach GitHub API");

}

}

getTreeItem(element: SettingsExplorerNode): vscode.TreeItem | Thenable<vscode.TreeItem> {

return element;

}

async getChildren(element?: SettingsExplorerNode | undefined): Promise<SettingsExplorerNode[]> {

const gitHubContext = await getGitHubContext();

if (!gitHubContext) {

return [new GitHubAPIUnreachableNode()];

}

if (!element) {

if (gitHubContext.repos.length > 0) {

if (gitHubContext.repos.length == 1) {

return getSettingNodes(gitHubContext.repos[0]);

}

return gitHubContext.repos.map(r => new SettingsRepoNode(r));

}

}

if (element instanceof SettingsRepoNode) {

return element.getSettings();

}

//

// Secrets

//

if (element instanceof SecretsNode) {

return element.nodes;

}

if (element instanceof RepoSecretsNode || element instanceof OrgSecretsNode) {

return element.getSecrets();

}

//

// Variables

//

if (element instanceof VariablesNode) {

return element.nodes;

}

if (element instanceof RepoVariablesNode || element instanceof OrgVariablesNode) {

return element.getVariables();

}

//

// Environments

//

if (element instanceof EnvironmentsNode) {

return element.getEnvironments();

}

if (element instanceof EnvironmentNode) {

return element.getNodes();

}

if (element instanceof EnvironmentSecretsNode) {

return element.getSecrets();

}

if (element instanceof EnvironmentVariablesNode) {

return element.getVariables();

}

return [];

}

}