import { performance, PerformanceEntry } from 'perf_hooks';

export class MrCliPerformance {
    constructor() {
        //this.markCreateStart();
    }

    public markEntry = () => {
        performance.mark(this.l('create', 'start'));
    };

    public markExit = () => {
        performance.mark(this.l('create', 'end'));
    };

    // CreateCliProgramDefinition
    public markBeforeCreateCliProgramDefinition = () => {
        performance.mark('mr-cli:CreateCliProgramDefinition:start');
    };
    public markAfterCreateCliProgramDefinition = () => {
        performance.mark('mr-cli:CreateCliProgramDefinition:end');
    };

    // StartMrProgram
    public markBeforeStartMrProgram = () => {
        performance.mark('mr-cli:startMrProgram:start');
    };
    public markAfterStartMrProgram = () => {
        performance.mark('mr-cli:startMrProgram:end');
    };

    // StartMrProgram
    public markBeforePreParseGlobalOptions = () => {
        performance.mark('mr-preparse:start');
    };
    public markAfterPreParseGlobalOptions = () => {
        performance.mark('mr-preparse:end');
    };

    // RunCommand
    public markBeforeRunCommand = () => {};
    public markAfterRunCommand = () => {
        // rt.renderReport('c:\\Temp', cliEnv.logger);
    };

    public measure = () => {
        const dl = method => `mr-cli ${method}`;
        const l = this.l;
        const measure = method => performance.measure(dl(method), l(method, 'start'), l(method, 'end'));

        measure('load');
        measure('initConfig');
        measure('createdHook');
        measure('create');
    };

    private l = (method: string, action: 'start' | 'end' = 'start') => {
        return `mr-cli.${method}.${action}`;
    };
}