export class TeamcityReporter {
    /**
     * Escape special characters for TeamCity service messages
     * https://www.jetbrains.com/help/teamcity/service-messages.html#Escaped+values
     */
    private static escape(str: string): string {
        return str
            .replace(/\|/g, "||")
            .replace(/'/g, "|'")
            .replace(/\n/g, "|n")
            .replace(/\r/g, "|r")
            .replace(/\[/g, "|[")
            .replace(/]/g, "|]");
    }

    public static reportSuiteStart(suiteName: string): void {
        console.log(`##teamcity[testSuiteStarted name='${this.escape(suiteName)}']`);
    }

    public static reportSuiteEnd(suiteName: string): void {
        console.log(`##teamcity[testSuiteFinished name='${this.escape(suiteName)}']`);
    }

    public static reportTestStart(testName: string): void {
        console.log(`##teamcity[testStarted name='${this.escape(testName)}']`);
    }

    public static reportTestFailed(testName: string, failureMessage: string, details: string, {comparisonFailure, expected, actual}: {comparisonFailure: boolean, expected: string, actual: string}): void {
        const attrs = [
            `name='${this.escape(testName)}'`,
            `message='${this.escape(failureMessage)}'`,
            `details='${this.escape(details)}'`
        ];
        
        if (comparisonFailure) {
            attrs.push(`type='comparisonFailure'`);
            attrs.push(`expected='${this.escape(expected)}'`);
            attrs.push(`actual='${this.escape(actual)}'`);
        }
        
        console.log(`##teamcity[testFailed ${attrs.join(' ')}]`);
    }

    public static reportTestEnd(testName: string, duration?: number): void {
        const durationAttr = duration !== undefined ? ` duration='${duration}'` : '';
        console.log(`##teamcity[testFinished name='${this.escape(testName)}'${durationAttr}]`);
    }

    public static reportTestError(testName: string, error: Error): void {
        const message = this.escape(error.message || 'Unknown error');
        const details = this.escape(error.stack || '');
        console.log(`##teamcity[testFailed name='${this.escape(testName)}' message='${message}' details='${details}']`);
    }

    public static reportTestIgnored(testName: string, message?: string): void {
        const msgAttr = message ? ` message='${this.escape(message)}'` : '';
        console.log(`##teamcity[testIgnored name='${this.escape(testName)}'${msgAttr}]`);
    }
}