package lab.gatling;

import static io.gatling.javaapi.core.CoreDsl.*;
import static io.gatling.javaapi.http.HttpDsl.*;

import io.gatling.javaapi.core.FeederBuilder;
import io.gatling.javaapi.core.ScenarioBuilder;
import io.gatling.javaapi.core.Simulation;
import java.time.Duration;

/**
 * A scenario with a feeder, checks and a mix of injection steps.
 * Every user looks up two random symbols with a short think time in between.
 */
public class BasicSimulation extends Simulation {

    FeederBuilder<String> symbols = csv("data/symbols.csv").random();

    ScenarioBuilder browse = scenario("Browse quotes")
            .feed(symbols)
            .exec(http("get quote")
                    .get("/api/quote/#{symbol}")
                    .check(
                            status().is(200),
                            jmesPath("symbol").isEL("#{symbol}"),
                            jmesPath("price").ofDouble().gt(0.0)))
            .pause(Duration.ofMillis(200), Duration.ofMillis(500))
            .feed(symbols)
            .exec(http("get another quote")
                    .get("/api/quote/#{symbol}")
                    .check(status().is(200)));

    {
        setUp(browse.injectOpen(
                        atOnceUsers(5),
                        nothingFor(Duration.ofSeconds(2)),
                        rampUsers(20).during(Duration.ofSeconds(5)),
                        constantUsersPerSec(10).during(Duration.ofSeconds(10))))
                .protocols(Config.protocol())
                .assertions(
                        global().responseTime().percentile(95).lt(200),
                        global().successfulRequests().percent().gt(99.0));
    }
}