source: PerfectFit/Dialog/src/main/java/tudelft/mentalhealth/perfectfit/updatefuncs/Example.java

package tudelft.mentalhealth.perfectfit.updatefuncs;

import java.io.IOException;
import java.util.Arrays;
import java.util.List;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import tudelft.dialogmanager.parameters.Parameters;
import tudelft.dialogmanager.parameters.StringValue;
import tudelft.dialogmanager.updatefunctions.UpdateFunction;
import tudelft.mentalhealth.perfectfit.Characteristics;
import tudelft.mentalhealth.perfectfit.GoalLine;
import tudelft.mentalhealth.perfectfit.SortedGoals;

/**
 * function that fetches the intro and goalhow text from the database and stores
 * it in given fields. Also stores current time. This function assumes that the
 * 10 parameters godin_activity ..... household_size have all been been set
 * properly to their non-normalized values.
 */
public class Example implements UpdateFunction {

        private final Integer nr;
        private final String introfieldname;
        private final String goalhowfieldname;

        /**
         * @param nr               get the nr-th best example. 0 is best, 1 is next
         *                         best etc.
         * @param introfieldname   the field name where to store the intro text
         * @param goalhowfieldname the field name where to store the goalhow text
         * @throws IOException
         */
        @JsonCreator
        public Example(@JsonProperty("nr") Integer nr,
                        @JsonProperty("introfieldname") String introfieldname,
                        @JsonProperty("goalhowfieldname") String goalhowfieldname)
                        throws IOException {
                this.nr = nr;
                this.introfieldname = introfieldname;
                this.goalhowfieldname = goalhowfieldname;

        }

        @Override
        public Parameters call(Parameters parameters) {
                try {
//                      System.out.println("user params:" + parameters);
                        Characteristics characteristics = Characteristics.normalize(
                                        parameters.getDouble("godin_activity"),
                                        parameters.getDouble("exercise_se"),
                                        parameters.getDouble("exercise_identity"),
                                        parameters.getDouble("extraversion"),
                                        parameters.getDouble("ttm_pa"),
                                        parameters.getDouble("openness_to_experiences"),
                                        parameters.getDouble("sitting_weekend"),
                                        parameters.getDouble("age"),
                                        parameters.getDouble("household_income"),
                                        parameters.getDouble("household_size"));
                        SortedGoals goals = new SortedGoals(characteristics);
                        GoalLine goal = goals.get(nr);
                        return parameters
                                        .with(introfieldname,
                                                        new StringValue(
                                                                        "🧍<em> " + goal.getIntro() + "</em>"))
                                        .with(goalhowfieldname, new StringValue("🎯 <b>"
                                                        + goal.getGoal() + goal.getHow() + "</b>"));

                } catch (IOException e) {
                        throw new RuntimeException("Bug. ", e);
                }

        }

        @Override
        public List<String> getAssignedParameters() {
                return Arrays.asList(introfieldname, goalhowfieldname);
        }

}