UrlUtils.java

package com.tevinjeffrey.rutgersct.rutgersapi.utils;


import com.tevinjeffrey.rutgersct.rutgersapi.model.Course;
import com.tevinjeffrey.rutgersct.rutgersapi.model.Request;

import java.util.LinkedHashMap;
import java.util.Map;

public class UrlUtils {

    private final static String FIRST_LEVEL = "Undergraduate";
    private final static String SECOND_LEVEL = "Graduate";
    private final static String FIRST_LEVEL_ID = "U";
    private final static String SECOND_LEVEL_ID = "G";
    private final static String FIRST_LOCATION = "New Brunswick";
    private final static String SECOND_LOCATION = "Newark";
    private final static String THIRD_LOCATION = "Camden";
    private final static String FIRST_LOCATION_ID = "NB";
    private final static String SECOND_LOCATION_ID = "NK";
    private final static String THIRD_LOCATION_ID = "CM";

    public UrlUtils() {
    }

    private static String parseSemester(SemesterUtils.Semester semester) {
        return semester.getSeason().getCode() + semester.getYear();
    }

    private static String getSemester(Request request) {
        return parseSemester(request.getSemester());

    }

    private static String parseLocations(Iterable<String> loc) {
        StringBuilder location = new StringBuilder();

        for (String s : loc) {
            switch (s) {
                case FIRST_LOCATION:
                    append(location, FIRST_LOCATION_ID);
                    break;
                case SECOND_LOCATION:
                    append(location, SECOND_LOCATION_ID);
                    break;
                case THIRD_LOCATION:
                    append(location, THIRD_LOCATION_ID);
                    break;
                default:
                    append(location, FIRST_LOCATION_ID);
                    append(location, SECOND_LOCATION_ID);
                    append(location, THIRD_LOCATION_ID);
                    break;
            }
        }

        return location.toString();
    }

    private static String getLocations(Request request) {
        return parseLocations(request.getLocations());
    }

    private static String parseLevels(Iterable<String> lvls) {
        StringBuilder level = new StringBuilder();

        for (String s : lvls) {
            switch (s) {
                case FIRST_LEVEL:
                    append(level, FIRST_LEVEL_ID);
                    break;
                case SECOND_LEVEL:
                    append(level, SECOND_LEVEL_ID);
                    break;
                default:
                    append(level, FIRST_LEVEL_ID);
                    append(level, SECOND_LEVEL_ID);
                    break;
            }
        }
        return level.toString();
    }

    private static String getLevels(Request request) {
        return parseLevels(request.getLevels());
    }

    private static void appendComma(StringBuilder sb) {
        sb.append(",");
    }

    private static void append(StringBuilder sb, String loc) {
        if (sb.length() != 0)
            appendComma(sb);
        sb.append(loc);
    }

    public static String buildParamUrl(Request request) {
        return "subject=" + request.getSubject()
                + "&" + "semester="
                + getSemester(request)
                + "&" + "campus="
                + getLocations(request)
                + "&" + "level="
                + getLevels(request);
    }

    public static Map<String, String> buildSubjectQuery(Request request) {
        //The order of the parameters matter when send the request >:(
        Map<String, String> query = new LinkedHashMap<>(3);
        query.put("semester", getSemester(request));
        query.put("campus", getLocations(request));
        query.put("level", getLevels(request));
        return query;
    }

    public static Map<String, String> buildCourseQuery(Request request) {
        //The order of the parameters matter when send the request >:(
        Map<String, String> query = new LinkedHashMap<>(4);
        query.put("subject", request.getSubject());
        query.put("semester", getSemester(request));
        query.put("campus", getLocations(request));
        query.put("level", getLevels(request));
        return query;
    }

    public static String getAbbreviatedLocationName(String s) {
        switch (s) {
            case FIRST_LOCATION:
                return FIRST_LOCATION_ID;
            case SECOND_LOCATION:
                return SECOND_LOCATION_ID;
            case THIRD_LOCATION:
                return THIRD_LOCATION_ID;
            default:
                return null;
        }
    }

    private static String createSearchUrl(String query, Course.Section s) {
        return s.getToStringInstructors("+OR+") + query;
    }

    public static String getGoogleUrl(Course.Section s) {
        String query = "+rutgers";
        return createSearchUrl(query, s);
    }

}