public with sharing class CalloutAssistantController {
    public Integer maxRounds { get; set; }
    public String teamToAdd { get; set; }
    public RoundWrapper roundToAdd { get; set; }
    public Integer fixturePositionToAdd { get; set; }
    public String playedRoundsBody { get; set; }
    public String rawResponseText { get; set; }
    public List<TeamWrapper> teamList { get; set; }
    public List<RoundWrapper> roundList { get; set; }
    public FixtureResponse fixtureResponse { get; set; }
    public String debugString { get; set; }
    public CalloutAssistantController() {
        maxRounds = 0;
        teamToAdd = '';
        fixturePositionToAdd = null;
        playedRoundsBody = '';
        teamList = new List<TeamWrapper>();
        roundList = new List<RoundWrapper>();
        rawResponseText = 'Please submit request';
        debugString = '';

    }
    public void addTeam() {
        teamList.add(new teamWrapper(teamToAdd, fixturePositionToAdd));
        debugString = JSON.serializePretty(new FixtureRequest(maxRounds, teamList, roundList));
        teamToAdd = '';
        fixturePositionToAdd = null;
    }
    public void cleanList() {
        teamList = new List<TeamWrapper>();
    }
    public void submitRequest() {
        FixtureRequest request = new FixtureRequest(maxRounds, teamList, roundList);
        fixtureResponse = new FixtureResponse(request);
        fixtureResponse.submitRequest();
    }
    public class FixtureRequest {
        public Integer maxRounds { get; set; }
        public Map<String, Integer> teams { get; set; }
        public List<RoundWrapper> playedRounds { get; set; }
        public FixtureRequest() {
            this.maxRounds = null;
            this.teams = new Map<String, Integer>();
            this.playedRounds = new List<RoundWrapper>();
        }
        public FixtureRequest(Integer maxRounds, List<TeamWrapper> submittedTeams, List<RoundWrapper> playedRounds) {
            this.maxRounds = maxRounds;
            this.teams = new Map<String, Integer>();
            for (TeamWrapper team : submittedTeams) {
                this.teams.put(team.teamName, team.fixturePosition);
            }
            this.playedRounds = playedRounds;
        }
    }
    public class FixtureResponse {
        public Boolean success { get; set; }
        public String errorString { get; set; }
        public String requestString { get; set; }
        public String rawResponseText { get; set; }
        public List<FixtureWrapper> fixtureList { get; set; }

        public FixtureResponse(FixtureRequest newRequest) {
            this.requestString = JSON.serialize(newRequest);
            fixtureList = new List<FixtureWrapper>();
        }
        public void submitRequest() {
            try {
                HttpResponse response = HTTPCallout.sendRequest('http://perl-fixture-equalisation.herokuapp.com/fixture', 'POST', requestString, 'fixtureGeneration');
                rawResponseText = response.getBody();
                parseResponse();
            } catch (Exception e) {
                HTTPCallout.apiCallLogEntry.ResponseBody__c = e.getMessage();
                HTTPCallout.insertLogs();
            }
            HTTPCallout.insertLogs();

        }
        public void parseResponse() {
            Map<String, Object> root = (Map<String, Object>) JSON.deserializeUntyped(rawResponseText);
            success = (String) root.get('status') == 'success';
            if (!success) {
                errorString = (String) root.get('error');
            } else {
                List<Object> fixtures = (List<Object>) root.get('rounds');
                for (Object fixtureObject : fixtures) {
                    Map<String, Object> fixtureMap = (Map<String, Object>) fixtureObject;
                    FixtureWrapper fixture = new FixtureWrapper();
                    fixture.name = (String) fixtureMap.get('name');
                    List <Object> matches = (List<Object>) fixtureMap.get('matches');
                    for (Object matchObject : matches) {
                        Map<String, Object> matchMap = (Map<String, Object>) matchObject;
                        fixture.matches.add(new MatchWrapper((String) matchMap.get('home'), (String) matchMap.get('away')));
                    }
                    fixtureList.add(fixture);
                }
            }
        }
    }
    public class FixtureWrapper {
        public String name { get; set; }
        public List<MatchWrapper> matches { get; set; }
        public FixtureWrapper() {
            this.name = '';
            this.matches = new List<MatchWrapper>();
        }
    }

    public class MatchWrapper {
        public String home { get; set; }
        public String away { get; set; }
        public MatchWrapper(String home, String away) {
            this.home = home;
            this.away = away;
        }
    }
    public class TeamWrapper {
        public String teamName { get; set; }
        public Integer fixturePosition { get; set; }
        public TeamWrapper(String teamName, Integer fixturePosition) {
            this.teamName = teamName;
            this.fixturePosition = fixturePosition;
        }
    }

    public class RoundWrapper {
        public List<MatchWrapper> matches { get; set; }
        public List<String> name { get; set; }
        public RoundWrapper(List<MatchWrapper> matches) {
            this.matches = matches;
            this.name = null;
        }
    }
}