import {VoiceEntry, StemDirectionType} from "./VoiceEntry";
import {SourceStaffEntry} from "./SourceStaffEntry";
import {Fraction} from "../../Common/DataObjects/Fraction";
import {Pitch} from "../../Common/DataObjects/Pitch";
import {Beam} from "./Beam";
import {Tuplet} from "./Tuplet";
import {Tie} from "./Tie";
import {Staff} from "./Staff";
import {Slur} from "./Expressions/ContinuousExpressions/Slur";
import {NoteState} from "../Graphical/DrawingEnums";
import {Notehead} from "./Notehead";
import {Arpeggio} from "./Arpeggio";

/**
 * Represents a single pitch with a duration (length)
 */
export class Note {

    constructor(voiceEntry: VoiceEntry, parentStaffEntry: SourceStaffEntry, length: Fraction, pitch: Pitch) {
        this.voiceEntry = voiceEntry;
        this.parentStaffEntry = parentStaffEntry;
        this.length = length;
        this.pitch = pitch;
        if (pitch !== undefined) {
            this.halfTone = pitch.getHalfTone();
        } else {
          this.halfTone = 0;
        }
    }

    /**
     * The transposed (!!!) HalfTone of this note.
     */
    public halfTone: number;
    public state: NoteState;
    private voiceEntry: VoiceEntry;
    private parentStaffEntry: SourceStaffEntry;
    private length: Fraction;
    /** The length/duration given in the <type> tag. different from length for tuplets/tremolos. */
    private typeLength: Fraction;
    /** The amount of notes the tuplet of this note (if there is one) replaces. */
    private normalNotes: number;
    /**
     * The untransposed (!!!) source data.
     */
    private pitch: Pitch;
    private beam: Beam;
    private tuplet: Tuplet;
    private tie: Tie;
    private slurs: Slur[] = [];
    private playbackInstrumentId: string = undefined;
    private notehead: Notehead = undefined;
    /** States whether the note should be displayed. False if xmlNode.attribute("print-object").value = "no". */
    private printObject: boolean = true;
    /** The Arpeggio this note is part of. */
    private arpeggio: Arpeggio;
    /** States whether this is a cue note (Stichnote) (smaller size). */
    private isCueNote: boolean;
    /** The stem direction asked for in XML. Not necessarily final or wanted stem direction. */
    private stemDirectionXml: StemDirectionType;
    /** The number of tremolo strokes this note has (16th tremolo = 2 strokes).
     * Could be a Tremolo object in future when there is more data like tremolo between two notes.
     */
    private tremoloStrokes: number;
    /** Color of the stem given in the XML Stem tag. RGB Hexadecimal, like #00FF00.
     * This is not used for rendering, which takes VoiceEntry.StemColor.
     * It is merely given in the note's stem element in XML and stored here for reference.
     * So, to read or change the stem color of a note, modify note.ParentVoiceEntry.StemColor.
     */
    private stemColorXml: string;
    /** Color of the notehead given in the XML Notehead tag. RGB Hexadecimal, like #00FF00.
     * This should not be changed, instead noteheadColor is used and modifiable for Rendering.
     * Needs to be stored here and not in Note.Notehead,
     * because Note.Notehead is undefined for normal Noteheads to save space and time.
     */
    private noteheadColorXml: string;
    /** Color of the notehead currently set. RGB Hexadecimal, like #00FF00.
     * Needs to be stored here and not in Note.Notehead,
     * because Note.Notehead is undefined for normal Noteheads to save space and time.
     */
    private noteheadColor: string;

    public get ParentVoiceEntry(): VoiceEntry {
        return this.voiceEntry;
    }
    public set ParentVoiceEntry(value: VoiceEntry) {
        this.voiceEntry = value;
    }
    public get ParentStaffEntry(): SourceStaffEntry {
        return this.parentStaffEntry;
    }
    public get ParentStaff(): Staff {
        return this.parentStaffEntry.ParentStaff;
    }
    public get Length(): Fraction {
        return this.length;
    }
    public set Length(value: Fraction) {
        this.length = value;
    }
    public get TypeLength(): Fraction {
        return this.typeLength;
    }
    public set TypeLength(value: Fraction) {
        this.typeLength = value;
    }
    public get NormalNotes(): number {
        return this.normalNotes;
    }
    public set NormalNotes(value: number) {
        this.normalNotes = value;
    }
    public get Pitch(): Pitch {
        return this.pitch;
    }
    public get NoteBeam(): Beam {
        return this.beam;
    }
    public set NoteBeam(value: Beam) {
        this.beam = value;
    }
    public set Notehead(value: Notehead) {
        this.notehead = value;
    }
    public get Notehead(): Notehead {
        return this.notehead;
    }
    public get NoteTuplet(): Tuplet {
        return this.tuplet;
    }
    public set NoteTuplet(value: Tuplet) {
        this.tuplet = value;
    }
    public get NoteTie(): Tie {
        return this.tie;
    }
    public set NoteTie(value: Tie) {
        this.tie = value;
    }
    public get NoteSlurs(): Slur[] {
        return this.slurs;
    }
    public set NoteSlurs(value: Slur[]) {
        this.slurs = value;
    }
    public get PlaybackInstrumentId(): string {
        return this.playbackInstrumentId;
    }
    public set PlaybackInstrumentId(value: string) {
        this.playbackInstrumentId = value;
    }
    public get PrintObject(): boolean {
        return this.printObject;
    }
    public set PrintObject(value: boolean) {
        this.printObject = value;
    }
    public get Arpeggio(): Arpeggio {
        return this.arpeggio;
    }
    public set Arpeggio(value: Arpeggio) {
        this.arpeggio = value;
    }
    public get IsCueNote(): boolean {
        return this.isCueNote;
    }
    public set IsCueNote(value: boolean) {
        this.isCueNote = value;
    }
    public get StemDirectionXml(): StemDirectionType {
        return this.stemDirectionXml;
    }
    public set StemDirectionXml(value: StemDirectionType) {
        this.stemDirectionXml = value;
    }
    public get TremoloStrokes(): number {
        return this.tremoloStrokes;
    }
    public set TremoloStrokes(value: number) {
        this.tremoloStrokes = value;
    }
    public get StemColorXml(): string {
        return this.stemColorXml;
    }
    public set StemColorXml(value: string) {
        this.stemColorXml = value;
    }
    public get NoteheadColorXml(): string {
        return this.noteheadColorXml;
    }
    public set NoteheadColorXml(value: string) {
        this.noteheadColorXml = value;
    }
    public get NoteheadColor(): string {
        return this.noteheadColor;
    }
    public set NoteheadColor(value: string) {
        this.noteheadColor = value;
    }

    public isRest(): boolean {
        return this.Pitch === undefined;
    }

    public ToString(): string {
        if (this.pitch !== undefined) {
            return this.Pitch.ToString() + ", length: " + this.length.toString();
        } else {
          return "rest note, length: " + this.length.toString();
        }
    }
    public getAbsoluteTimestamp(): Fraction {
        return Fraction.plus(
            this.voiceEntry.Timestamp,
            this.parentStaffEntry.VerticalContainerParent.ParentMeasure.AbsoluteTimestamp
        );
    }
    public checkForDoubleSlur(slur: Slur): boolean {
        for (let idx: number = 0, len: number = this.slurs.length; idx < len; ++idx) {
            const noteSlur: Slur = this.slurs[idx];
            if (
              noteSlur.StartNote !== undefined &&
              noteSlur.EndNote !== undefined &&
              slur.StartNote !== undefined &&
              slur.StartNote === noteSlur.StartNote &&
              noteSlur.EndNote === this
            ) { return true; }
        }
        return false;
    }
}

export enum Appearance {
    Normal,
    Grace,
    Cue
}