import QtQuick 2.12
import NERvGear.Preferences 1.0 as P

import "../../qml/api"

AdvpStyleTemplate {
    style: AdvpCanvasTemplate {
        readonly property var audioData: new Array(128)

        //configs
        readonly property int linePosition: configs["Line Position"]
        readonly property real maxRange: configs["Max Range"] / 100
        readonly property int uDataLen: Math.pow(2, configs["Data Length"])
        readonly property int dataLength: 64/uDataLen
        readonly property int channel: configs["Channel"]
        readonly property bool reverse: configs["Reverse"]
        readonly property bool rotateFlag: configs["Rotate"]
        readonly property real rSpeed: configs["Ratate Speed"] / 100
        readonly property real angle: configs["Angle"]
        readonly property bool autoNormalizing: configs["Data Settings"]["Auto Normalizing"]
        readonly property real amplitude: 400/configs["Data Settings"]["Amplitude"]
        readonly property int unitStyle: configs["Data Settings"]["Unit Style"]

        readonly property int total: channel*dataLength

        readonly property real dotGap: 360/total
        property real offsetAngle: 0
        property var outerPos: []
        property var innerPos: []
        readonly property real degUnit: Math.PI/180

        readonly property real subRatio: 0.2*maxRange
        readonly property real mainRatio: 1-subRatio*2.5

        readonly property real minLength: Math.min(width, height)
        readonly property real ratio:minLength*subRatio
        readonly property real halfWidth: width/2
        readonly property real halfHeight: height/2
        readonly property real halfMinLength: minLength/2


        onConfigsUpdated: {
            context.lineWidth = configs["Line Width"];
            context.strokeStyle = configs["Main Color"];
        }

        function createPoint() {
            outerPos.length = 0;
            innerPos.length = 0;
            let deg, deltaR, r1, r2, _rhmLen;
            _rhmLen = mainRatio*halfMinLength;

            for (let j=0; j < channel; j++) {
                for (let i=0; i < dataLength; i++) {
                    deg = degUnit*((i+j*dataLength)*dotGap + offsetAngle);
                    deltaR = audioData[reverse*(dataLength-i-1)+(!reverse)*(i+j*dataLength)] * ratio;
                    r1 = _rhmLen+1+deltaR*(linePosition!==2);
                    r2 = _rhmLen-1-deltaR*(linePosition!==1);
                    outerPos.push([halfWidth+Math.cos(deg)*r1,halfHeight+Math.sin(deg)*r1]);
                    innerPos.push([halfWidth+Math.cos(deg)*r2,halfHeight+Math.sin(deg)*r2]);
                }
            }
            offsetAngle = rotateFlag ? ((offsetAngle + rSpeed) % 360) : angle;
        }

        onAudioDataUpdeted: {
            let normalizing_ratio = autoNormalizing ? data[128] : amplitude;
            if (unitStyle) {
                //对数化显示
                for(let i=0; i<total; i++) {
                    audioData[i] = 0;
                    for(let j=0; j<uDataLen; j++) {
                        audioData[i] += Math.max(0, 0.4 * (Math.log10(data[i*uDataLen+j]/normalizing_ratio)) + 1.0);
                    }
                    audioData[i] /= uDataLen;
                }
            } else {
                //线性化显示
                for(let i=0; i<total; i++) {
                    audioData[i] = 0;
                    for(let j=0; j<uDataLen; j++) {
                        audioData[i] += data[i*uDataLen+j];
                    }
                    audioData[i] /= (uDataLen * normalizing_ratio);
                }
            }

            context.clearRect(0, 0, width+32, height+32);
            createPoint();

            context.beginPath();
            context.moveTo(outerPos[0][0], outerPos[0][1]);
            for(let i=0; i<total; i++) {
                context.lineTo(outerPos[i][0], outerPos[i][1]);
            }
            context.closePath();
            context.stroke();

            context.beginPath();
            context.moveTo(innerPos[0][0], innerPos[0][1]);
            for(let i=0; i<total; i++) {
                context.lineTo(innerPos[i][0], innerPos[i][1]);
            }
            context.closePath();
            context.stroke();

            context.beginPath();
            for(let i=0; i<total; i++) {
                context.moveTo(outerPos[i][0], outerPos[i][1]);
                context.lineTo(innerPos[i][0], innerPos[i][1]);
            }
            context.stroke();
            requestPaint();
        }

        Component.onCompleted: {
            for (let i = 0; i < 128; i++) {
                audioData[i] = 0;
            }
        }
    }

    defaultValues: {
        "Version": "1.1.0",
        "Main Color": "#ff4500",
        "Line Position": 0,
        "Line Width": 1,
        "Max Range": 50,
        "Data Length": 0,
        "Channel": 2,
        "Reverse": false,
        "Rotate": false,
        "Ratate Speed": 10,
        "Angle": 0,
        "Data Settings": {
            "Auto Normalizing": true,
            "Amplitude": 10,
            "Unit Style": 0
        }
    }

    preference: AdvpPreference {
        version: defaultValues["Version"]

        P.ColorPreference {
            name: "Main Color"
            label: qsTr("Spectrum Line Color")
            defaultValue: defaultValues["Main Color"]
        }

        P.SelectPreference {
            name: "Line Position"
            label: qsTr("Spectrum Line Position")
            defaultValue: defaultValues["Line Position"]
            model: [qsTr("Both"), qsTr("Outside"), qsTr("Inside")]
        }

        P.SliderPreference {
            name: "Line Width"
            label: qsTr("Spectrum Line Width")
            from: 0.1
            to: 10
            stepSize: 0.1
            defaultValue: defaultValues["Line Width"]
            displayValue: value.toFixed(1) + "px"
        }

        P.SliderPreference {
            name: "Max Range"
            label: qsTr("Max Amplitude")
            from: 0
            to: 100
            stepSize: 1
            defaultValue: defaultValues["Max Range"]
            displayValue: value + "%"
        }

        P.SelectPreference {
            name: "Data Length"
            label: qsTr("Spectrum Length")
            defaultValue: defaultValues["Data Length"]
            model: [64, 32, 16, 8]
        }

        P.Separator {}

        P.SpinPreference {
            name: "Channel"
            label: qsTr("Channel")
            message: "1 to 2"
            display: P.TextFieldPreference.ExpandLabel
            editable: false
            from: 1
            to: 2
            defaultValue: defaultValues["Channel"]
        }

        P.Separator {}

        P.SwitchPreference {
            name: "Reverse"
            label: qsTr("Reverse Spectrum")
            defaultValue: defaultValues["Reverse"]
        }

        P.Separator {}

        P.SwitchPreference {
            id: _cfg_preset_line_rotate
            name: "Rotate"
            label: qsTr("Auto Rotate")
            defaultValue: defaultValues["Rotate"]
        }

        P.SliderPreference {
            name: "Ratate Speed"
            label: qsTr("Ratate Speed")
            enabled: _cfg_preset_line_rotate.value
            from: 1
            to: 100
            stepSize: 1
            defaultValue: defaultValues["Ratate Speed"]
            displayValue: value + "%"
        }

        P.SpinPreference {
            name: "Angle"
            label: qsTr("Initial Angle")
            message: "0 to 359"
            enabled: !_cfg_preset_line_rotate.value
            display: P.TextFieldPreference.ExpandLabel
            editable: true
            from: 0
            to: 359
            defaultValue: defaultValues["Angle"]
        }

        P.Separator {}

        P.DialogPreference {
            name: "Data Settings"
            label: qsTr("Data Settings")
            live: true
            icon.name: "regular:\uf1de"

            P.SwitchPreference {
                id: _cfg_preset_circle_dataSettings_autoNormalizing
                name: "Auto Normalizing"
                label: qsTr("Auto Normalizing")
                defaultValue: defaultValues["Data Settings"]["Auto Normalizing"]
            }

            P.SpinPreference {
                name: "Amplitude"
                label: qsTr("Amplitude Ratio")
                enabled: !_cfg_preset_circle_dataSettings_autoNormalizing.value
                message: "1 to 100"
                display: P.TextFieldPreference.ExpandLabel
                editable: true
                from: 1
                to: 100
                defaultValue: defaultValues["Data Settings"]["Amplitude"]
            }

            P.Separator {}

            P.SelectPreference {
                name: "Unit Style"
                label: qsTr("Display Style")
                defaultValue: defaultValues["Data Settings"]["Unit Style"]
                model: [qsTr("Linear"), qsTr("Decibel")]
            }
        }
    }
}