var log4js = require('log4js');
var machineInfo = require('./global');

function validate(data) {
    // 公用协议校验
    // HEADER部分
    //TODO 待完善
}
function asiciiToString (arr) {
    let str = ''
    if(arr.length >0) {
        for(var i of arr) {
            str += String.fromCharCode(i)
        }
    }
    return str
}

Buffer.prototype.toByteArray = function () {
    return Array.prototype.slice.call(this, 0)
}
const logger = log4js.getLogger('protocal');

module.exports = {
    reconTest: function (data) {
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        //console.log(asiciiToString(sn))
        json.device = asiciiToString(sn);
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    rePressReset:function(data){
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        json.device = sn;
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    reStopScan:function(data) {
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        json.device = sn;
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    reSocketPressReStart:function (data) {
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        json.device = asiciiToString(sn);
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    pressScanAbnormal:function(data) {
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        json.device = sn;
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    reCheckCamera:function (data) {
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        json.device = sn;
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    equipmentFault:function (data) {
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        json.device = sn;
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    faultRepaired:function (data) {
        let json = {};
        let snLength = data[5] - 1
        let sn = data.slice(6, 6 + snLength).toByteArray();
        json.device = sn;
        machineInfo.sn = sn;
        json.status = data[6 + snLength];
        return json;
    },
    standArea: function (data) {
        let json = {};
        json.standArea = data[5 + data[5]];
        return json;
    },
    pressCop: function (data) {
        let json = {};
        json.pressCop = {};
        json.pressCop.leftFoot = {};
        let temp = []
        for (let index = 0; index < 2; index++) {
            let dataArray = [];
            for (let i = 0; i < 8; i++) {
                dataArray.push(data[10 + index * 8 + i]);
            }
            let ratio = new Float64Array(new Uint8Array(dataArray).buffer)[0];
            temp.push(ratio);
        }
        json.pressCop.leftFoot.x = temp[0];
        json.pressCop.leftFoot.y = temp[1];
        json.pressCop.rightFoot = {};
        let temp2 = []
        for (let index = 0; index < 2; index++) {
            let dataArray = [];
            for (let i = 0; i < 8; i++) {
                dataArray.push(data[26 + index * 8 + i]);
            }
            let ratio2 = new Float64Array(new Uint8Array(dataArray).buffer)[0];
            temp2.push(ratio2);
        }
        json.pressCop.rightFoot.x = temp2[0];
        json.pressCop.rightFoot.y = temp2[1];
        json.pressCop.body = {};
        let temp3 = []
        for (let index = 0; index < 2; index++) {
            let dataArray = [];
            for (let i = 0; i < 8; i++) {
                dataArray.push(data[42 + index * 8 + i]);
            }
            let ratio3 = new Float64Array(new Uint8Array(dataArray).buffer)[0];
            temp3.push(ratio3);
        }
        json.pressCop.body.x = temp3[0];
        json.pressCop.body.y = temp3[1];
        json.pressCop.bbody = {}
        let temp4 = []
        for (let index = 0; index < 2; index++) {
            let dataArray = [];
            for (let i = 0; i < 8; i++) {
                dataArray.push(data[58 + index * 8 + i]);
            }
            let ratio4 = new Float64Array(new Uint8Array(dataArray).buffer)[0];
            temp4.push(ratio4);
        }
        json.pressCop.bbody.x = temp4[0];
        json.pressCop.bbody.y = temp4[1];
        return json;
    },
    pressRatio: function (data) {
        let json = {};
        json.line = {};
        json.line.leftLine = [];
        for (let index = 11; index < 19; index = index + 4) {
            let line = [];
            line.push({ "x": data[index], "y": data[index + 1] });
            line.push({ "x": data[index + 2], "y": data[index + 3] });
            json.line.leftLine.push(line);
        }
        json.line.rightLine = [];
        for (let index = 19; index < 27; index = index + 4) {
            json.line.rightLine.push([{ "x": data[index], "y": data[index + 1] }, {
                "x": data[index + 2],
                "y": data[index + 3]
            }]);
        }
        json.pressRatio = {};
        json.pressRatio.area = {};
        json.pressRatio.area.left = [];
        for (let index = 0; index < 3; index++) {
            let dataArray = [];
            for (let i = 0; i < 8; i++) {
                dataArray.push(data[27 + index * 8 + i]);
            }
            let ratio = new Float64Array(new Uint8Array(dataArray).buffer)[0];
            json.pressRatio.area.left.push(ratio);
        }
        json.pressRatio.area.right = [];
        for (let index = 0; index < 3; index++) {
            let dataArray = [];
            for (let i = 0; i < 8; i++) {
                dataArray.push(data[51 + index * 8 + i]);
            }
            let ratio = new Float64Array(new Uint8Array(dataArray).buffer)[0];
            json.pressRatio.area.right.push(ratio);
        }
        {
            let dataArray = [];
            for (let i = 0; i < 8; i++) {
                dataArray.push(data[75 + i]);
            }
            json.pressRatio.general = new Float64Array(new Uint8Array(dataArray).buffer)[0];
        }
        return json;
    },
    pressure: function (data) {
        let validNumByteArray = new Uint8Array(data.slice(10, 14));
        let validNum = new DataView(validNumByteArray.buffer).getInt32();
        let json = {};
        var offset = 14;
        json.pressureData = [];
        //json.temp = [];
        for (let j =0;j<60;j++) {
            json.pressureData[j] = []
            for (let k =0;k<60;k++) {
               json.pressureData[j][k] = 0
            }
        }
        for (let i = 0; i < validNum; i++) {
            json.pressureData[data[offset + i * 3 + 1]][data[offset + i * 3]] = data[offset + i * 3 + 2]
            //let press = { x: data[offset + i * 3 + 1]*11, y: data[offset + i * 3]*10, value: data[offset + i * 3 + 2]};
            //json.temp.push(press);
            //json.pressureData.push(press)
        }
        // 点数放大1.2倍 横坐标值放大9倍 纵坐标值放大8倍
       // json.pressureData = pressureDataProcess(json.pressureData,1.2,9)
        return json;
    },


    buf2hex:function(buffer) {
        // create a byte array (Uint8Array) that we can use to read the array buffer
        const byteArray = new Uint8Array(buffer);
        // for each element, we want to get its two-digit hexadecimal representation
        const hexParts = [];
        for(let i = 0; i < byteArray.length; i++) {
            // convert value to hexadecimal
            const hex = byteArray[i].toString(16);
            // pad with zeros to length 2
            const paddedHex = ('00' + hex).slice(-2);
            // push to array
            hexParts.push(paddedHex);
        }

        // join all the hex values of the elements into a single string
        return hexParts.join('');
    }

}
// 压力值扩散方法
function pressureDataProcess(a,scale,size) {
    var height = 60;
    var width = 60;
    var newHeight = 60*scale;
    var newWidth = 60*scale;
    var u =0.0;
    var v = 0.0;
    var x = 0.0;
    var y = 0.0;
    var m = 0;
    var n = 0;
    let temp = new Array()
    let rearr = []
    for(let i = 0;i<newHeight;++i) {
        temp[i] = new Array()
        for(let j=0;j<newWidth;++j) {
            y = i/scale;
            x = j/scale;
            m = parseInt(y);
            n = parseInt(x);
            v = y-m;
            u = x-n;
            let tt = {}
            if(m<height-1 &&n<width-1){
                temp[i][j] = parseInt((1.0-v)*((1.0-u)*a[m][n]+u*a[m][n+1])
                    + v*((1.0-u)*a[m+1][n] + u*a[m+1][n+1])
                )
            } else {
                temp[i][j] = a[m][n]
            }
            tt.x = i*size
            tt.y = j*size
            if(temp[i][j]>0) {
                tt.value = temp[i][j]
                rearr.push(tt)
            }
        }
    }
    return rearr

}
function randomFrom(lowerValue = 180,upperValue = 250)
{
    return Math.floor(Math.random() * (upperValue - lowerValue + 1) + lowerValue);
}