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xseignard/thermalPrinter

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File printer.js has 387 lines of code (exceeds 250 allowed). Consider refactoring.
Open

'use strict';
var util = require('util'),
    EventEmitter = require('events').EventEmitter,
    fs = require('fs'),
    getPixels = require('get-pixels'),
Severity: Minor
Found in src/printer.js - About 5 hrs to fix

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

        printer.on('ready', function() {
        printer
            .printLine(codePage)
            .lineFeed(2)
            .print(function() {
    Severity: Major
    Found in demo/testSpecialCharacters.js and 1 other location - About 1 hr to fix
    demo/testChineseFirmware.js on lines 23..31

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 70.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Similar blocks of code found in 2 locations. Consider refactoring.
    Open

        printer.on('ready', function() {
        printer
            .printLine(testChars)
            .lineFeed(2)
            .print(function() {
    Severity: Major
    Found in demo/testChineseFirmware.js and 1 other location - About 1 hr to fix
    demo/testSpecialCharacters.js on lines 18..26

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 70.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Function printImage has 43 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

    Printer.prototype.printImage = function(path, type){
    var done = false;

    let params = [path]
    Severity: Minor
    Found in src/printer.js - About 1 hr to fix

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

      Printer.prototype.barcodeHeight = function(h) {
    if(h > 255 || h < 0) {
        throw new Error('Height must be 0 < height > 255');
    }
    var commands = [29, 104, h];
      Severity: Major
      Found in src/printer.js and 1 other location - About 1 hr to fix
      src/printer.js on lines 385..391

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 68.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Similar blocks of code found in 2 locations. Consider refactoring.
      Open

      Printer.prototype.barcodeTextPosition = function(pos) {
    if(pos > 3 || pos < 0) {
        throw new Error('Position must be 0, 1, 2 or 3');
    }
    var commands = [29, 72, pos];
      Severity: Major
      Found in src/printer.js and 1 other location - About 1 hr to fix
      src/printer.js on lines 395..401

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 68.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

      Function addText has 32 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      Printer.prototype.printText = Printer.prototype.addText = function (text) {
    var _self = this;
    var chars = text.split('');
    var commands = [];
      Severity: Minor
      Found in src/printer.js - About 1 hr to fix

        Function rgbToHsl has 26 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

        module.exports.rgbToHsl = function(r, g, b) {
    // bound values from 0 to 1
    r /= 255;
    g /= 255;
    b /= 255;
        Severity: Minor
        Found in src/helpers.js - About 1 hr to fix

          Function rgbToHsl has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
          Open

          module.exports.rgbToHsl = function(r, g, b) {
    // bound values from 0 to 1
    r /= 255;
    g /= 255;
    b /= 255;
          Severity: Minor
          Found in src/helpers.js - About 55 mins to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

          Printer.prototype.upsideDown = function(onOff){
    var commands = [27, 123, (onOff === true ? 1 : 0)];
    return this.writeCommands(commands);
};
          Severity: Minor
          Found in src/printer.js and 1 other location - About 55 mins to fix
          src/printer.js on lines 190..193

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 53.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

          Printer.prototype.small = function(onOff){
    var commands = [27, 33, (onOff === true ? 1 : 0)];
    return this.writeCommands(commands);
};
          Severity: Minor
          Found in src/printer.js and 1 other location - About 55 mins to fix
          src/printer.js on lines 195..198

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 53.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 4 locations. Consider refactoring.
          Open

              UPCA : {
        code: 65,
        size: function(n) { return n === 11 || n === 12; },
        chars: Printer.BARCODE_CHARSETS.NUMS
    },
          Severity: Major
          Found in src/printer.js and 3 other locations - About 45 mins to fix
          src/printer.js on lines 417..421
          src/printer.js on lines 422..426
          src/printer.js on lines 427..431

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 50.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 4 locations. Consider refactoring.
          Open

              UPCE : {
        code: 66,
        size: function(n) { return n === 11 || n === 12; },
        chars: Printer.BARCODE_CHARSETS.NUMS
    },
          Severity: Major
          Found in src/printer.js and 3 other locations - About 45 mins to fix
          src/printer.js on lines 412..416
          src/printer.js on lines 422..426
          src/printer.js on lines 427..431

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 50.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 4 locations. Consider refactoring.
          Open

              EAN8 : {
        code: 68,
        size: function(n) { return n === 7 || n === 8; },
        chars: Printer.BARCODE_CHARSETS.NUMS
    },
          Severity: Major
          Found in src/printer.js and 3 other locations - About 45 mins to fix
          src/printer.js on lines 412..416
          src/printer.js on lines 417..421
          src/printer.js on lines 422..426

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 50.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Avoid deeply nested control flow statements.
          Open

                                  if (brightness < 0.6) {
                            imgData[y][x] += (1 << n);
                        }
          Severity: Major
          Found in src/printer.js - About 45 mins to fix

            Similar blocks of code found in 4 locations. Consider refactoring.
            Open

                EAN13 : {
        code: 67,
        size: function(n) { return n === 12 || n === 13; },
        chars: Printer.BARCODE_CHARSETS.NUMS
    },
            Severity: Major
            Found in src/printer.js and 3 other locations - About 45 mins to fix
            src/printer.js on lines 412..416
            src/printer.js on lines 417..421
            src/printer.js on lines 427..431

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 50.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 2 locations. Consider refactoring.
            Open

            Printer.prototype.big = function (onOff) {
    return onOff ? this.addPrintMode(56) : this.removePrintMode(56);
};
            Severity: Minor
            Found in src/printer.js and 1 other location - About 35 mins to fix
            src/printer.js on lines 177..179

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 46.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Similar blocks of code found in 2 locations. Consider refactoring.
            Open

            Printer.prototype.bold = function (onOff) {
    return onOff ? this.addPrintMode(8) : this.removePrintMode(8);
};
            Severity: Minor
            Found in src/printer.js and 1 other location - About 35 mins to fix
            src/printer.js on lines 181..183

            Duplicated Code

            Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

            Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

            When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

            Tuning

            This issue has a mass of 46.

            We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

            The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

            If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

            See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

            Refactorings

            Further Reading

            Severity
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            Status
            Source
            Language