1 | ;
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2 |
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3 | // Dependencies
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4 | const sift = require("sift")
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5 | , isThere = require("is-there")
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6 | , abs = require("abs")
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7 | , rJson = require("r-json")
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8 | , wJson = require("w-json")
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9 | ;
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10 |
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11 | // Constants
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12 | const DEFAULT_PATH = abs("~/.ideas.json");
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13 |
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14 | /**
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15 | * Idea
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16 | *
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17 | * @name Idea
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18 | * @function
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19 | * @param {String} path The path to the JSON file where your ideas will be stored (default: `~/.ideas.json`).
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20 | * @param {Function} callback The callback function.
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21 | * @return {Idea} The `Idea` instance.
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22 | */
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23 | class Idea {
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24 | constructor (path, callback) {
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25 | if (typeof path === "function") {
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26 | callback = path;
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27 | path = null;
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28 | }
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29 |
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30 | // Defaults
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31 | this.path = path = path || DEFAULT_PATH;
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32 | callback = callback || (err => { if (err) throw err });
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33 |
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34 | // Init
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35 | if (!isThere(this.path)) {
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36 | this.ideas = [];
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37 | this.save(callback);
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38 | } else {
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39 | this.list((err, ideas) => {
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40 | if (err) { return callback(err); }
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41 | this.ideas = ideas;
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42 | callback(null, ideas, this);
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43 | });
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44 | }
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45 | }
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46 | /**
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47 | * list
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48 | * Lists all ideas.
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49 | *
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50 | * @name list
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51 | * @function
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52 | * @param {Function} callback The callback function.
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53 | * @return {Idea} The `Idea` instance.
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54 | */
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55 | list (callback) {
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56 | rJson(this.path, (err, content) => {
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57 | if (err) { return callback(err); }
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58 | callback(err, content);
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59 | });
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60 | return this;
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61 | }
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62 | /**
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63 | * filter
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64 | * Filters ideas.
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65 | *
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66 | * @name filter
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67 | * @function
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68 | * @param {Object} filters An MongoDB like query object.
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69 | * @param {Function} callback The callback function.
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70 | * @return {Idea} The `Idea` instance.
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71 | */
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72 | filter (filters, callback) {
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73 | callback(null, sift(filters, this.ideas));
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74 | return this;
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75 | }
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76 | /**
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77 | * create
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78 | *
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79 | * @name create
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80 | * @function
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81 | * @param {String} idea The idea you have.
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82 | * @param {Function} callback The callback function.
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83 | * @return {Idea} The `Idea` instance.
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84 | */
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85 | create (idea, callback) {
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86 | if (!idea) {
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87 | return callback(new Error("Idea cannot be empty."));
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88 | }
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89 | this.ideas.push({
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90 | id: this.ideas.length
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91 | , idea: idea
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92 | , date: new Date()
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93 | , state: "OPEN"
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94 | });
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95 | return this;
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96 | }
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97 | /**
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98 | * solve
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99 | * Solves an idea.
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100 | *
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101 | * @name solve
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102 | * @function
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103 | * @param {String} id The idea id.
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104 | * @param {Function} callback The callback function.
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105 | * @return {Idea} The `Idea` instance.
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106 | */
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107 | solve (id, callback) {
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108 | if (!this.ideas[id - 1]) {
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109 | return callback(new Error("Cannot find any idea with this id."));
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110 | }
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111 | this.ideas[id - 1].state = "SOLVED";
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112 | return this;
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113 | }
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114 | /**
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115 | * save
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116 | * Saves the ideas in the file.
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117 | *
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118 | * @name save
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119 | * @function
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120 | * @param {Function} callback The callback function.
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121 | * @return {Idea} The `Idea` instance.
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122 | */
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123 | save (callback) {
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124 | wJson(this.path, this.ideas, callback);
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125 | return this;
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126 | }
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127 | }
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128 |
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129 | module.exports = Idea;
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