1 | import { MERGE, ACCUM, INCRE, COUNT } from '@analys/enum-pivot-mode';
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2 | import { Accumulators } from '@analys/util-pivot';
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3 |
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4 | const {
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5 | merge: merge$1,
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6 | accum: accum$1
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7 | } = Accumulators;
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8 | const findEntry = function (key) {
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9 | return this.find(([k]) => key === k);
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10 | };
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11 | const EntriesRecorder = mode => {
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12 | if (mode === MERGE) return function (x, v) {
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13 | const en = findEntry.call(this, x);
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14 |
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15 | if (en) {
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16 | merge$1(en[1], v);
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17 | } else {
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18 | this.push([x, v.slice()]);
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19 | }
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20 | };
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21 | if (mode === ACCUM) return function (x, v) {
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22 | const en = findEntry.call(this, x);
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23 |
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24 | if (en) {
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25 | accum$1(en[1], v);
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26 | } else {
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27 | this.push([x, [v]]);
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28 | }
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29 | };
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30 | if (mode === INCRE) return function (x, v) {
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31 | const en = findEntry.call(this, x);
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32 |
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33 | if (en) {
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34 | en[1] += v;
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35 | } else {
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36 | this.push([x, v]);
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37 | }
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38 | };
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39 | if (mode === COUNT) return function (x) {
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40 | const en = findEntry.call(this, x);
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41 |
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42 | if (en) {
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43 | en[1]++;
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44 | } else {
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45 | this.push([x, 1]);
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46 | }
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47 | };
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48 | return () => {};
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49 | };
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50 |
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51 | const {
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52 | merge,
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53 | accum
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54 | } = Accumulators;
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55 | const ObjectRecorder = mode => {
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56 | if (mode === MERGE) return function (x, v) {
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57 | if (x in this) {
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58 | merge(this[x], v);
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59 | } else {
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60 | this[x] = v.slice();
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61 | }
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62 | };
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63 | if (mode === ACCUM) return function (x, v) {
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64 | if (x in this) {
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65 | accum(this[x], v);
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66 | } else {
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67 | this[x] = [v];
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68 | }
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69 | };
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70 | if (mode === INCRE) return function (x, v) {
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71 | if (x in this) {
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72 | this[x] += v;
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73 | } else {
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74 | this[x] = v;
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75 | }
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76 | };
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77 | if (mode === COUNT) return function (x) {
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78 | if (x in this) {
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79 | this[x]++;
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80 | } else {
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81 | this[x] = 1;
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82 | }
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83 | };
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84 | return () => {};
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85 | };
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86 |
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87 | const tableChips = function ({
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88 | key,
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89 | field,
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90 | mode = ACCUM,
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91 | objectify = true
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92 | } = {}) {
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93 | const {
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94 | head,
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95 | rows
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96 | } = this,
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97 | l = rows.length;
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98 | const ki = head.indexOf(key),
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99 | vi = head.indexOf(field);
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100 | let chips, row;
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101 | const note = objectify ? ObjectRecorder(mode).bind(chips = {}) : EntriesRecorder(mode).bind(chips = []);
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102 |
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103 | for (let i = 0; i < l && (row = rows[i]); i++) note(row[ki], row[vi]);
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104 |
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105 | return chips;
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106 | };
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107 |
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108 | export { tableChips };
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