p4lv /
Excel-GoalSeek
| Conditions | 24 |
| Paths | 34 |
| Total Lines | 104 |
| Code Lines | 45 |
| Lines | 0 |
| Ratio | 0 % |
| Tests | 44 |
| CRAP Score | 24.0474 |
| Changes | 4 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
Methods with many parameters are not only hard to understand, but their parameters also often become inconsistent when you need more, or different data.
There are several approaches to avoid long parameter lists:
| 1 | <?php |
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| 28 | public function calculate( |
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| 29 | 9 | callable $function, |
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| 30 | $goal, |
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| 31 | 10 | $decimal_places, |
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| 32 | $incremental_modifier = 1, |
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| 33 | $max_loops_round = 0, |
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| 34 | $max_loops_dec = 0, |
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| 35 | $lock_min = ['num' => null, 'goal' => null], |
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| 36 | $lock_max = ['num' => null, 'goal' => null], |
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| 37 | $slope = null, |
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| 38 | $randomized = false, |
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| 39 | $start_from = 0.1 |
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| 40 | ) |
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| 41 | { |
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| 42 | //If goal found has more than this difference, return null as it is not found |
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| 43 | $maximum_acceptable_difference = 0.1; |
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| 44 | $max_loops_round++; |
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| 45 | 10 | ||
| 46 | 1 | $this->checkLimitRestriction($max_loops_round); |
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| 47 | |||
| 48 | $this->debug(sprintf("Iteration %d; min value = %s; max value = %s; slope %s", $max_loops_round, $lock_min['num'], $lock_max['num'], $slope)); |
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| 49 | 9 | ||
| 50 | //If I have the goal limited to a unit, I seek decimals |
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| 51 | 9 | if ($lock_min['num'] !== null && $lock_max['num'] !== null && abs(abs($lock_max['num']) - abs($lock_min['num'])) <= 1) { |
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| 52 | |||
| 53 | 9 | //No decimal , return result |
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| 54 | 1 | if ($lock_min['num'] == $lock_max['num']) { |
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| 55 | return $lock_min['num']; |
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| 56 | 1 | } |
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| 57 | |||
| 58 | //Seek decimals |
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| 59 | 9 | foreach (range(1, $decimal_places, 1) as $decimal) { |
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| 60 | $decimal_step = 1 / (10 ** $decimal); |
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| 61 | |||
| 62 | 9 | $difference = abs(round(abs($lock_max['num']), $decimal) - round(abs($lock_min['num']), $decimal)); |
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| 63 | |||
| 64 | while ($difference - ($decimal_step / 10) > $decimal_step && $max_loops_dec < (2000 * $decimal_places)) { |
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| 65 | 8 | $max_loops_dec++; |
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| 66 | 2 | ||
| 67 | $aux_obj_num = round(($lock_min['num'] + $lock_max['num']) / 2, $decimal); |
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| 68 | $aux_obj = $function($aux_obj_num); |
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| 69 | |||
| 70 | 6 | $this->debug(sprintf("Decimal iteration %d; min value = %s; max value = %s; value %s", $max_loops_dec, $lock_min['num'], $lock_max['num'], $aux_obj)); |
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| 71 | 6 | ||
| 72 | //Like when I look without decimals |
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| 73 | 6 | [$lock_min, $lock_max] = $this->lookWithoutDecimals($aux_obj, $goal, $aux_obj_num, $lock_min, $lock_max, $slope); |
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| 74 | //End Like when I look without decimals |
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| 75 | 6 | $difference = abs(round(abs($lock_max['num']), $decimal) - round(abs($lock_min['num']), $decimal)); |
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| 76 | 6 | }//End while |
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| 77 | }//End foreach |
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| 78 | 6 | ||
| 79 | 6 | ||
| 80 | if ($max_loops_dec > 2000 * $decimal_places) { |
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| 81 | 6 | throw new GoalNeverReached('Goal never reached [2000]'); |
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| 82 | 6 | } |
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| 83 | |||
| 84 | if (!is_nan($lock_min['goal']) && abs(abs($lock_min['goal']) - abs($goal)) < $maximum_acceptable_difference) { |
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| 85 | return round($lock_min['num'], $decimal_places - 1); |
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| 86 | 6 | } |
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| 87 | |||
| 88 | 6 | throw new GoalReachedNotEnough('Goal reached not enough'); |
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| 89 | } |
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| 90 | |||
| 91 | //First iteration, try with zero |
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| 92 | $aux_obj_num = $this->getAuxObjNum($lock_min['num'], $lock_max['num'], $start_from, $incremental_modifier); |
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| 93 | 6 | ||
| 94 | $aux_obj = $function($aux_obj_num); |
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| 95 | |||
| 96 | $this->debug(sprintf("Testing (with initial value) %s%d with value %s", $aux_obj_num != $start_from ? '' : '(with initial value)', $aux_obj_num, $aux_obj)); |
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| 97 | 6 | ||
| 98 | 6 | if ($slope === null) { |
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| 99 | $aux_slope = $function($aux_obj_num + 0.1); |
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| 100 | |||
| 101 | if (is_nan($aux_slope) || is_nan($aux_obj)) { |
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| 102 | $slope = null; //If slope is null |
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| 103 | } elseif ($aux_slope - $aux_obj > 0) { |
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| 104 | $slope = 1; |
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| 105 | 9 | } else { |
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| 106 | 9 | $slope = -1; |
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| 107 | } |
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| 108 | 9 | } |
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| 109 | 8 | ||
| 110 | 8 | //Test if formule can give me non valid values, i.e.: sqrt of negative value |
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| 111 | if (!is_nan($aux_obj)) { |
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| 112 | 8 | //Is goal without decimals? |
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| 113 | [$lock_min, $lock_max] = $this->lookWithoutDecimals($aux_obj, $goal, $aux_obj_num, $lock_min, $lock_max, $slope); |
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| 114 | } else { |
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| 115 | 9 | if (($lock_min['num'] === null && $lock_max['num'] === null) || $randomized) { |
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| 116 | 1 | $nuevo_start_from = random_int(-500, 500); |
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| 117 | 1 | ||
| 118 | return $this->calculate($function, $goal, $decimal_places, $incremental_modifier + 1, $max_loops_round, $max_loops_dec, $lock_min, $lock_max, $slope, true, $nuevo_start_from); |
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| 119 | 1 | } //First iteration is null |
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| 120 | |||
| 121 | if ($lock_min['num'] !== null && abs(abs($aux_obj_num) - abs($lock_min['num'])) < 1) { |
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| 122 | 8 | $lock_max['num'] = $aux_obj_num; |
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| 123 | 8 | } |
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| 124 | if ($lock_max['num'] !== null && abs(abs($aux_obj_num) - abs($lock_max['num'])) < 1) { |
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| 125 | $lock_min['num'] = $aux_obj_num; |
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| 126 | 9 | } |
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| 127 | 9 | ||
| 128 | 9 | return $this->calculate($function, $goal, $decimal_places, $incremental_modifier + 1, $max_loops_round, $max_loops_dec, $lock_min, $lock_max, $slope, $randomized, $start_from); |
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| 129 | } |
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| 130 | 9 | ||
| 131 | 9 | return $this->calculate($function, $goal, $decimal_places, $incremental_modifier, $max_loops_round, $max_loops_dec, $lock_min, $lock_max, $slope, $randomized, $start_from); |
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| 132 | } |
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| 220 |
