139 lines
4.5 KiB
PHP
139 lines
4.5 KiB
PHP
<?php
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namespace App\Library\Structures;
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use DB;
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use Carbon\Carbon;
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use App\User;
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use App\Models\User\UserRole;
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use App\Models\User\UserPermission;
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use App\Models\Corporation\CorpJournal;
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use App\Models\Corporation\CorpStructure;
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class StructureTaxHelper {
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private $corpId;
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private $refType;
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private $start;
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private $end;
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public function GetTaxes($corpId, $refType, $start, $end) {
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$taxOwed = 0.00;
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//Get the number of structures of a certain type
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$count = $this->GetStructureCount($corpId, $refType);
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//Calculate the fuel cost for one type of structure
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$fuelCost = $this->CalculateFuelBlockCost($refType);
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//Calculate the average tax for a given structure type
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$tax = $this->GetStructureTax($corpId, $refType);
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//Calculate the tax ratio to later be divided against the tax to find the
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//actual tax owed to the alliance. Revenue will be a separate function
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$ratio = $this->CalculateTaxRatio($tax, $refType, $start, $end);
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if($ratio == 0 || $ratio == null) {
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$ratio = 1.0;
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}
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//Get the total taxes produced by the structure(s) over a given set of dates
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$revenue = $this->GetRevenue($corpId, $refType, $start, $end);
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$revenue = $revenue - ($fuelCost * $count);
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//Calculate the tax owed which is revenue divided by ratio previously calculated
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$taxOwed = $revenue / $ratio;
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//Check for negative number, and if negative, zero it out.
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if($taxOwed < 0.00){
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$taxOwed = 0.00;
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}
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//Return the amount
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return $taxOwed;
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}
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public function GetRevenue($corpId, $refType, $start, $end) {
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$revenue = 0.00;
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if($refType == 'Market') {
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$revenue = CorpJournal::where(['ref_type' => 'brokers_fee', 'corporation_id' => $corpId])
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->whereBetween('date', [$start, $end])
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->sum('amount');
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} else if($refType == 'Refinery'){
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$revenue = CorpJournal::where(['ref_type' => 'reprocessing_tax', 'corporation_id' => $corpId])
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->whereBetween('date', [$start, $end])
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->sum('amount');
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} else {
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$revenue = 0.00;
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}
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return $revenue;
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}
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private function CalculateTaxRatio($overallTax, $type) {
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//The alliance will get a ratio of the tax.
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//We need to calculate the correct ratio based on structure tax,
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//Then figure out what is owed to the alliance
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if($type == 'Market') {
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$ratioType = 2.0;
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} else if($type == 'Refinery') {
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$ratioType = 1.0;
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} else {
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$ratioType = 1.0;
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}
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//Calculate the ratio since we have the base percentage the alliance takes
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$taxRatio = $overallTax / $ratioType;
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//Return what is owed to the alliance
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return $taxRatio;
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}
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private function CalculateFuelBlockCost($type) {
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//Calculate how many fuel blocks are used in a month by a structure type
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if($type === 'Market') {
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$fuelBlocks = 24*30*32;
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} else if ($type === 'Refinery') {
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$fuelBlocks = 24*30*8;
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} else {
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$fuelBlocks = 0;
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}
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//Multiply the amount of fuel blocks used by the structure by 20,000.
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$cost = $fuelBlocks * 20000.00;
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//Return to the calling function
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return $cost;
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}
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private function GetTimeFrame() {
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$start = Carbon::now()->startOfMonth();
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$end = Carbon::now()->endOfMonth();
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$end->hour = 23;
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$end->minute = 59;
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$end->second = 59;
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$startLast = new Carbon('first day of last month');
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$endLast = new Carbon('last day of last month');
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$endLast->hour = 23;
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$endLast->minute = 59;
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$endLast->second = 59;
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$dates = [
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'ThisMonthStart' => $start,
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'ThisMonthEnd' => $end,
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'LastMonthStart' => $startLast,
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'LastMonthEnd' => $endLast,
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];
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return $dates;
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}
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private function GetStructureTax($corpId, $structureType) {
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$tax = CorpStructure::where(['corporation_id' => $corpId, 'structure_type' => $structureType])->avg('tax');
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return (float) $tax;
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}
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private function GetStructureCount($corpId, $structureType) {
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$count = CorpStructure::where(['corporation_id' => $corpId, 'structure_type' => $structureType])->count();
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return (float) $count;
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}
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}
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?>
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