Files
investbrain/app/Models/Split.php
T
2025-01-28 17:33:54 -06:00

146 lines
4.2 KiB
PHP

<?php
declare(strict_types=1);
namespace App\Models;
use App\Interfaces\MarketData\MarketDataInterface;
use Illuminate\Database\Eloquent\Concerns\HasUuids;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Str;
class Split extends Model
{
use HasFactory;
use HasUuids;
protected $fillable = [
'symbol',
'date',
'split_amount',
];
protected $hidden = [];
protected $casts = [
'date' => 'datetime',
'last_date' => 'datetime',
];
public function holdings()
{
return $this->hasMany(Holding::class, 'symbol', 'symbol');
}
public function transactions()
{
return $this->hasMany(Transaction::class, 'symbol', 'symbol');
}
/**
* Grab new split data
*
* @param \DateTimeInterface|null $start_date
* @return void
*/
public static function refreshSplitData(string $symbol)
{
// dates for split data
$splits_meta = self::where(['symbol' => $symbol])
->selectRaw('COUNT(symbol) as total_splits')
->selectRaw('MAX(date) as last_date')
->get()
->first();
// assume need to populate all split data because it didnt exist before
$start_date = new \DateTime('@0');
$end_date = now();
// nope, need to populate newer split data
if ($splits_meta->total_splits) {
$start_date = $splits_meta->last_date->addHours(48);
$end_date = now();
}
// get some data
if ($split_data = collect() && $start_date && $end_date) {
$split_data = app(MarketDataInterface::class)->splits($symbol, $start_date, $end_date);
}
if ($split_data->isNotEmpty()) {
// insert records
(new self)->insert($split_data->map(function ($split) {
return [...$split, ...['id' => Str::uuid()->toString()]];
})->toArray());
}
// sync to transactions
self::syncToTransactions($symbol);
}
/**
* Syncs all transactions of symbol with split data
*
* @param string $symbol
* @return void
*/
public static function syncToTransactions($symbol)
{
// get splits joined with matching holdings
$splits = self::select([
'splits.date',
'splits.symbol',
'splits.split_amount',
'holdings.portfolio_id',
])
->where([
'splits.symbol' => $symbol,
])
->whereDate('splits.date', '>', DB::raw('IFNULL(holdings.splits_synced_at, "0000-00-00")'))
->where('holdings.quantity', '>', 0)
->join('holdings', 'splits.symbol', 'holdings.symbol')
->orderBy('splits.date', 'ASC')
->get();
foreach ($splits as $split) {
// get qty owned when split was issued
$qty_owned = Transaction::where([
'symbol' => $split->symbol,
'portfolio_id' => $split->portfolio_id,
])
->whereDate('transactions.date', '<', $split->date->format('Y-m-d'))
->selectRaw('SUM(CASE WHEN transaction_type = "BUY" THEN quantity ELSE 0 END) -
SUM(CASE WHEN transaction_type = "SELL" THEN quantity ELSE 0 END) AS qty_owned')
->value('qty_owned');
if ($qty_owned > 0) {
Transaction::create([
'symbol' => $split->symbol,
'portfolio_id' => $split->portfolio_id,
'transaction_type' => 'BUY',
'date' => $split->date,
'quantity' => ($qty_owned * $split->split_amount) - $qty_owned,
'cost_basis' => 0,
'split' => true,
'created_at' => now(),
'updated_at' => now(),
]);
Holding::where([
'symbol' => $split->symbol,
'portfolio_id' => $split->portfolio_id,
])->update([
'splits_synced_at' => now(),
]);
}
}
}
}