<?php

declare(strict_types=1);

namespace App\Models;

use App\Traits\HasCompositePrimaryKey;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;

class DailyChange extends Model
{
    use HasCompositePrimaryKey, HasFactory;

    public $timestamps = false;

    protected $primaryKey = ['date', 'portfolio_id'];

    protected $table = 'daily_change';

    protected $fillable = [
        'portfolio_id',
        'date',
        'total_market_value',
        'notes',
    ];

    protected $hidden = [];

    protected $casts = [
        'date' => 'datetime',
        'total_market_value' => 'float',
        'total_cost_basis' => 'float',
        'total_market_gain' => 'float',
        'realized_gain_dollars' => 'float',
        'total_dividends_earned' => 'float',
    ];

    public function scopePortfolio($query, $portfolio)
    {
        return $query->where('daily_change.portfolio_id', $portfolio);
    }

    public function scopeMyDailyChanges()
    {
        return $this->whereHas('portfolio', function ($query) {
            $query->whereHas('users', function ($query) {
                return $query->where('id', auth()->id());
            });
        });
    }

    public function scopeWithoutWishlists($query)
    {
        return $query->whereHas('portfolio', function ($query) {
            $query->where('portfolios.wishlist', 0);
        });
    }

    public function scopeWithDailyPerformance($query)
    {
        $currency = auth()->user()?->getCurrency() ?? config('investbrain.base_currency');

        $dividendSub = DB::table('holdings')
            ->join('dividends', 'dividends.symbol', '=', 'holdings.symbol')
            ->leftJoin('currency_rates as cr', function ($join) use ($currency) {
                $join->on('cr.date', '=', 'dividends.date')
                    ->where('cr.currency', '=', $currency);
            })
            ->join('transactions as tx', function ($join) {
                $join->on('tx.symbol', '=', 'holdings.symbol')
                    ->on('tx.portfolio_id', '=', 'holdings.portfolio_id')
                    ->whereColumn('tx.date', '<=', 'dividends.date');
            })
            ->select(['holdings.portfolio_id', 'dividends.date'])
            ->selectRaw("
                ((CASE WHEN tx.transaction_type = 'BUY'
                    THEN tx.quantity ELSE 0 END)
                - (CASE WHEN tx.transaction_type = 'SELL'
                    THEN tx.quantity ELSE 0 END))
                * SUM(
                    dividends.dividend_amount_base
                    * COALESCE(cr.rate, 1)
                )
                AS total_dividends_earned")
            ->groupBy(['holdings.portfolio_id', 'dividends.date', 'tx.transaction_type', 'tx.quantity']);

        $transactionTotals = DB::table('transactions')
            ->select(['transactions.portfolio_id', 'transactions.date'])
            ->selectRaw("
                SUM(
                    (CASE WHEN transactions.transaction_type = 'BUY' THEN 1 ELSE -1 END) 
                    * transactions.quantity 
                    * transactions.cost_basis_base 
                    * COALESCE(cr.rate, 1)
                ) AS daily_cost_basis
            ")
            ->selectRaw("
                SUM(
                    (CASE 
                        WHEN transactions.transaction_type = 'SELL' 
                        THEN ( transactions.sale_price_base - transactions.cost_basis_base ) 
                             * transactions.quantity
                             * COALESCE(cr.rate, 1)
                    END)
                ) AS daily_realized_gains
            ")
            ->leftJoin('currency_rates as cr', function ($join) use ($currency) {
                $join
                    ->on(DB::raw('DATE(cr.date)'), '=', DB::raw('DATE(transactions.date)'))
                    ->where('cr.currency', $currency);
            })
            ->groupBy('transactions.portfolio_id', 'transactions.date');

        $cumulativeCostBasis = DB::table(DB::raw("({$transactionTotals->toSql()}) AS transaction_totals"))
            ->mergeBindings($transactionTotals)
            ->select(['portfolio_id', 'date'])
            ->selectRaw('SUM(daily_cost_basis) AS cumulative_cost_basis')
            ->selectRaw('SUM(daily_realized_gains) AS cumulative_realized_gains')
            ->groupBy('portfolio_id', 'date');

        return $query
            ->select(['daily_change.portfolio_id', 'daily_change.date'])
            ->selectRaw('daily_change.total_market_value * COALESCE(cr.rate, 1) AS total_market_value')
            ->selectRaw('SUM(COALESCE(ccb.cumulative_cost_basis, 0)) AS total_cost_basis')
            ->selectRaw('daily_change.total_market_value * COALESCE(cr.rate, 1) 
                - SUM(COALESCE(ccb.cumulative_cost_basis, 0)) 
                AS total_market_gain')
            ->selectRaw('SUM(COALESCE(ccb.cumulative_realized_gains, 0)) AS realized_gain_dollars')
            ->selectSub(function ($query) use ($dividendSub) {
                $query->fromSub($dividendSub, 'd')
                    ->selectRaw('SUM(d.total_dividends_earned)')
                    ->whereColumn('d.date', '<=', 'daily_change.date')
                    ->whereColumn('d.portfolio_id', '=', 'daily_change.portfolio_id');
            }, 'total_dividends_earned')
            ->leftJoin('currency_rates as cr', function ($join) use ($currency) {
                $join
                    ->on(DB::raw('DATE(cr.date)'), '=', DB::raw('DATE(daily_change.date)'))
                    ->where('cr.currency', $currency);
            })
            ->leftJoinSub($cumulativeCostBasis, 'ccb', function ($join) {
                $join
                    ->on('ccb.portfolio_id', '=', 'daily_change.portfolio_id')
                    ->whereRaw('ccb.date <= daily_change.date');
            })
            ->groupBy(['daily_change.date', 'daily_change.portfolio_id', 'cr.rate'])
            ->orderBy('daily_change.date');
    }

    public function scopeWithMultipleDailyPerformance($query)
    {
        return DB::table(DB::raw("({$query->toSql()}) AS daily_query"))
            ->addBinding($query->getQuery()->getBindings(), 'join')
            ->select('date')
            ->selectRaw('SUM(total_market_value) AS total_market_value')
            ->selectRaw('SUM(total_cost_basis) AS total_cost_basis')
            ->selectRaw('SUM(total_market_gain) AS total_market_gain')
            ->selectRaw('SUM(realized_gain_dollars) AS realized_gain_dollars')
            ->selectRaw('SUM(total_dividends_earned) AS total_dividends_earned')
            ->groupBy('date');
    }

    public function portfolio()
    {
        return $this->belongsTo(Portfolio::class);
    }
}