<?php

namespace Tests\Traits;

use App\Models\BankReconciliation;
use App\Models\Budget;
use App\Models\BudgetItem;
use App\Models\CashierLedgerEntry;
use App\Models\ChartOfAccount;
use App\Models\FinanceDocument;
use App\Models\PaymentOrder;
use App\Models\User;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Storage;

trait CreatesFinanceData
{
    /**
     * Create a finance document at a specific approval stage
     */
    protected function createFinanceDocument(array $attributes = []): FinanceDocument
    {
        return FinanceDocument::factory()->create($attributes);
    }

    /**
     * Create a small amount finance document (< 5000)
     */
    protected function createSmallAmountDocument(array $attributes = []): FinanceDocument
    {
        $doc = $this->createFinanceDocument(array_merge([
            'amount' => 3000,
        ], $attributes));

        // Verify it's small amount
        assert($doc->determineAmountTier() === FinanceDocument::AMOUNT_TIER_SMALL);
        return $doc;
    }

    /**
     * Create a medium amount finance document (5000 - 50000)
     */
    protected function createMediumAmountDocument(array $attributes = []): FinanceDocument
    {
        $doc = $this->createFinanceDocument(array_merge([
            'amount' => 25000,
        ], $attributes));

        // Verify it's medium amount
        assert($doc->determineAmountTier() === FinanceDocument::AMOUNT_TIER_MEDIUM);
        return $doc;
    }

    /**
     * Create a large amount finance document (> 50000)
     */
    protected function createLargeAmountDocument(array $attributes = []): FinanceDocument
    {
        $doc = $this->createFinanceDocument(array_merge([
            'amount' => 75000,
        ], $attributes));

        // Verify it's large amount
        assert($doc->determineAmountTier() === FinanceDocument::AMOUNT_TIER_LARGE);
        return $doc;
    }

    /**
     * Create a finance document at specific approval stage
     */
    protected function createDocumentAtStage(string $stage, array $attributes = []): FinanceDocument
    {
        $statusMap = [
            'pending' => FinanceDocument::STATUS_PENDING,
            'cashier_approved' => FinanceDocument::STATUS_APPROVED_CASHIER,
            'accountant_approved' => FinanceDocument::STATUS_APPROVED_ACCOUNTANT,
            'chair_approved' => FinanceDocument::STATUS_APPROVED_CHAIR,
            'rejected' => FinanceDocument::STATUS_REJECTED,
        ];

        return $this->createFinanceDocument(array_merge([
            'status' => $statusMap[$stage] ?? FinanceDocument::STATUS_PENDING,
        ], $attributes));
    }

    /**
     * Create a payment order
     */
    protected function createPaymentOrder(array $attributes = []): PaymentOrder
    {
        if (!isset($attributes['finance_document_id'])) {
            $document = $this->createDocumentAtStage('chair_approved');
            $attributes['finance_document_id'] = $document->id;
        }

        return PaymentOrder::factory()->create($attributes);
    }

    /**
     * Create a payment order at specific stage
     */
    protected function createPaymentOrderAtStage(string $stage, array $attributes = []): PaymentOrder
    {
        $statusMap = [
            'draft' => PaymentOrder::STATUS_DRAFT,
            'pending_verification' => PaymentOrder::STATUS_PENDING_VERIFICATION,
            'verified' => PaymentOrder::STATUS_VERIFIED,
            'executed' => PaymentOrder::STATUS_EXECUTED,
            'cancelled' => PaymentOrder::STATUS_CANCELLED,
        ];

        return $this->createPaymentOrder(array_merge([
            'status' => $statusMap[$stage] ?? PaymentOrder::STATUS_DRAFT,
        ], $attributes));
    }

    /**
     * Create a cashier ledger entry
     */
    protected function createCashierLedgerEntry(array $attributes = []): CashierLedgerEntry
    {
        $cashier = $attributes['recorded_by_cashier_id'] ?? User::factory()->create()->id;

        return CashierLedgerEntry::create(array_merge([
            'entry_type' => 'receipt',
            'entry_date' => now(),
            'amount' => 10000,
            'payment_method' => 'bank_transfer',
            'bank_account' => 'Test Bank Account',
            'balance_before' => 0,
            'balance_after' => 10000,
            'recorded_by_cashier_id' => $cashier,
            'recorded_at' => now(),
        ], $attributes));
    }

    /**
     * Create a receipt entry (income)
     */
    protected function createReceiptEntry(int $amount, string $bankAccount = 'Test Account', array $attributes = []): CashierLedgerEntry
    {
        $latestBalance = CashierLedgerEntry::getLatestBalance($bankAccount);

        return $this->createCashierLedgerEntry(array_merge([
            'entry_type' => 'receipt',
            'amount' => $amount,
            'bank_account' => $bankAccount,
            'balance_before' => $latestBalance,
            'balance_after' => $latestBalance + $amount,
        ], $attributes));
    }

    /**
     * Create a payment entry (expense)
     */
    protected function createPaymentEntry(int $amount, string $bankAccount = 'Test Account', array $attributes = []): CashierLedgerEntry
    {
        $latestBalance = CashierLedgerEntry::getLatestBalance($bankAccount);

        return $this->createCashierLedgerEntry(array_merge([
            'entry_type' => 'payment',
            'amount' => $amount,
            'bank_account' => $bankAccount,
            'balance_before' => $latestBalance,
            'balance_after' => $latestBalance - $amount,
        ], $attributes));
    }

    /**
     * Create a bank reconciliation
     */
    protected function createBankReconciliation(array $attributes = []): BankReconciliation
    {
        $cashier = $attributes['prepared_by_cashier_id'] ?? User::factory()->create()->id;

        return BankReconciliation::create(array_merge([
            'reconciliation_month' => now()->startOfMonth(),
            'bank_statement_date' => now(),
            'bank_statement_balance' => 100000,
            'system_book_balance' => 100000,
            'outstanding_checks' => [],
            'deposits_in_transit' => [],
            'bank_charges' => [],
            'prepared_by_cashier_id' => $cashier,
            'prepared_at' => now(),
            'reconciliation_status' => 'pending',
            'discrepancy_amount' => 0,
        ], $attributes));
    }

    /**
     * Create a bank reconciliation with discrepancy
     */
    protected function createReconciliationWithDiscrepancy(int $discrepancy, array $attributes = []): BankReconciliation
    {
        return $this->createBankReconciliation(array_merge([
            'bank_statement_balance' => 100000,
            'system_book_balance' => 100000 - $discrepancy,
            'discrepancy_amount' => $discrepancy,
            'reconciliation_status' => 'discrepancy',
        ], $attributes));
    }

    /**
     * Create a completed bank reconciliation
     */
    protected function createCompletedReconciliation(array $attributes = []): BankReconciliation
    {
        $cashier = User::factory()->create();
        $accountant = User::factory()->create();
        $manager = User::factory()->create();

        return $this->createBankReconciliation(array_merge([
            'prepared_by_cashier_id' => $cashier->id,
            'prepared_at' => now()->subDays(3),
            'reviewed_by_accountant_id' => $accountant->id,
            'reviewed_at' => now()->subDays(2),
            'approved_by_manager_id' => $manager->id,
            'approved_at' => now()->subDay(),
            'reconciliation_status' => 'completed',
        ], $attributes));
    }

    /**
     * Create a budget
     */
    protected function createBudget(array $attributes = []): Budget
    {
        return Budget::factory()->create($attributes);
    }

    /**
     * Create a budget with items
     */
    protected function createBudgetWithItems(int $itemCount = 3, array $budgetAttributes = []): Budget
    {
        $budget = $this->createBudget($budgetAttributes);

        for ($i = 0; $i < $itemCount; $i++) {
            $account = ChartOfAccount::factory()->create();
            BudgetItem::factory()->create([
                'budget_id' => $budget->id,
                'chart_of_account_id' => $account->id,
                'budgeted_amount' => rand(10000, 50000),
            ]);
        }

        return $budget->fresh('items');
    }

    /**
     * Create a fake attachment file
     */
    protected function createFakeAttachment(string $name = 'document.pdf'): UploadedFile
    {
        return UploadedFile::fake()->create($name, 100, 'application/pdf');
    }

    /**
     * Get valid finance document data
     */
    protected function getValidFinanceDocumentData(array $overrides = []): array
    {
        return array_merge([
            'title' => 'Test Finance Document',
            'description' => 'Test description',
            'amount' => 10000,
            'request_type' => FinanceDocument::REQUEST_TYPE_EXPENSE_REIMBURSEMENT,
            'payee_name' => 'Test Payee',
            'notes' => 'Test notes',
        ], $overrides);
    }
}