<?php

final class InvoiceDiscountTest extends LegacyTestCase
{
    private function rows(array $rows, float $selfDiscount = 0, ?float $original = null): FixtureRows
    {
        $GLOBALS['db']->expect('getOne', 'SELECT jbprc_price FROM jobprice WHERE jb_id = 123 AND mt_sort = 13', $selfDiscount);
        $result = new FixtureRows($rows);
        $GLOBALS['db']->expect('query', "SELECT trs_discount, trs_price, trs_srv_name FROM tourservice WHERE jb_id = '123'", $result);
        if ($original !== null) {
            $GLOBALS['db']->expect('getOne', 'SELECT jbprc_remark FROM jobprice WHERE jb_id = 123 AND mt_sort = 13', $original);
        }
        return $result;
    }

    private function row(string $name, float $price, float $discount = 0): array
    {
        return ['trs_srv_name' => $name, 'trs_price' => $price, 'trs_discount' => $discount];
    }

    private function item(int $index): array
    {
        [$table, $row] = FixtureState::$writes[$index];
        self::assertSame('phoenix_log.b2b_objects', $table);
        $fields = [];
        for ($i = 0; $i < count($row); $i += 2) {
            $fields[$row[$i]] = $row[$i + 1];
        }
        self::assertSame(300, $fields['bo_type']);
        self::assertSame(123, $fields['bo_ext_id0']);
        self::assertSame(7, $fields['bo_ext_id1']);
        return json_decode($fields['bo_obj_data'], true, 512, JSON_THROW_ON_ERROR);
    }

    public function testNoDiscountProducesNoTextOrBiItems(): void
    {
        $rows = $this->rows([$this->row('Fixpreis', 100)]);
        self::assertSame('', checkDiscountStr(123, 0, 100, 0));
        self::assertSame([], FixtureState::$writes);
        self::assertTrue($rows->freed);
    }

    public function testDiscountTextAndBiItemUseSameAmounts(): void
    {
        FixtureState::$parameters[7]['INV_PRINT_DISCOUNT'] = '1';
        $this->rows([$this->row('Fixpreis', 90, 10)]);
        self::assertSame("\nRabatt 10,00% auf 90,00 EUR = -9,00 EUR", checkDiscountStr(123, 0, 90, 0));
        self::assertCount(1, FixtureState::$writes);
        self::assertSame(['c', '0.1', 's', 'Rabatt', 'p', '90', 't', '-9'], $this->item(0));
    }

    public function testHiddenDiscountDoesNotCreateBiItem(): void
    {
        FixtureState::$parameters[7]['INV_PRINT_DISCOUNT'] = '0';
        $this->rows([$this->row('Fixpreis', 90, 10)]);
        self::assertSame('', checkDiscountStr(123, 0, 90, 0));
        self::assertSame([], FixtureState::$writes);
    }

    public function testFuelMarkupExcludesServicePrice(): void
    {
        FixtureState::$parameters[7]['MASK_MARKUP_MODE'] = '1';
        $this->rows([$this->row('Fixpreis', 110), $this->row('Servicepreis', 12)]);
        self::assertSame("\nTreibstoffzuschlag 10,00% auf 100,00 EUR = 10,00 EUR", checkDiscountStr(123, 10, 110, 12));
        self::assertCount(1, FixtureState::$writes);
        self::assertSame(['c', '0.1', 's', 'Treibstoffzuschlag', 'p', '100', 't', '10'], $this->item(0));
    }

    public function testSelfEntryDiscountUsesStoredOriginalAmount(): void
    {
        $this->rows([$this->row('Fixpreis', 90), $this->row('Servicepreis', 12)], 10, 100);
        self::assertSame("\nSelbsterfasserrabatt 10,00% auf 100,00 EUR = -10,00 EUR", checkDiscountStr(123, 0, 90, 12));
        self::assertCount(1, FixtureState::$writes);
        self::assertSame(['c', '0.1', 's', 'Selbsterfasserrabatt', 'p', '100', 't', '-10'], $this->item(0));
    }

    public function testMarkupThenSelfEntryDiscountKeepTextAndBiOrder(): void
    {
        FixtureState::$parameters[7]['MASK_MARKUP_MODE'] = '1';
        $this->rows([$this->row('Fixpreis', 99)], 10, 110);
        self::assertSame("\nTreibstoffzuschlag 10,00% auf 100,00 EUR = 10,00 EUR\nSelbsterfasserrabatt 10,00% auf 110,00 EUR = -11,00 EUR",
            checkDiscountStr(123, 10, 99, 0));
        self::assertCount(2, FixtureState::$writes);
        self::assertSame(['c', '0.1', 's', 'Treibstoffzuschlag', 'p', '100', 't', '10'], $this->item(0));
        self::assertSame(['c', '0.1', 's', 'Selbsterfasserrabatt', 'p', '110', 't', '-11'], $this->item(1));
    }

    public function testLegacyEuroByteIsPreserved(): void
    {
        FixtureState::$parameters[7] = ['MASK_MARKUP_MODE' => '1', 'INV_USE_EURO_SIGN' => '1'];
        $this->rows([$this->row('Fixpreis', 110)]);
        self::assertSame("\nTreibstoffzuschlag 10,00% auf 100,00 " . chr(128) . ' = 10,00 ' . chr(128),
            checkDiscountStr(123, 10, 110, 0));
    }
}