<?php
namespace nur\sery\db\sqlite;

use nulib\tests\TestCase;
use nur\sery\db\Capacitor;
use nur\sery\db\CapacitorChannel;

class SqliteCapacitorTest extends TestCase {
  function _testChargeStrings(SqliteCapacitor $capacitor, ?string $channel) {
    $capacitor->reset($channel);
    $capacitor->charge($channel, "first");
    $capacitor->charge($channel, "second");
    $capacitor->charge($channel, "third");
    $items = iterator_to_array($capacitor->discharge($channel, null, false));
    self::assertSame(["first", "second", "third"], $items);
  }

  function _testChargeArrays(SqliteCapacitor $capacitor, ?string $channel) {
    $capacitor->reset($channel);
    $capacitor->charge($channel, ["id" => 10, "name" => "first"]);
    $capacitor->charge($channel, ["name" => "second", "id" => 20]);
    $capacitor->charge($channel, ["name" => "third", "id" => "30"]);
  }

  function testChargeStrings() {
    $capacitor = new SqliteCapacitor(__DIR__.'/capacitor.db');
    $this->_testChargeStrings($capacitor, null);
    $capacitor->close();
  }

  function testChargeArrays() {
    $capacitor = new SqliteCapacitor(__DIR__.'/capacitor.db');
    $capacitor->addChannel(new class extends CapacitorChannel {
      const NAME = "arrays";
      function getKeyDefinitions(): ?array {
        return ["id" => "integer"];
      }
      function getKeyValues($item): ?array {
        return ["id" => $item["id"] ?? null];
      }
    });

    $this->_testChargeStrings($capacitor, "strings");
    $this->_testChargeArrays($capacitor, "arrays");
    $capacitor->close();
  }

  function testEach() {
    $capacitor = new SqliteCapacitor(__DIR__.'/capacitor.db');
    $capacitor = new Capacitor($capacitor, new class extends CapacitorChannel {
      const NAME = "each";

      function getKeyDefinitions(): ?array {
        return [
          "age" => "integer",
          "done" => "integer default 0",
        ];
      }
      function getKeyValues($item): ?array {
        return [
          "age" => $item["age"],
        ];
      }
    });

    $capacitor->reset();
    $capacitor->charge(["name" => "first", "age" => 5]);
    $capacitor->charge(["name" => "second", "age" => 10]);
    $capacitor->charge(["name" => "third", "age" => 15]);
    $capacitor->charge(["name" => "fourth", "age" => 20]);

    $setDone = function ($item, $row, $suffix=null) {
      $updates = ["done" => 1];
      if ($suffix !== null) {
        $item["name"] .= $suffix;
        $updates["_item"] = $item;
      }
      return $updates;
    };
    $capacitor->each(["age" => [">", 10]], $setDone, ["++"]);
    $capacitor->each(["done" => 0], $setDone, null);
    Txx(iterator_to_array($capacitor->discharge(null, false)));

    $capacitor->close();
    self::assertTrue(true);
  }

  function testPrimayKey() {
    $capacitor = new SqliteCapacitor(__DIR__.'/capacitor.db');
    $capacitor = new Capacitor($capacitor, new class extends CapacitorChannel {
      const NAME = "pk";

      function getKeyDefinitions(): ?array {
        return [
          "_id" => "varchar primary key",
          "done" => "integer default 0",
        ];
      }
      function getKeyValues($item): ?array {
        return [
          "_id" => $item["numero"],
        ];
      }
    });

    $capacitor->charge(["numero" => "a", "name" => "first", "age" => 5]);
    $capacitor->charge(["numero" => "b", "name" => "second", "age" => 10]);
    $capacitor->charge(["numero" => "c", "name" => "third", "age" => 15]);
    $capacitor->charge(["numero" => "d", "name" => "fourth", "age" => 20]);
    sleep(2);
    $capacitor->charge(["numero" => "b", "name" => "second", "age" => 100]);
    $capacitor->charge(["numero" => "d", "name" => "fourth", "age" => 200]);

    $capacitor->close();
    self::assertTrue(true);
  }
}