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<?php

namespace Illuminate\Testing\Fluent\Concerns;

use Closure;

use Illuminate\Support\Arr;

use PHPUnit\Framework\Assert as PHPUnit;

trait Has

{

    /**

     * Assert that the prop is of the expected size.

     *

     * @param  string|int  $key

     * @param  int|null  $length

     * @return $this

     */

    public function count($key, int $length = null): self

    {

        if (is_null($length)) {

            $path = $this->dotPath();

            PHPUnit::assertCount(

                $key,

                $this->prop(),

                $path

                    ? sprintf('Property [%s] does not have the expected size.', $path)

                    : sprintf('Root level does not have the expected size.')

            );

            return $this;

        }

        PHPUnit::assertCount(

            $length,

            $this->prop($key),

            sprintf('Property [%s] does not have the expected size.', $this->dotPath($key))

        );

        return $this;

    }

    /**

     * Ensure that the given prop exists.

     *

     * @param  string|int  $key

     * @param  int|\Closure|null  $length

     * @param  \Closure|null  $callback

     * @return $this

     */

    public function has($key, $length = null, Closure $callback = null): self

    {

        $prop = $this->prop();

        if (is_int($key) && is_null($length)) {

            return $this->count($key);

        }

        PHPUnit::assertTrue(

            Arr::has($prop, $key),

            sprintf('Property [%s] does not exist.', $this->dotPath($key))

        );

        $this->interactsWith($key);

        if (! is_null($callback)) {

            return $this->has($key, function (self $scope) use ($length, $callback) {

                return $scope

                    ->tap(function (self $scope) use ($length) {

                        if (! is_null($length)) {

                            $scope->count($length);

                        }

                    })

                    ->first($callback)

                    ->etc();

            });

        }

        if (is_callable($length)) {

            return $this->scope($key, $length);

        }

        if (! is_null($length)) {

            return $this->count($key, $length);

        }

        return $this;

    }

    /**

     * Assert that all of the given props exist.

     *

     * @param  array|string  $key

     * @return $this

     */

    public function hasAll($key): self

    {

        $keys = is_array($key) ? $key : func_get_args();

        foreach ($keys as $prop => $count) {

            if (is_int($prop)) {

                $this->has($count);

            } else {

                $this->has($prop, $count);

            }

        }

        return $this;

    }

    /**

     * Assert that at least one of the given props exists.

     *

     * @param  array|string  $key

     * @return $this

     */

    public function hasAny($key): self

    {

        $keys = is_array($key) ? $key : func_get_args();

        PHPUnit::assertTrue(

            Arr::hasAny($this->prop(), $keys),

            sprintf('None of properties [%s] exist.', implode(', ', $keys))

        );

        foreach ($keys as $key) {

            $this->interactsWith($key);

        }

        return $this;

    }

    /**

     * Assert that none of the given props exist.

     *

     * @param  array|string  $key

     * @return $this

     */

    public function missingAll($key): self

    {

        $keys = is_array($key) ? $key : func_get_args();

        foreach ($keys as $prop) {

            $this->missing($prop);

        }

        return $this;

    }

    /**

     * Assert that the given prop does not exist.

     *

     * @param  string  $key

     * @return $this

     */

    public function missing(string $key): self

    {

        PHPUnit::assertNotTrue(

            Arr::has($this->prop(), $key),

            sprintf('Property [%s] was found while it was expected to be missing.', $this->dotPath($key))

        );

        return $this;

    }

    /**

     * Compose the absolute "dot" path to the given key.

     *

     * @param  string  $key

     * @return string

     */

    abstract protected function dotPath(string $key = ''): string;

    /**

     * Marks the property as interacted.

     *

     * @param  string  $key

     * @return void

     */

    abstract protected function interactsWith(string $key): void;

    /**

     * Retrieve a prop within the current scope using "dot" notation.

     *

     * @param  string|null  $key

     * @return mixed

     */

    abstract protected function prop(string $key = null);

    /**

     * Instantiate a new "scope" at the path of the given key.

     *

     * @param  string  $key

     * @param  \Closure  $callback

     * @return $this

     */

    abstract protected function scope(string $key, Closure $callback);

    /**

     * Disables the interaction check.

     *

     * @return $this

     */

    abstract public function etc();

    /**

     * Instantiate a new "scope" on the first element.

     *

     * @param  \Closure  $callback

     * @return $this

     */

    abstract public function first(Closure $callback);

}