<?php
declare(strict_types=1);
namespace JKingWeb\Arsse;
use JKingWeb\Arsse\Rest\Request;
use JKingWeb\Arsse\Rest\Response;
use JKingWeb\Arsse\Test\Result;
use Phake;


class TestNCNV1_2 extends \PHPUnit\Framework\TestCase {
    use Test\Tools;

    protected $h;

    function setUp() {
        $this->clearData();
        // create a mock user manager
        Data::$user = Phake::mock(User::class);
        Phake::when(Data::$user)->authHTTP->thenReturn(true);
        Data::$user->id = "john.doe@example.com";
        // create a mock database interface
        Data::$db = Phake::mock(Database::Class);
        $this->h = new REST\NextCloudNews\V1_2();
    }

    function tearDown() {
        $this->clearData();
    }

    function testRespondToInvalidPaths() {
        $errs = [
            404 => [
                ['GET',    "/"],
                ['PUT',    "/"],
                ['POST',   "/"],
                ['DELETE', "/"],
                ['GET',    "/folders/1/invalid"],
                ['PUT',    "/folders/1/invalid"],
                ['POST',   "/folders/1/invalid"],
                ['DELETE', "/folders/1/invalid"],
                ['GET',    "/version/invalid"],
                ['PUT',    "/version/invalid"],
                ['POST',   "/version/invalid"],
                ['DELETE', "/version/invalid"],
            ],
            405 => [
                'GET' => [
                    ['PUT',    "/version"],
                    ['POST',   "/version"],
                    ['DELETE', "/version"],
                ],
                'GET, POST' => [
                    ['PUT',    "/folders"],
                    ['DELETE', "/folders"],
                ],
                'PUT, DELETE' => [
                    ['GET',    "/folders/1"],
                    ['POST',   "/folders/1"],
                ],
            ],
        ];
        foreach($errs[404] as $req) {
            $exp = new Response(404);
            list($method, $path) = $req;
            $this->assertEquals($exp, $this->h->dispatch(new Request($method, $path)), "$method call to $path did not return 404.");
        }
        foreach($errs[405] as $allow => $cases) {
            $exp = new Response(405, "", "", ['Allow: '.$allow]);
            foreach($cases as $req) {
                list($method, $path) = $req;
                $this->assertEquals($exp, $this->h->dispatch(new Request($method, $path)), "$method call to $path did not return 405.");
            }
        }
    }

    function testListFolders() {
        $list = [
            ['id' => 1,  'name' => "Software", 'parent' => null],
            ['id' => 12, 'name' => "Hardware", 'parent' => null],
        ];
        Phake::when(Data::$db)->folderList(Data::$user->id, null, false)->thenReturn(new Result($list));
        $exp = new Response(200, ['folders' => $list]);
        $this->assertEquals($exp, $this->h->dispatch(new Request("GET", "/folders")));
    }

    function testAddAFolder() {
        $in = [
            ["name" => "Software"],
            ["name" => "Hardware"],
        ];
        $out = [
            ['id' => 1, 'name' => "Software", 'parent' => null],
            ['id' => 2, 'name' => "Hardware", 'parent' => null],
        ];
        // set of various mocks for testing
        Phake::when(Data::$db)->folderAdd(Data::$user->id, $in[0])->thenReturn(1)->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("constraintViolation")); // error on the second call
        Phake::when(Data::$db)->folderAdd(Data::$user->id, $in[1])->thenReturn(2)->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("constraintViolation")); // error on the second call
        Phake::when(Data::$db)->folderPropertiesGet(Data::$user->id, 1)->thenReturn($out[0]);
        Phake::when(Data::$db)->folderPropertiesGet(Data::$user->id, 2)->thenReturn($out[1]);
        // set up mocks that produce errors
        Phake::when(Data::$db)->folderAdd(Data::$user->id, [])->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("missing"));
        Phake::when(Data::$db)->folderAdd(Data::$user->id, ['name' => ""])->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("missing"));
        Phake::when(Data::$db)->folderAdd(Data::$user->id, ['name' => " "])->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("whitespace"));
        // correctly add two folders, using different means
        $exp = new Response(200, ['folders' => [$out[0]]]);
        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "/folders", json_encode($in[0]), 'application/json')));
        $exp = new Response(200, ['folders' => [$out[1]]]);
        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "/folders?name=Hardware")));
        Phake::verify(Data::$db)->folderAdd(Data::$user->id, $in[0]);
        Phake::verify(Data::$db)->folderAdd(Data::$user->id, $in[1]);
        Phake::verify(Data::$db)->folderPropertiesGet(Data::$user->id, 1);
        Phake::verify(Data::$db)->folderPropertiesGet(Data::$user->id, 2);
        // test bad folder names
        $exp = new Response(422);
        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "/folders")));
        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "/folders", '{"name":""}', 'application/json')));
        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "/folders", '{"name":" "}', 'application/json')));
        // try adding the same two folders again
        $exp = new Response(409);
        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "/folders?name=Software")));
        $exp = new Response(409);
        $this->assertEquals($exp, $this->h->dispatch(new Request("POST", "/folders", json_encode($in[1]), 'application/json')));
    }

    function testRemoveAFolder() {
        Phake::when(Data::$db)->folderRemove(Data::$user->id, 1)->thenReturn(true)->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("idMissing"));
        $exp = new Response(204);
        $this->assertEquals($exp, $this->h->dispatch(new Request("DELETE", "/folders/1")));
        // fail on the second invocation because it no longer exists
        $exp = new Response(404);
        $this->assertEquals($exp, $this->h->dispatch(new Request("DELETE", "/folders/1")));
        Phake::verify(Data::$db, Phake::times(2))->folderRemove(Data::$user->id, 1);
        // use a non-integer folder ID
        $exp = new Response(404);
        $this->assertEquals($exp, $this->h->dispatch(new Request("DELETE", "/folders/invalid")));
    }

    function testRenameAFolder() {
        $in = [
            ["name" => "Software"],
            ["name" => "Software"],
            ["name" => ""],
            ["name" => " "],
            [],
        ];
        Phake::when(Data::$db)->folderPropertiesSet(Data::$user->id, 1, $in[0])->thenReturn(true);
        Phake::when(Data::$db)->folderPropertiesSet(Data::$user->id, 2, $in[1])->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("constraintViolation"));
        Phake::when(Data::$db)->folderPropertiesSet(Data::$user->id, 1, $in[2])->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("missing"));
        Phake::when(Data::$db)->folderPropertiesSet(Data::$user->id, 1, $in[3])->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("whitespace"));
        Phake::when(Data::$db)->folderPropertiesSet(Data::$user->id, 1, $in[4])->thenReturn(true); // this should be stopped by the handler before the request gets to the database
        Phake::when(Data::$db)->folderPropertiesSet(Data::$user->id, 3, $this->anything())->thenThrow(new \JKingWeb\Arsse\Db\ExceptionInput("idMissing")); // folder ID 3 does not exist
        $exp = new Response(204);
        $this->assertEquals($exp, $this->h->dispatch(new Request("PUT", "/folders/1", json_encode($in[0]), 'application/json')));
        $exp = new Response(409);
        $this->assertEquals($exp, $this->h->dispatch(new Request("PUT", "/folders/2", json_encode($in[1]), 'application/json')));
        $exp = new Response(422);
        $this->assertEquals($exp, $this->h->dispatch(new Request("PUT", "/folders/1", json_encode($in[2]), 'application/json')));
        $exp = new Response(422);
        $this->assertEquals($exp, $this->h->dispatch(new Request("PUT", "/folders/1", json_encode($in[3]), 'application/json')));
        $exp = new Response(422);
        $this->assertEquals($exp, $this->h->dispatch(new Request("PUT", "/folders/1", json_encode($in[4]), 'application/json')));
        $exp = new Response(404);
        $this->assertEquals($exp, $this->h->dispatch(new Request("PUT", "/folders/3", json_encode($in[0]), 'application/json')));
    }

    function testRetrieveServerVersion() {
        $exp = new Response(200, ['version' => \JKingWeb\Arsse\VERSION]);
        $this->assertEquals($exp, $this->h->dispatch(new Request("GET", "/version")));
    }
}