/*
 * Copyright (C) 2017, David PHAM-VAN <dev.nfet.net@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import 'dart:io';

import 'package:pdf/pdf.dart';
import 'package:pdf/widgets.dart';
import 'package:test/test.dart';

late Document pdf;

final _blueBox = Container(
  width: 50,
  height: 50,
  color: PdfColors.blue,
);

final _redBox = Container(
  width: 50,
  height: 50,
  color: PdfColors.red,
);

final _yellowBox = Container(
  width: 50,
  height: 50,
  color: PdfColors.yellow,
);


void main() {
  setUpAll(() {
    Document.debug = true;
    pdf = Document();
  });

  test('Should render a blue box followed by a red box ordered RTL aligned right', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 50),
        build: (Context context) => Row(
          children: [_blueBox, _redBox],
        ),
      ),
    );
  });

  test('Should render a blue box followed by a red box ordered RTL with aligned center', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 50),
        build: (Context context) => Row(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [_blueBox, _redBox],
        ),
      ),
    );
  });

  test('Should render a blue box followed by a red box ordered RTL with CrossAxisAlignment.end aligned right', () {
    pdf.addPage(
      Page(
        pageFormat: const PdfPageFormat(150, 100),
        textDirection: TextDirection.rtl,
        build: (Context context) => SizedBox(
          width: 150,
          height: 100,
          child: Row(
            crossAxisAlignment: CrossAxisAlignment.end,
            children: [_blueBox, _redBox],
          ),
        ),
      ),
    );
  });
  test('Should render a blue box followed by a red box ordered LTR aligned left', () {
    pdf.addPage(
      Page(
        pageFormat: const PdfPageFormat(150, 50),
        build: (Context context) => Row(
          children: [_blueBox, _redBox],
        ),
      ),
    );
  });
  test('Should render a blue box followed by a red box ordered TTB aligned right', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) => SizedBox(
          width: 150,
          height: 150,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [_blueBox, _redBox],
          ),
        ),
      ),
    );
  });
  test('Should render a blue box followed by a red box ordered TTB aligned left', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.ltr,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) => SizedBox(
          width: 150,
          height: 150,
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [_blueBox, _redBox],
          ),
        ),
      ),
    );
  });

  test('Wrap Should render blue,red,yellow ordered RTL', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) => SizedBox(
            width: 150,
            height: 150,
            child: Wrap(
              children: [_blueBox, _redBox, _yellowBox],
            )),
      ),
    );
  });

  test('Wrap Should render blue,red,yellow ordered LTR', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.ltr,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) => SizedBox(
            width: 150,
            height: 150,
            child: Wrap(
              children: [_blueBox, _redBox, _yellowBox],
            )),
      ),
    );
  });
  test('Wrap Should render blue,red,yellow ordered RTL aligned center', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) => SizedBox(
            width: 150,
            height: 150,
            child: Wrap(
              spacing: 10,
              runSpacing: 10,
              runAlignment: WrapAlignment.center,
              children: [_blueBox, _redBox, _yellowBox],
            )),
      ),
    );
  });

  test('Wrap Should render blue,red,yellow ordered RTL aligned bottom', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) => SizedBox(
            width: 150,
            height: 150,
            child: Wrap(
              spacing: 10,
              runSpacing: 10,
              runAlignment: WrapAlignment.end,
              children: [_blueBox, _redBox, _yellowBox],
            )),
      ),
    );
  });

  test('RTL Page Should render child aligned right', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) {
          return _blueBox;
        },
      ),
    );
  });

  test('LTR Page Should render child aligned left', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.ltr,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) {
          return _blueBox;
        },
      ),
    );
  });

  test('RTL Multi Page Should render child aligned right', () {
    pdf.addPage(
      MultiPage(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) {
          return [
            ListView(children: [
              for(int i = 0; i < 30; i++)
                Text('Hello World')
            ]),
          ];
        },
      ),
    );
  });

  test('LTR Multi Page Should render child aligned left', () {
    pdf.addPage(
      MultiPage(
        textDirection: TextDirection.ltr,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) {
          return [
            ListView(children: [
              for(int i = 0; i < 30; i++)
                Text('Hello World')
            ]),
          ];
        },
      ),
    );
  });

  test('Should render a blue box padded from right', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.rtl,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) {
          return Padding(
            padding: const EdgeInsetsDirectional.only(start: 20),
            child: _blueBox,
          );
        },
      ),
    );
  });

  test('Should render a blue box padded from left', () {
    pdf.addPage(
      Page(
        textDirection: TextDirection.ltr,
        pageFormat: const PdfPageFormat(150, 150),
        build: (Context context) {
          return Padding(
            padding: const EdgeInsetsDirectional.only(start: 20),
            child: _blueBox,
          );
        },
      ),
    );
  });

  tearDownAll(() async {
    final file = File('rtl-layout.pdf');
    await file.writeAsBytes(await pdf.save());
  });
}