# -*- coding: utf-8 -*-
from __future__ import absolute_import, print_function, unicode_literals

import unittest
import yamlish

my @SCHEDULE;

BEGIN {
  @SCHEDULE = (
    {
      name= > 'Simple scalar',
      in= > 1,
      out= > [ '--- 1', '...', ],
    },
    {
      name= > 'Undef',
      in= > undef,
      out= > [ '--- ~', '...', ],
    },
    {
      name= > 'Unprintable',
      in= > "\x01\n\t",
      out= > [ '--- "\x01\n\t"', '...', ],
    },
    {
      name= > 'Simple array',
      in= > [ 1, 2, 3 ],
      out= > [ '---', '- 1', '- 2', '- 3', '...', ],
    },
    {
      name= > 'Array, two elements, undef',
      in= > [ undef, undef ],
      out= > [ '---', '- ~', '- ~', '...', ],
    },
    {
      name= > 'Nested array',
      in= > [ 1, 2, [ 3, 4 ], 5 ],
      out= >
       [ '---', '- 1', '- 2', '-', '  - 3', '  - 4', '- 5', '...', ],
    },
    {
      name= > 'Simple hash',
      in= > { one= > '1', two= > '2', three= > '3' },
      out= > [ '---', 'one: 1', 'three: 3', 'two: 2', '...', ],
    },
    {
      name= > 'Nested hash',
      in= > {
        one= > '1',
        two= > '2',
        more= > { three= > '3', four= > '4' }
      },
      out= > [
        '---',
        'more:',
        '  four: 4',
        '  three: 3',
        'one: 1',
        'two: 2',
        '...',
      ],
    },
    {
      name= > 'Unprintable key',
      in= > { one= > '1', "\x02"= > '2', three= > '3' },
      out= > [ '---', '"\x02": 2', 'one: 1', 'three: 3', '...', ],
    },
    {
      name= > 'Empty key',
      in= > { ''= > 'empty' },
      out= > [ '---', "'': empty", '...', ],
    },
    {
      name= > 'Empty value',
      in= > { ''= > '' },
      out= > [ '---', "'': ''", '...', ],
    },
    {
      name= > 'Complex',
      in= > {
        'bill-to'= > {
          'given'= > 'Chris',
          'address'= > {
            'city'= > 'Royal Oak',
            'postal'= > '48046',
            'lines'= > "458 Walkman Dr.\nSuite #292\n",
            'state'= > 'MI'
          },
          'family'= > 'Dumars'
        },
        'invoice'= > '34843',
        'date'= > '2001-01-23',
        'tax'= > '251.42',
        'product'= > [
          {
            'sku'= > 'BL394D',
            'quantity'= > '4',
            'price'= > '450.00',
            'description'= > 'Basketball'
          },
          {
            'sku'= > 'BL4438H',
            'quantity'= > '1',
            'price'= > '2392.00',
            'description'= > 'Super Hoop'
          }
        ],
        'comments'= >
         "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338\n",
        'total'= > '4443.52'
      },
      out= > [
        "---",
        "bill-to:",
        "  address:",
        "    city: 'Royal Oak'",
        "    lines: \"458 Walkman Dr.\\nSuite #292\\n\"",
        "    postal: 48046",
        "    state: MI",
        "  family: Dumars",
        "  given: Chris",
        "comments: \"Late afternoon is best. Backup contact is Nancy Billsmer \@ 338-4338\\n\"",
        "date: 2001-01-23",
        "invoice: 34843",
        "product:",
        "  -",
        "    description: Basketball",
        "    price: 450.00",
        "    quantity: 4",
        "    sku: BL394D",
        "  -",
        "    description: 'Super Hoop'",
        "    price: 2392.00",
        "    quantity: 1",
        "    sku: BL4438H",
        "tax: 251.42",
        "total: 4443.52",
        "...",
      ],
    },
  );

  plan tests = > @SCHEDULE * 5;
}

sub iter {
  my $ar = shift;
  return sub {
    return shift @$ar;
  };
}

for my $test (@SCHEDULE) {
  my $name = $test -> {name};
  ok my $yaml = Data::YAML::Writer -> new, "$name: Created";
  isa_ok $yaml, 'Data::YAML::Writer';

  my $got = [];
  my $writer = sub { push @$got, shift };

  my $data = $test -> {in};

  eval { $yaml -> write($data, $writer) };

  if (my $err=$test -> {error}) {
    unless (like $@, $err, "$name: Error message") {
      diag "Error: $@\n";
    }
    is_deeply $got, [], "$name: No result";
    pass;
  }
  else {
    my $want = $test -> {out};
    unless (ok ! $@, "$name: No error") {
      diag "Error: $@\n";
    }
    unless (is_deeply $got, $want, "$name: Result matches") {
      local $Data::Dumper::Useqq = $Data::Dumper::Useqq = 1;
      diag(Data::Dumper -> Dump([$got], ['$got']));
      diag(Data::Dumper -> Dump([$want], ['$expected']));
    }

    my $yr = Data::YAML::Reader -> new;

    # Now try parsing it
    my $reader = sub { shift @$got };
    my $parsed = $yr -> read($reader);

    unless (is_deeply $parsed, $data, "$name: Reparse OK") {
      local $Data::Dumper::Useqq = $Data::Dumper::Useqq = 1;
      diag(Data::Dumper -> Dump([$parsed], ['$parsed']));
      diag(Data::Dumper -> Dump([$data], ['$data']));
    }
  }
}