use Mojo::Base -strict;

use Test::More;
use Carp 'croak';
use Config;
use Mojo::Asset::File;
use Mojo::Asset::Memory;
use Mojo::File qw(path tempdir);

# File asset
my $file = Mojo::Asset::File->new;
is $file->size, 0, 'file is empty';
is $file->mtime, (stat $file->handle)[9], 'right mtime';
is $file->slurp, '', 'file is empty';
$file->add_chunk('abc');
is $file->contains('abc'), 0,  '"abc" at position 0';
is $file->contains('bc'),  1,  '"bc" at position 1';
is $file->contains('db'),  -1, 'does not contain "db"';
is $file->size, 3, 'right size';
is $file->mtime, (stat $file->handle)[9], 'right mtime';
is $file->to_file, $file, 'same object';

# Cleanup
my $path = $file->path;
ok -e $path, 'temporary file exists';
undef $file;
ok !-e $path, 'temporary file has been cleaned up';

# Memory asset
my $mem = Mojo::Asset::Memory->new;
$mem->add_chunk('abc');
is $mem->contains('abc'), 0,  '"abc" at position 0';
is $mem->contains('bc'),  1,  '"bc" at position 1';
is $mem->contains('db'),  -1, 'does not contain "db"';
is $mem->size, 3, 'right size';
is $mem->mtime, $^T, 'right mtime';
is $mem->mtime, Mojo::Asset::Memory->new->mtime, 'same mtime';
my $mtime = $mem->mtime;
is $mem->mtime($mtime + 23)->mtime, $mtime + 23, 'right mtime';

# Asset upgrade from memory to file
$mem = Mojo::Asset::Memory->new;
$mem->add_chunk('abcdef');
isa_ok $mem->to_file, 'Mojo::Asset::File', 'right class';
is $mem->to_file->slurp, $mem->slurp, 'same content';
$file = $mem->to_file;
$path = $file->path;
ok -e $path, 'file exists';
undef $file;
ok !-e $path, 'file has been cleaned up';

# Empty file asset
$file = Mojo::Asset::File->new;
is $file->size, 0, 'asset is empty';
is $file->get_chunk(0), '', 'no content';
is $file->slurp, '', 'no content';
is $file->contains('a'), -1, 'does not contain "a"';

# Empty memory asset
$mem = Mojo::Asset::Memory->new;
is $mem->size, 0, 'asset is empty';
is $mem->get_chunk(0), '', 'no content';
is $mem->slurp, '', 'no content';
ok !$mem->is_range, 'no range';
is $mem->contains('a'), -1, 'does not contain "a"';

# File asset range support (a[bcdefabc])
$file = Mojo::Asset::File->new(start_range => 1);
ok $file->is_range, 'has range';
$file->add_chunk('abcdefabc');
is $file->contains('bcdef'), 0,  '"bcdef" at position 0';
is $file->contains('cdef'),  1,  '"cdef" at position 1';
is $file->contains('abc'),   5,  '"abc" at position 5';
is $file->contains('db'),    -1, 'does not contain "db"';

# Memory asset range support (a[bcdefabc])
$mem = Mojo::Asset::Memory->new(start_range => 1);
ok $mem->is_range, 'has range';
$mem->add_chunk('abcdefabc');
is $mem->contains('bcdef'), 0,  '"bcdef" at position 0';
is $mem->contains('cdef'),  1,  '"cdef" at position 1';
is $mem->contains('abc'),   5,  '"abc" at position 5';
is $mem->contains('db'),    -1, 'does not contain "db"';

# File asset range support (ab[cdefghi]jk)
$file = Mojo::Asset::File->new(start_range => 2, end_range => 8);
ok $file->is_range, 'has range';
$file->add_chunk('abcdefghijk');
is $file->contains('cdefghi'), 0,         '"cdefghi" at position 0';
is $file->contains('fghi'),    3,         '"fghi" at position 3';
is $file->contains('f'),       3,         '"f" at position 3';
is $file->contains('hi'),      5,         '"hi" at position 5';
is $mem->contains('ij'),       -1,        'does not contain "ij"';
is $file->contains('db'),      -1,        'does not contain "db"';
is $file->get_chunk(0),        'cdefghi', 'chunk from position 0';
is $file->get_chunk(1),        'defghi',  'chunk from position 1';
is $file->get_chunk(5),        'hi',      'chunk from position 5';
is $file->get_chunk(0, 2), 'cd',  'chunk from position 0 (2 bytes)';
is $file->get_chunk(1, 3), 'def', 'chunk from position 1 (3 bytes)';
is $file->get_chunk(5, 1), 'h',   'chunk from position 5 (1 byte)';
is $file->get_chunk(5, 3), 'hi',  'chunk from position 5 (2 byte)';

# Memory asset range support (ab[cdefghi]jk)
$mem = Mojo::Asset::Memory->new(start_range => 2, end_range => 8);
ok $mem->is_range, 'has range';
$mem->add_chunk('abcdefghijk');
is $mem->contains('cdefghi'), 0,         '"cdefghi" at position 0';
is $mem->contains('fghi'),    3,         '"fghi" at position 3';
is $mem->contains('f'),       3,         '"f" at position 3';
is $mem->contains('hi'),      5,         '"hi" at position 5';
is $mem->contains('ij'),      -1,        'does not contain "ij"';
is $mem->contains('db'),      -1,        'does not contain "db"';
is $mem->get_chunk(0),        'cdefghi', 'chunk from position 0';
is $mem->get_chunk(1),        'defghi',  'chunk from position 1';
is $mem->get_chunk(5),        'hi',      'chunk from position 5';
is $mem->get_chunk(0, 2), 'cd',  'chunk from position 0 (2 bytes)';
is $mem->get_chunk(1, 3), 'def', 'chunk from position 1 (3 bytes)';
is $mem->get_chunk(5, 1), 'h',   'chunk from position 5 (1 byte)';
is $mem->get_chunk(5, 3), 'hi',  'chunk from position 5 (2 byte)';

# Huge file asset
$file = Mojo::Asset::File->new;
ok !$file->is_range, 'no range';
$file->add_chunk('a' x 131072);
$file->add_chunk('b');
$file->add_chunk('c' x 131072);
$file->add_chunk('ddd');
is $file->contains('a'),    0,      '"a" at position 0';
is $file->contains('b'),    131072, '"b" at position 131072';
is $file->contains('c'),    131073, '"c" at position 131073';
is $file->contains('abc'),  131071, '"abc" at position 131071';
is $file->contains('ccdd'), 262143, '"ccdd" at position 262143';
is $file->contains('dd'),   262145, '"dd" at position 262145';
is $file->contains('ddd'),  262145, '"ddd" at position 262145';
is $file->contains('e'),    -1,     'does not contain "e"';
is $file->contains('a' x 131072), 0,      '"a" x 131072 at position 0';
is $file->contains('c' x 131072), 131073, '"c" x 131072 at position 131073';
is $file->contains('b' . ('c' x 131072) . "ddd"), 131072,
  '"b" . ("c" x 131072) . "ddd" at position 131072';

# Huge file asset with range
$file = Mojo::Asset::File->new(start_range => 1, end_range => 262146);
$file->add_chunk('a' x 131072);
$file->add_chunk('b');
$file->add_chunk('c' x 131072);
$file->add_chunk('ddd');
is $file->contains('a'),    0,      '"a" at position 0';
is $file->contains('b'),    131071, '"b" at position 131071';
is $file->contains('c'),    131072, '"c" at position 131072';
is $file->contains('abc'),  131070, '"abc" at position 131070';
is $file->contains('ccdd'), 262142, '"ccdd" at position 262142';
is $file->contains('dd'),   262144, '"dd" at position 262144';
is $file->contains('ddd'),  -1,     'does not contain "ddd"';
is $file->contains('b' . ('c' x 131072) . 'ddd'), -1,
  'does not contain "b" . ("c" x 131072) . "ddd"';

# Move memory asset to file
$mem = Mojo::Asset::Memory->new->add_chunk('abc');
my $tmp = Mojo::Asset::File->new->add_chunk('x');
$path = $tmp->path;
ok -e $path, 'file exists';
undef $tmp;
ok !-e $path, 'file has been cleaned up';
is $mem->move_to($path)->slurp, 'abc', 'right content';
ok -e $path, 'file exists';
ok unlink($path), 'unlinked file';
ok !-e $path, 'file has been cleaned up';
is(Mojo::Asset::Memory->new->move_to($path)->slurp, '', 'no content');
ok -e $path, 'file exists';
ok unlink($path), 'unlinked file';
ok !-e $path, 'file has been cleaned up';

# Move file asset to file
$file = Mojo::Asset::File->new;
$file->add_chunk('bcd');
$tmp = Mojo::Asset::File->new;
$tmp->add_chunk('x');
isnt $file->path, $tmp->path, 'different paths';
$path = $tmp->path;
ok -e $path, 'file exists';
undef $tmp;
ok !-e $path, 'file has been cleaned up';
is $file->move_to($path)->slurp, 'bcd', 'right content';
undef $file;
ok -e $path, 'file exists';
ok unlink($path), 'unlinked file';
ok !-e $path, 'file has been cleaned up';
is(Mojo::Asset::File->new->move_to($path)->slurp, '', 'no content');
ok -e $path, 'file exists';
ok unlink($path), 'unlinked file';
ok !-e $path, 'file has been cleaned up';

# Upgrade
my $asset = Mojo::Asset::Memory->new(max_memory_size => 5, auto_upgrade => 1);
my $upgrade;
$asset->on(upgrade => sub { $upgrade++ });
$asset = $asset->add_chunk('lala');
ok !$upgrade, 'upgrade event has not been emitted';
ok !$asset->is_file, 'stored in memory';
$asset = $asset->add_chunk('lala');
is $upgrade, 1, 'upgrade event has been emitted once';
ok $asset->is_file, 'stored in file';
$asset = $asset->add_chunk('lala');
is $upgrade, 1, 'upgrade event was not emitted again';
ok $asset->is_file, 'stored in file';
is $asset->slurp,   'lalalalalala', 'right content';
ok $asset->cleanup, 'file will be cleaned up';
$asset = Mojo::Asset::Memory->new(max_memory_size => 5);
$asset = $asset->add_chunk('lala');
ok !$asset->is_file, 'stored in memory';
$asset = $asset->add_chunk('lala');
ok !$asset->is_file, 'stored in memory';

# Temporary directory
{
  local $ENV{MOJO_TMPDIR} = my $tmpdir = tempdir;
  $file = Mojo::Asset::File->new;
  is($file->tmpdir, $tmpdir, 'same directory');
  $file->add_chunk('works!');
  is $file->slurp, 'works!', 'right content';
  is path($file->path)->dirname, $tmpdir, 'same directory';
}

# Custom temporary file
{
  my $tmpdir = tempdir;
  my $path   = $tmpdir->child('test.file');
  ok !-e $path, 'file does not exist';
  $file = Mojo::Asset::File->new(path => $path);
  is $file->path, $path, 'right path';
  ok !-e $path, 'file still does not exist';
  $file->add_chunk('works!');
  ok -e $path, 'file exists';
  is $file->slurp, 'works!', 'right content';
  undef $file;
  ok !-e $path, 'file has been cleaned up';
}

# Temporary file without cleanup
$file = Mojo::Asset::File->new(cleanup => 0)->add_chunk('test');
ok $file->is_file, 'stored in file';
is $file->slurp,   'test', 'right content';
is $file->size,    4, 'right size';
is $file->mtime, (stat $file->handle)[9], 'right mtime';
is $file->contains('es'), 1, '"es" at position 1';
$path = $file->path;
undef $file;
ok -e $path, 'file exists';
ok unlink($path), 'unlinked file';
ok !-e $path, 'file has been cleaned up';

# Incomplete write
{
  no warnings 'redefine';
  local *IO::Handle::syswrite = sub { $! = 0; 2 };
  eval { Mojo::Asset::File->new->add_chunk('test') };
  like $@, qr/Can't write to asset: .*/, 'right error';
}

# Forked process
SKIP: {
  skip 'Real fork is required!', 5 if $Config{d_pseudofork};
  $file = Mojo::Asset::File->new->add_chunk('Fork test!');
  $path = $file->path;
  ok -e $path, 'file exists';
  is $file->slurp, 'Fork test!', 'right content';
  croak "Can't fork: $!" unless defined(my $pid = fork);
  exit 0 unless $pid;
  waitpid $pid, 0 if $pid;
  ok -e $path, 'file still exists';
  is $file->slurp, 'Fork test!', 'right content';
  undef $file;
  ok !-e $path, 'file has been cleaned up';
}

# Abstract methods
eval { Mojo::Asset->add_chunk };
like $@, qr/Method "add_chunk" not implemented by subclass/, 'right error';
eval { Mojo::Asset->contains };
like $@, qr/Method "contains" not implemented by subclass/, 'right error';
eval { Mojo::Asset->get_chunk };
like $@, qr/Method "get_chunk" not implemented by subclass/, 'right error';
eval { Mojo::Asset->move_to };
like $@, qr/Method "move_to" not implemented by subclass/, 'right error';
eval { Mojo::Asset->mtime };
like $@, qr/Method "mtime" not implemented by subclass/, 'right error';
eval { Mojo::Asset->size };
like $@, qr/Method "size" not implemented by subclass/, 'right error';
eval { Mojo::Asset->slurp };
like $@, qr/Method "slurp" not implemented by subclass/, 'right error';
eval { Mojo::Asset->to_file };
like $@, qr/Method "to_file" not implemented by subclass/, 'right error';

done_testing();
