# Created By: Virgil Dupras
# Created On: 2011/09/07
# Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
# 
# This software is licensed under the "GPLv3" License as described in the "LICENSE" file, 
# which should be included with this package. The terms are also available at 
# http://www.gnu.org/licenses/gpl-3.0.html

import os.path as op
from itertools import combinations

from .base import TestApp, NamedObject, with_app, eq_
from ..engine import Group, Match

no = NamedObject

def app_with_dupes(dupes):
    # Creates an app with specified dupes. dupes is a list of lists, each list in the list being
    # a dupe group. We cheat a little bit by creating dupe groups manually instead of running a
    # dupe scan, but it simplifies the test code quite a bit
    app = TestApp()
    groups = []
    for dupelist in dupes:
        g = Group()
        for dupe1, dupe2 in combinations(dupelist, 2):
            g.add_match(Match(dupe1, dupe2, 100))
        groups.append(g)
    app.app.results.groups = groups
    app.app._results_changed()
    return app

#---
def app_normal_results():
    # Just some results, with different extensions and size, for good measure.
    dupes = [
        [
            no('foo1.ext1', size=1, folder='folder1'),
            no('foo2.ext2', size=2, folder='folder2')
        ],
    ]
    return app_with_dupes(dupes)

@with_app(app_normal_results)
def test_kind_subcrit(app):
    # The subcriteria of the "Kind" criteria is a list of extensions contained in the dupes.
    app.select_pri_criterion("Kind")
    eq_(app.pdialog.criteria_list[:], ['ext1', 'ext2'])

@with_app(app_normal_results)
def test_kind_reprioritization(app):
    # Just a simple test of the system as a whole.
    # select a criterion, and perform re-prioritization and see if it worked.
    app.select_pri_criterion("Kind")
    app.pdialog.criteria_list.select([1]) # ext2
    app.pdialog.add_selected()
    app.pdialog.perform_reprioritization()
    eq_(app.rtable[0].data['name'], 'foo2.ext2')

@with_app(app_normal_results)
def test_folder_subcrit(app):
    app.select_pri_criterion("Folder")
    eq_(app.pdialog.criteria_list[:], ['folder1', 'folder2'])

@with_app(app_normal_results)
def test_folder_reprioritization(app):
    app.select_pri_criterion("Folder")
    app.pdialog.criteria_list.select([1]) # folder2
    app.pdialog.add_selected()
    app.pdialog.perform_reprioritization()
    eq_(app.rtable[0].data['name'], 'foo2.ext2')

@with_app(app_normal_results)
def test_prilist_display(app):
    # The prioritization list displays selected criteria correctly.
    app.select_pri_criterion("Kind")
    app.pdialog.criteria_list.select([1]) # ext2
    app.pdialog.add_selected()
    app.select_pri_criterion("Folder")
    app.pdialog.criteria_list.select([1]) # folder2
    app.pdialog.add_selected()
    app.select_pri_criterion("Size")
    app.pdialog.criteria_list.select([1]) # Lowest
    app.pdialog.add_selected()
    expected = [
        "Kind (ext2)",
        "Folder (folder2)",
        "Size (Lowest)",
    ]
    eq_(app.pdialog.prioritization_list[:], expected)

@with_app(app_normal_results)
def test_size_subcrit(app):
    app.select_pri_criterion("Size")
    eq_(app.pdialog.criteria_list[:], ['Highest', 'Lowest'])

@with_app(app_normal_results)
def test_size_reprioritization(app):
    app.select_pri_criterion("Size")
    app.pdialog.criteria_list.select([0]) # highest
    app.pdialog.add_selected()
    app.pdialog.perform_reprioritization()
    eq_(app.rtable[0].data['name'], 'foo2.ext2')

@with_app(app_normal_results)
def test_reorder_prioritizations(app):
    app.add_pri_criterion("Kind", 0) # ext1
    app.add_pri_criterion("Kind", 1) # ext2
    app.pdialog.prioritization_list.move_indexes([1], 0)
    expected = [
        "Kind (ext2)",
        "Kind (ext1)",
    ]
    eq_(app.pdialog.prioritization_list[:], expected)

@with_app(app_normal_results)
def test_remove_crit_from_list(app):
    app.add_pri_criterion("Kind", 0)
    app.add_pri_criterion("Kind", 1)
    app.pdialog.prioritization_list.select(0)
    app.pdialog.remove_selected()
    expected = [
        "Kind (ext2)",
    ]
    eq_(app.pdialog.prioritization_list[:], expected)

@with_app(app_normal_results)
def test_add_crit_without_selection(app):
    # Adding a criterion without having made a selection doesn't cause a crash.
    app.pdialog.add_selected() # no crash

#---
def app_one_name_ends_with_number():
    dupes = [
        [
            no('foo.ext'),
            no('foo1.ext'),
        ],
    ]
    return app_with_dupes(dupes)

@with_app(app_one_name_ends_with_number)
def test_filename_reprioritization(app):
    app.add_pri_criterion("Filename", 0) # Ends with a number
    app.pdialog.perform_reprioritization()
    eq_(app.rtable[0].data['name'], 'foo1.ext')

#---
def app_with_subfolders():
    dupes = [
        [
            no('foo1', folder='baz'),
            no('foo2', folder='foo/bar'),
        ],
        [
            no('foo3', folder='baz'),
            no('foo4', folder='foo'),
        ],
    ]
    return app_with_dupes(dupes)

@with_app(app_with_subfolders)
def test_folder_crit_is_sorted(app):
    # Folder subcriteria are sorted.
    app.select_pri_criterion("Folder")
    eq_(app.pdialog.criteria_list[:], ['baz', 'foo', op.join('foo', 'bar')])

@with_app(app_with_subfolders)
def test_folder_crit_includes_subfolders(app):
    # When selecting a folder crit, dupes in a subfolder are also considered as affected by that
    # crit.
    app.add_pri_criterion("Folder", 1) # foo
    app.pdialog.perform_reprioritization()
    # Both foo and foo/bar dupes will be prioritized
    eq_(app.rtable[0].data['name'], 'foo2')
    eq_(app.rtable[2].data['name'], 'foo4')

@with_app(app_with_subfolders)
def test_display_something_on_empty_extensions(app):
    # When there's no extension, display "None" instead of nothing at all.
    app.select_pri_criterion("Kind")
    eq_(app.pdialog.criteria_list[:], ['None'])

#---
def app_one_name_longer_than_the_other():
    dupes = [
        [
            no('shortest.ext'),
            no('loooongest.ext'),
        ],
    ]
    return app_with_dupes(dupes)

@with_app(app_one_name_longer_than_the_other)
def test_longest_filename_prioritization(app):
    app.add_pri_criterion("Filename", 2) # Longest
    app.pdialog.perform_reprioritization()
    eq_(app.rtable[0].data['name'], 'loooongest.ext')