from django.contrib import admin
from django.forms import Textarea
from django.db import models
# from ..activities.admin import ModelAdmin

from .videos.models import Video
from .models import (
    Course, Lesson, Unit, CourseProfessor, CourseStudent,
    StudentProgress, Class,
    ProfessorMessage,
    CourseAuthor,
)
from .course_material.models import CourseMaterial, File

from .workspaces.models import Workspace

from .classroom.models import Classroom, Event


class LessonInline(admin.TabularInline):
    model = Lesson
    formfield_overrides = {
        models.CharField: {'widget': Textarea(attrs={'rows': 3, 'class': 'span11'})},
    }


@admin.register(Course)
class CourseAdmin(admin.ModelAdmin):
    list_display = ('name', 'status', 'start_date',)
    inlines = (LessonInline,)
    filter_horizontal = [
        'groups',
    ]
    autocomplete_fields = [
        'forum',
    ]


class UnitInline(admin.TabularInline):
    model = Unit
    fields = ('title', 'video', 'position',)


@admin.register(Lesson)
class LessonAdmin(admin.ModelAdmin):
    list_display = ('name', 'course',)
    search_fields = ('course__name',)
    inlines = (UnitInline,)


@admin.register(Unit)
class UnitAdmin(admin.ModelAdmin):
    search_fields = ('title', 'lesson__name')
    list_display = ('title', 'position', 'lesson', 'video',)
    list_select_related = ('lesson', 'video')


@admin.register(CourseProfessor)
class CourseProfessorAdmin(admin.ModelAdmin):
    list_display = ('user', 'course',)


@admin.register(Video)
class VideoAdmin(admin.ModelAdmin):
    pass


@admin.register(Class)
class ClassAdmin(admin.ModelAdmin):
    search_fields = (
        'name',
        'course__name',
        'assistants__first_name',
        'assistants__email',
    )
    list_display = ('name', 'course')
    filter_horizontal = (
        'students',
        'assistants',
    )


@admin.register(StudentProgress)
class StudentProgressAdmin(admin.ModelAdmin):
    search_fields = ('user__username', 'user__email', )
    list_display = ('user', 'unit', 'complete', 'last_access')


@admin.register(CourseStudent)
class CourseStudentAdmin(admin.ModelAdmin):
    search_fields = ('user__username',)
    list_display = ('user', 'course')


# Course Materials admins
class FileInline(admin.TabularInline):
    model = File
    extra = 1


@admin.register(CourseMaterial)
class CourseMaterialAdmin(admin.ModelAdmin):
    search_fields = ('text',)
    list_display = ('course', 'text')
    inlines = [
        FileInline,
    ]


@admin.register(File)
class FileAdmin(admin.ModelAdmin):
    search_fields = ('file',)
    list_display = ('file', 'course_material')


@admin.register(Workspace)
class WorkspaceAdmin(admin.ModelAdmin):
    filter_horizontal = (
        'groups',
        'classes',
    )

@admin.register(ProfessorMessage)
class ProfessorMessageAdmin(admin.ModelAdmin):
    filter_horizontal = (
        'users',
    )


@admin.register(CourseAuthor)
class CourseAuthorAdmin(admin.ModelAdmin):
    pass

class EventInline(admin.TabularInline):
    model = Event

@admin.register(Classroom)
class ClassroomAdmin(admin.ModelAdmin):
    filter_horizontal = (
        'assistants',
        'coordinators',
        'access_groups',
    )
    autocomplete_fields = (
        'forum',
        'group',
    )
    inlines = (EventInline,)
    search_fields = (
        'name',
        'group__name',
        'assistants__name',
    )