from rest_framework import serializers

from dj_filer.admin import get_thumbs
from apps.course.models import Course, CourseCategory, Attachment, Glossary
from apps.account.serializers import UserProfileSerializer




class CourseCategorySerializer(serializers.ModelSerializer):
    course_count = serializers.SerializerMethodField()
    
    class Meta:
        model = CourseCategory
        fields = ['name', 'slug', 'course_count'] 

    def get_course_count(self, obj):
        # return obj.course_count
        return 25


class CourseListSerializer(serializers.ModelSerializer):
    category = CourseCategorySerializer()
    thumbnail = serializers.SerializerMethodField()
    participant_count = serializers.SerializerMethodField()

    class Meta:
        model = Course        
        fields = [
            'id',
            'title',
            'slug',
            'participant_count',
            'category',
            'thumbnail',
            'is_online',
            'level',
            'duration',
            'lessons_count',
            'short_description',
            'status',
            'is_free',
            'price',
            'discount_percentage',
            'final_price',    
        ]

    def get_thumbnail(self, obj):
        return get_thumbs(obj.thumbnail, self.context.get('request'))
    
    def get_participant_count(self, obj):
        return 120
    
    
    
class CourseDetailSerializer(serializers.ModelSerializer):
    category = CourseCategorySerializer()
    professor = UserProfileSerializer()
    thumbnail = serializers.SerializerMethodField()
    participant_count = serializers.SerializerMethodField()

    class Meta:
        model = Course        
        fields = [
            'id',
            'title',
            'slug',
            'category',
            'participant_count',
            'professor',
            'thumbnail',
            'video_type',
            'video_file',
            'video_link',
            'is_online',
            'level',
            'duration',
            'lessons_count',
            'short_description',
            'status',
            'is_free',
            'price',
            'discount_percentage',
            'final_price',
            'timing',
            'features',
        ]

    def get_thumbnail(self, obj):
        return get_thumbs(obj.thumbnail, self.context.get('request'))
    
    def get_participant_count(self, obj):
        return 120

    
    

class AttachmentSerializer(serializers.ModelSerializer):
    class Meta:
        model = Attachment
        fields = ['id', 'title', 'file', 'file_size']
        

class GlossarySerializer(serializers.ModelSerializer):
    class Meta:
        model = Glossary
        fields = ['id', 'title', 'description']