serializers.py

from rest_framework import serializers
from django.contrib.auth import authenticate
from django.contrib.auth.models import User
from rest_framework.validators import UniqueValidator

class TokenSerializer(serializers.Serializer):
    token = serializers.CharField(max_length=500)


class LoginSerializer(serializers.Serializer):
    # TODO: Implement login functionality
    username = serializers.CharField()
    password = serializers.CharField(style = {'input_type': 'password'},write_only = True, )

    def validate(self, data):
        username = data.get('username')
        password = data.get('password')
        user = authenticate(username = username, password = password)

        if user:
            data['user'] = user
        else:
            raise serializers.ValidationError("Unable to login :( !")
        return data


class RegisterSerializer(serializers.Serializer):
    # TODO: Implement register functionality
    # firstname = serializers.CharField()
    # lastname  = serializers.CharField()
    username  = serializers.CharField(required = True,validators = [UniqueValidator(queryset = User.objects.all())])
    password  = serializers.CharField(style = {'input_type': 'password'}, min_length = 8,write_only = True,required = True)
    name = serializers.CharField(source='first_name', max_length=150)
    email = serializers.EmailField(max_length=255, required = True, allow_blank=False)
    def create(self, validated_data):
        user = User(
            first_name = validated_data['first_name'],
            username = validated_data['username'],
            email = validated_data['email'],
            password = validated_data['password'],
        )
        user.set_password((validated_data['password']))
        user.save()
        return user
    class Meta:
        model = User
        fields = ['name', 'email', 'username', 'password']
        extra_kwargs = {'password':{'write_only':True}}
    

    


class UserSerializer(serializers.ModelSerializer):
    # TODO: Implement the functionality to display user details
    name = serializers.CharField(source='first_name', max_length=150, required=False)
    class Meta:
        model = User
        fields = ('id','username', 'email','name' )