from rest_framework import serializers

from .models import JobApplication, JobUpdate


class JobUpdateSerializer(serializers.ModelSerializer):
    company_name = serializers.CharField(source="job_application.company_name", read_only=True)
    position_title = serializers.CharField(source="job_application.position_title", read_only=True)
    job_id = serializers.IntegerField(source="job_application.id", read_only=True)

    class Meta:
        model = JobUpdate
        fields = [
            "id",
            "job_id",
            "company_name",
            "position_title",
            "from_status",
            "to_status",
            "notes",
            "created_at",
            "metrics",
        ]


class JobApplicationSerializer(serializers.ModelSerializer):
    class Meta:
        model = JobApplication
        fields = [
            "id",
            "company_name",
            "position_title",
            "status",
            "notes",
            "created_at",
            "updated_at",
        ]


class DashboardMetricsSerializer(serializers.Serializer):
    total_applications = serializers.IntegerField()
    status_breakdown = serializers.DictField(child=serializers.IntegerField())
    interviews_count = serializers.IntegerField()
    offers_count = serializers.IntegerField()
    rejection_rate = serializers.FloatField()