"""
Django admin configuration for referrals app.
"""

from django.contrib import admin
from django.utils.translation import gettext_lazy as _

from .models import (
    Referral,
    ReferralAutoRule,
)


@admin.register(Referral)
class ReferralAdmin(admin.ModelAdmin):
    """Admin interface for Referral model."""
    
    list_display = ['patient', 'from_clinic', 'to_clinic', 'urgency', 'status', 'created_at', 'tenant']
    list_filter = ['urgency', 'status', 'from_clinic', 'to_clinic', 'tenant', 'created_at']
    search_fields = ['patient__mrn', 'patient__first_name_en', 'patient__last_name_en', 
                     'external_provider_name']
    readonly_fields = ['id', 'is_internal', 'is_external', 'is_pending', 'response_time', 
                       'created_at', 'updated_at']
    date_hierarchy = 'created_at'
    
    fieldsets = (
        (_('Patient & Status'), {
            'fields': ('patient', 'tenant', 'status', 'urgency')
        }),
        (_('Source'), {
            'fields': ('from_clinic', 'from_provider')
        }),
        (_('Destination (Internal)'), {
            'fields': ('to_clinic', 'to_provider'),
            'classes': ('collapse',)
        }),
        (_('Destination (External)'), {
            'fields': ('external_provider_name', 'external_provider_contact'),
            'classes': ('collapse',)
        }),
        (_('Referral Details'), {
            'fields': ('reason', 'clinical_summary')
        }),
        (_('Response'), {
            'fields': ('response_notes', 'responded_at'),
            'classes': ('collapse',)
        }),
        (_('Additional Information'), {
            'fields': ('notes', 'completed_at')
        }),
        (_('Metadata'), {
            'fields': ('id', 'is_internal', 'is_external', 'is_pending', 'response_time', 
                      'created_at', 'updated_at'),
            'classes': ('collapse',)
        }),
    )


@admin.register(ReferralAutoRule)
class ReferralAutoRuleAdmin(admin.ModelAdmin):
    """Admin interface for ReferralAutoRule model."""
    
    list_display = ['name', 'trigger_clinic', 'target_clinic', 'urgency', 'auto_create', 
                    'is_active', 'tenant']
    list_filter = ['urgency', 'auto_create', 'is_active', 'trigger_clinic', 'target_clinic', 'tenant']
    search_fields = ['name', 'description', 'target_external_provider']
    readonly_fields = ['id', 'created_at', 'updated_at']
    
    fieldsets = (
        (None, {
            'fields': ('name', 'tenant', 'is_active')
        }),
        (_('Description'), {
            'fields': ('description',)
        }),
        (_('Trigger Conditions'), {
            'fields': ('trigger_clinic', 'trigger_keywords')
        }),
        (_('Target (Internal)'), {
            'fields': ('target_clinic',),
            'classes': ('collapse',)
        }),
        (_('Target (External)'), {
            'fields': ('target_external_provider',),
            'classes': ('collapse',)
        }),
        (_('Rule Configuration'), {
            'fields': ('urgency', 'auto_create')
        }),
        (_('Metadata'), {
            'fields': ('id', 'created_at', 'updated_at'),
            'classes': ('collapse',)
        }),
    )