"""
Analytics admin
"""
from django.contrib import admin
from django.utils.html import format_html

from .models import KPI, KPIValue


@admin.register(KPI)
class KPIAdmin(admin.ModelAdmin):
    """KPI admin"""
    list_display = [
        'name', 'category', 'unit', 'target_value',
        'warning_threshold', 'critical_threshold', 'is_active'
    ]
    list_filter = ['category', 'is_active']
    search_fields = ['name', 'name_ar', 'description']
    ordering = ['category', 'name']
    
    fieldsets = (
        (None, {
            'fields': ('name', 'name_ar', 'description', 'category')
        }),
        ('Measurement', {
            'fields': ('unit', 'calculation_method')
        }),
        ('Thresholds', {
            'fields': ('target_value', 'warning_threshold', 'critical_threshold')
        }),
        ('Configuration', {
            'fields': ('is_active',)
        }),
        ('Metadata', {
            'fields': ('created_at', 'updated_at')
        }),
    )
    
    readonly_fields = ['created_at', 'updated_at']


@admin.register(KPIValue)
class KPIValueAdmin(admin.ModelAdmin):
    """KPI value admin"""
    list_display = [
        'kpi', 'hospital', 'department', 'value',
        'status_badge', 'period_type', 'period_end'
    ]
    list_filter = ['status', 'period_type', 'kpi__category', 'hospital', 'period_end']
    search_fields = ['kpi__name']
    ordering = ['-period_end']
    date_hierarchy = 'period_end'
    
    fieldsets = (
        ('KPI', {
            'fields': ('kpi',)
        }),
        ('Scope', {
            'fields': ('hospital', 'department')
        }),
        ('Value', {
            'fields': ('value', 'status')
        }),
        ('Period', {
            'fields': ('period_type', 'period_start', 'period_end')
        }),
        ('Metadata', {
            'fields': ('metadata', 'created_at', 'updated_at'),
            'classes': ('collapse',)
        }),
    )
    
    readonly_fields = ['created_at', 'updated_at']
    
    def get_queryset(self, request):
        qs = super().get_queryset(request)
        return qs.select_related('kpi', 'hospital', 'department')
    
    def status_badge(self, obj):
        """Display status with badge"""
        colors = {
            'on_target': 'success',
            'warning': 'warning',
            'critical': 'danger',
        }
        color = colors.get(obj.status, 'secondary')
        
        return format_html(
            '<span class="badge bg-{}">{}</span>',
            color,
            obj.get_status_display()
        )
    status_badge.short_description = 'Status'