from django.contrib import admin
from .models import Asset, Category, AssetChangeLog


@admin.register(Category)
class CategoryAdmin(admin.ModelAdmin):
    list_display = ['name', 'description', 'created_at']
    search_fields = ['name']


@admin.register(Asset)
class AssetAdmin(admin.ModelAdmin):
    list_display = ['asset_number', 'name', 'category', 'brand', 'model', 'status', 'location', 'created_at']
    list_filter = ['status', 'category', 'brand']
    search_fields = ['asset_number', 'name', 'serial_number', 'ip_address']
    readonly_fields = ['created_at', 'updated_at']


@admin.register(AssetChangeLog)
class AssetChangeLogAdmin(admin.ModelAdmin):
    list_display = ['asset_number', 'action', 'field_name', 'operator', 'created_at']
    list_filter = ['action']
    search_fields = ['asset_number']
    readonly_fields = ['created_at']