from django.contrib import admin
from django.utils import timezone
from .models import ApiRequestLog, ErrorLog, SystemEventLog


@admin.register(ApiRequestLog)
class ApiRequestLogAdmin(admin.ModelAdmin):
    list_display = [
        'timestamp', 'method', 'path', 'status_code', 'duration_ms',
        'username', 'ip_address', 'app_name', 'is_error',
    ]
    list_filter = ['method', 'status_code', 'app_name', 'is_error', 'timestamp']
    search_fields = ['path', 'username', 'ip_address']
    readonly_fields = [
        'timestamp', 'user', 'username', 'ip_address', 'user_agent',
        'method', 'path', 'query_string', 'request_body', 'status_code',
        'response_size', 'duration_ms', 'app_name', 'is_error',
    ]
    ordering = ['-timestamp']
    date_hierarchy = 'timestamp'

    def has_add_permission(self, request):
        return False

    def has_change_permission(self, request, obj=None):
        return False

    def has_delete_permission(self, request, obj=None):
        return True


@admin.register(ErrorLog)
class ErrorLogAdmin(admin.ModelAdmin):
    list_display = [
        'timestamp', 'level', 'exception_type', 'module', 'message_short',
        'is_resolved', 'occurrence_count',
    ]
    list_filter = ['level', 'is_resolved', 'module', 'timestamp']
    search_fields = ['message', 'exception_type', 'module', 'path']
    readonly_fields = [
        'timestamp', 'level', 'message', 'module', 'function',
        'line_number', 'exception_type', 'traceback', 'user', 'ip_address',
        'path', 'request_data', 'hash_key', 'occurrence_count',
    ]
    ordering = ['-timestamp']
    date_hierarchy = 'timestamp'
    actions = ['mark_as_resolved']

    def message_short(self, obj):
        return obj.message[:100] + '...' if len(obj.message) > 100 else obj.message
    message_short.short_description = '消息'

    @admin.action(description='标记为已处理')
    def mark_as_resolved(self, request, queryset):
        queryset.update(is_resolved=True, resolved_at=timezone.now())

    def has_add_permission(self, request):
        return False


@admin.register(SystemEventLog)
class SystemEventLogAdmin(admin.ModelAdmin):
    list_display = [
        'timestamp', 'event_type', 'user', 'target_user', 'description',
        'result', 'ip_address',
    ]
    list_filter = ['event_type', 'result', 'timestamp']
    search_fields = ['user__username', 'target_user__username', 'description']
    readonly_fields = [
        'timestamp', 'event_type', 'user', 'target_user', 'description',
        'metadata', 'ip_address', 'user_agent', 'result',
    ]
    ordering = ['-timestamp']
    date_hierarchy = 'timestamp'

    def has_add_permission(self, request):
        return False

    def has_change_permission(self, request, obj=None):
        return False