/**
 * Audit API handlers
 */

import type { IApiContext, IApiResponse } from '../router.ts';
import { PermissionService } from '../../services/permission.service.ts';
import { AuditLog } from '../../models/auditlog.ts';
import type { TAuditAction, TAuditResourceType } from '../../interfaces/audit.interfaces.ts';

export class AuditApi {
  private permissionService: PermissionService;

  constructor(permissionService: PermissionService) {
    this.permissionService = permissionService;
  }

  /**
   * GET /api/v1/audit
   */
  public async query(ctx: IApiContext): Promise<IApiResponse> {
    if (!ctx.actor?.userId) {
      return { status: 401, body: { error: 'Authentication required' } };
    }

    try {
      // Parse query parameters
      const organizationId = ctx.url.searchParams.get('organizationId') || undefined;
      const repositoryId = ctx.url.searchParams.get('repositoryId') || undefined;
      const resourceType = ctx.url.searchParams.get('resourceType') as TAuditResourceType | undefined;
      const actionsParam = ctx.url.searchParams.get('actions');
      const actions = actionsParam ? (actionsParam.split(',') as TAuditAction[]) : undefined;
      const success = ctx.url.searchParams.has('success')
        ? ctx.url.searchParams.get('success') === 'true'
        : undefined;
      const startDateParam = ctx.url.searchParams.get('startDate');
      const endDateParam = ctx.url.searchParams.get('endDate');
      const startDate = startDateParam ? new Date(startDateParam) : undefined;
      const endDate = endDateParam ? new Date(endDateParam) : undefined;
      const limit = parseInt(ctx.url.searchParams.get('limit') || '100', 10);
      const offset = parseInt(ctx.url.searchParams.get('offset') || '0', 10);

      // Check permissions
      // Users can view audit logs for:
      // 1. Their own actions (actorId = userId)
      // 2. Organizations they manage
      // 3. System admins can view all

      let actorId: string | undefined;

      if (ctx.actor.user?.isSystemAdmin) {
        // System admins can see all
        actorId = ctx.url.searchParams.get('actorId') || undefined;
      } else if (organizationId) {
        // Check if user can manage this org
        const canManage = await this.permissionService.canManageOrganization(
          ctx.actor.userId,
          organizationId
        );
        if (!canManage) {
          // User can only see their own actions in this org
          actorId = ctx.actor.userId;
        }
      } else {
        // Non-admins without org filter can only see their own actions
        actorId = ctx.actor.userId;
      }

      const result = await AuditLog.query({
        actorId,
        organizationId,
        repositoryId,
        resourceType,
        action: actions,
        success,
        startDate,
        endDate,
        limit,
        offset,
      });

      return {
        status: 200,
        body: {
          logs: result.logs.map((log) => ({
            id: log.id,
            actorId: log.actorId,
            actorType: log.actorType,
            action: log.action,
            resourceType: log.resourceType,
            resourceId: log.resourceId,
            resourceName: log.resourceName,
            organizationId: log.organizationId,
            repositoryId: log.repositoryId,
            success: log.success,
            errorCode: log.errorCode,
            timestamp: log.timestamp,
            metadata: log.metadata,
          })),
          total: result.total,
          limit,
          offset,
        },
      };
    } catch (error) {
      console.error('[AuditApi] Query error:', error);
      return { status: 500, body: { error: 'Failed to query audit logs' } };
    }
  }
}