using Marco.Pms.DataAccess.Data;
using Marco.Pms.Model.Employees;
using Marco.Pms.Model.Entitlements;
using Marco.Pms.Services.Helpers;
using MarcoBMS.Services.Helpers;
using Microsoft.EntityFrameworkCore;

namespace Marco.Pms.Services.Service
{
    public class PermissionServices
    {
        private readonly ApplicationDbContext _context;
        private readonly RolesHelper _rolesHelper;
        private readonly CacheUpdateHelper _cache;
        public PermissionServices(ApplicationDbContext context, RolesHelper rolesHelper, CacheUpdateHelper cache)
        {
            _context = context;
            _rolesHelper = rolesHelper;
            _cache = cache;
        }

        public async Task<bool> HasPermission(Guid featurePermissionId, Guid employeeId)
        {
            var featurePermissionIds = await _cache.GetPermissions(employeeId);
            if (featurePermissionIds == null)
            {
                List<FeaturePermission> featurePermission = await _rolesHelper.GetFeaturePermissionByEmployeeId(employeeId);
                featurePermissionIds = featurePermission.Select(fp => fp.Id).ToList();
            }
            var hasPermission = featurePermissionIds.Contains(featurePermissionId);
            return hasPermission;
        }
        public async Task<bool> HasProjectPermission(Employee LoggedInEmployee, Guid projectId)
        {
            var employeeId = LoggedInEmployee.Id;
            var projectIds = await _cache.GetProjects(employeeId);

            if (projectIds == null)
            {
                var hasPermission = await HasPermission(employeeId, PermissionsMaster.ManageProject);
                if (hasPermission)
                {
                    var projects = await _context.Projects.Where(c => c.TenantId == LoggedInEmployee.TenantId).ToListAsync();
                    projectIds = projects.Select(p => p.Id).ToList();
                }
                else
                {
                    var allocation = await _context.ProjectAllocations.Where(c => c.EmployeeId == employeeId && c.IsActive == true).ToListAsync();
                    if (allocation.Any())
                    {
                        projectIds = allocation.Select(c => c.ProjectId).Distinct().ToList();
                    }
                    return false;
                }
                await _cache.AddProjects(LoggedInEmployee.Id, projectIds);
            }
            return projectIds.Contains(projectId);
        }
    }
}