namespace SeaHaven.Services.Constants
{
    /// <summary>
    /// Canonical, immutable registry of team-members permission keys.
    /// Exactly the 22 approved prototype keys; stored overrides must reference
    /// these keys. Keys are stable identifiers and must never be renamed.
    /// </summary>
    public static class TeamPermissionKeys
    {
        public const string ManageTeamMembers = "manageTeamMembers";
        public const string ChangeTeamMemberRole = "changeTeamMemberRole";
        public const string CreateVendors = "createVendors";
        public const string EditVendors = "editVendors";
        public const string DeactivateVendors = "deactivateVendors";
        public const string CreateSites = "createSites";
        public const string EditSites = "editSites";
        public const string DeleteSites = "deleteSites";
        public const string CreateServices = "createServices";
        public const string EditServices = "editServices";
        public const string DeactivateServices = "deactivateServices";
        public const string CreateCompletionDocTemplates = "createCompletionDocTemplates";
        public const string EditCompletionDocTemplates = "editCompletionDocTemplates";
        public const string DeleteCompletionDocTemplates = "deleteCompletionDocTemplates";
        public const string CreateWorkOrders = "createWorkOrders";
        public const string EditOthersWorkOrders = "editOthersWorkOrders";
        public const string CancelWorkOrders = "cancelWorkOrders";
        public const string DeleteWorkOrders = "deleteWorkOrders";
        public const string RequestUplifts = "requestUplifts";
        public const string AutoApproveUplifts = "autoApproveUplifts";
        public const string ReviewUplifts = "reviewUplifts";
        public const string ViewAllDispatchersOnDashboard = "viewAllDispatchersOnDashboard";

        private static readonly IReadOnlyList<string> AllKeys = Array.AsReadOnly(new[]
        {
            ManageTeamMembers,
            ChangeTeamMemberRole,
            CreateVendors,
            EditVendors,
            DeactivateVendors,
            CreateSites,
            EditSites,
            DeleteSites,
            CreateServices,
            EditServices,
            DeactivateServices,
            CreateCompletionDocTemplates,
            EditCompletionDocTemplates,
            DeleteCompletionDocTemplates,
            CreateWorkOrders,
            EditOthersWorkOrders,
            CancelWorkOrders,
            DeleteWorkOrders,
            RequestUplifts,
            AutoApproveUplifts,
            ReviewUplifts,
            ViewAllDispatchersOnDashboard
        });

        public static IReadOnlyList<string> All => AllKeys;

        public static IReadOnlySet<string> KnownKeys { get; } =
            new HashSet<string>(AllKeys, StringComparer.OrdinalIgnoreCase);

        public static bool IsKnown(string? permissionKey) =>
            !string.IsNullOrWhiteSpace(permissionKey) && KnownKeys.Contains(permissionKey);
    }
}