Umbraco-CMS/src/Umbraco.Core/RuntimeLevelReason.cs

namespace Umbraco.Cms.Core
{
    /// <summary>
    /// Describes the reason for the runtime level.
    /// </summary>
    public enum RuntimeLevelReason
    {
        /// <summary>
        /// The reason is unknown.
        /// </summary>
        Unknown,

        /// <summary>
        /// The code version is lower than the version indicated in web.config, and
        /// downgrading Umbraco is not supported.
        /// </summary>
        BootFailedCannotDowngrade,

        /// <summary>
        /// The runtime cannot connect to the configured database.
        /// </summary>
        BootFailedCannotConnectToDatabase,

        /// <summary>
        /// The runtime can connect to the configured database, but it cannot
        /// retrieve the migrations status.
        /// </summary>
        BootFailedCannotCheckUpgradeState,

        /// <summary>
        /// An exception was thrown during boot.
        /// </summary>
        BootFailedOnException,

        /// <summary>
        /// Umbraco is not installed at all.
        /// </summary>
        InstallNoVersion,

        /// <summary>
        /// A version is specified in web.config but the database is not configured.
        /// </summary>
        /// <remarks>This is a weird state.</remarks>
        InstallNoDatabase,

        /// <summary>
        /// A version is specified in web.config and a database is configured, but the
        /// database is missing, and installing over a missing database has been enabled.
        /// </summary>
        InstallMissingDatabase,

        /// <summary>
        /// A version is specified in web.config and a database is configured, but the
        /// database is empty, and installing over an empty database has been enabled.
        /// </summary>
        InstallEmptyDatabase,

        /// <summary>
        /// Umbraco runs an old version.
        /// </summary>
        UpgradeOldVersion,

        /// <summary>
        /// Umbraco runs the current version but some migrations have not run.
        /// </summary>
        UpgradeMigrations,

        /// <summary>
        /// Umbraco is running.
        /// </summary>
        Run
    }
}