// Copyright (c) Umbraco.
// See LICENSE for more details.

using System.Collections.Generic;
using Microsoft.Extensions.Options;
using Umbraco.Core.Configuration.Models;
using Umbraco.Core.Services;

namespace Umbraco.Core.HealthChecks.Checks.Configuration
{
    /// <summary>
    /// Health check for the recommended production configuration for Notification Email.
    /// </summary>
    [HealthCheck(
        "3E2F7B14-4B41-452B-9A30-E67FBC8E1206",
        "Notification Email Settings",
        Description = "If notifications are used, the 'from' email address should be specified and changed from the default value.",
        Group = "Configuration")]
    public class NotificationEmailCheck : AbstractSettingsCheck
    {
        private readonly IOptionsMonitor<ContentSettings> _contentSettings;
        private const string DefaultFromEmail = "your@email.here";

        /// <summary>
        /// Initializes a new instance of the <see cref="NotificationEmailCheck"/> class.
        /// </summary>
        public NotificationEmailCheck(
            ILocalizedTextService textService,
            IOptionsMonitor<ContentSettings> contentSettings)
            : base(textService) =>
            _contentSettings = contentSettings;

        /// <inheritdoc/>
        public override string ItemPath => Constants.Configuration.ConfigContentNotificationsEmail;

        /// <inheritdoc/>
        public override ValueComparisonType ValueComparisonType => ValueComparisonType.ShouldNotEqual;

        /// <inheritdoc/>
        public override IEnumerable<AcceptableConfiguration> Values => new List<AcceptableConfiguration>
        {
            new AcceptableConfiguration { IsRecommended = false, Value = DefaultFromEmail }
        };

        /// <inheritdoc/>
        public override string CurrentValue => _contentSettings.CurrentValue.Notifications.Email;

        /// <inheritdoc/>
        public override string CheckSuccessMessage => LocalizedTextService.Localize("healthcheck/notificationEmailsCheckSuccessMessage", new[] { CurrentValue });

        /// <inheritdoc/>
        public override string CheckErrorMessage => LocalizedTextService.Localize("healthcheck/notificationEmailsCheckErrorMessage", new[] { DefaultFromEmail });

        /// <inheritdoc/>
        public override string ReadMoreLink => Constants.HealthChecks.DocumentationLinks.Configuration.NotificationEmailCheck;
    }
}