OnMissionAssigned

using System;
using System.Collections.Generic;
using Newtonsoft.Json;
using Oxide.Core;
using UnityEngine;

namespace Oxide.Plugins
{
    [Info("Mission Assignment Notifier", "RustPluginGenerator", "1.0.0")]
    [Description("Announces and logs mission assignments made by mission providers")]
    public class MissionAssignmentNotifier : RustPlugin
    {
        private const string PermUse = "missionassignmentnotifier.use";

        private PluginConfig config;

        private class PluginConfig
        {
            [JsonProperty("Broadcast to all players")]
            public bool Broadcast { get; set; } = true;

            [JsonProperty("Log assignments to server console")]
            public bool LogToConsole { get; set; } = true;
        }

        protected override void LoadDefaultConfig() => config = new PluginConfig();

        protected override void LoadConfig()
        {
            base.LoadConfig();
            try
            {
                config = Config.ReadObject<PluginConfig>();
                if (config == null) throw new Exception();
            }
            catch
            {
                PrintWarning("Configuration file is invalid, using defaults");
                LoadDefaultConfig();
            }
            SaveConfig();
        }

        protected override void SaveConfig() => Config.WriteObject(config);

        protected override void LoadDefaultMessages()
        {
            lang.RegisterMessages(new Dictionary<string, string>
            {
                ["Broadcast"] = "{0} was assigned the mission: {1}",
                ["Private"] = "You received a new mission: {0}",
                ["Unknown"] = "Unknown Mission"
            }, this);
        }

        private void Init()
        {
            permission.RegisterPermission(PermUse, this);
        }

        private string Msg(string key, string userId = null, params object[] args)
            => string.Format(lang.GetMessage(key, this, userId), args);

        private void OnMissionAssigned(BaseMission mission, IMissionProvider provider, BasePlayer assignee)
        {
            if (assignee == null || assignee.IsNpc || !assignee.IsConnected)
                return;

            var missionName = mission != null && !string.IsNullOrEmpty(mission.name)
                ? mission.name
                : Msg("Unknown", assignee.UserIDString);

            if (config.LogToConsole)
            {
                var providerName = provider != null ? provider.GetType().Name : "unknown provider";
                Debug.Log($"[MissionAssignmentNotifier] {assignee.displayName} ({assignee.UserIDString}) received '{missionName}' from {providerName}");
            }

            assignee.ChatMessage(Msg("Private", assignee.UserIDString, missionName));

            if (!config.Broadcast)
                return;

            Server.Broadcast(string.Format(lang.GetMessage("Broadcast", this), assignee.displayName, missionName));
        }
    }
}