using SharpChat.Events;
using SharpChat.SockChat.PacketsS2C;
using System.Linq;

namespace SharpChat.SockChat.Commands {
    public class ChannelRankCommand : ISockChatClientCommand {
        public bool IsMatch(SockChatClientCommandContext ctx) {
            return ctx.NameEquals("rank")
                || ctx.NameEquals("privilege")
                || ctx.NameEquals("priv");
        }

        public void Dispatch(SockChatClientCommandContext ctx) {
            if(!ctx.User.Permissions.HasFlag(UserPermissions.SetChannelHierarchy) || ctx.Channel.OwnerId != ctx.User.UserId) {
                ctx.Chat.SendTo(ctx.User, new CommandNotAllowedErrorS2CPacket(ctx.Name));
                return;
            }

            if(!ctx.Args.Any() || !int.TryParse(ctx.Args.First(), out int chanMinRank) || chanMinRank > ctx.User.Rank) {
                ctx.Chat.SendTo(ctx.User, new ChannelRankTooHighErrorS2CPacket());
                return;
            }

            ctx.Chat.Events.Dispatch("chan:update", ctx.Channel.Name, ctx.User, new ChannelUpdateEventData(minRank: chanMinRank));
            ctx.Chat.SendTo(ctx.User, new ChannelRankChangedResponseS2CPacket());
        }
    }
}