using Maki.Rest;
using Maki.Structures.Guilds;
using Maki.Structures.Rest;
using Maki.Structures.Roles;
using System;
using System.Linq;

namespace Maki
{
    public class DiscordServer
    {
        public readonly ulong Id;
        private readonly Discord client;

        public string Name { get; internal set; }
        public ulong OwnerId { get; internal set; }
        internal string IconHash;

        public DiscordMember[] Members => client.members.Where(x => x.Server == this).ToArray();
        public DiscordMember Owner => Members.Where(x => x.User.Id == OwnerId).FirstOrDefault();
        public DiscordMember Me => Members.Where(x => x.User == client.Me).FirstOrDefault();
        public DiscordChannel[] TextChannels => client.channels.Where(x => x.Server == this && x.Type == DiscordChannelType.Text).OrderByDescending(x => x.Position).ToArray();
        public DiscordChannel[] VoiceChannels => client.channels.Where(x => x.Server == this && x.Type == DiscordChannelType.Voice).OrderByDescending(x => x.Position).ToArray();
        public DiscordRole[] Roles => client.roles.Where(x => x.Server == this).OrderByDescending(x => x.Position).ToArray();
        public string Icon(string ext = @"png", int size = 128) => RestEndpoints.CDN_URL + $@"/icons/{Id}/{IconHash}.{ext}?size={size}";

        internal DiscordServer(Discord discord, Guild guild)
        {
            client = discord;
            Id = guild.Id;
            Name = guild.Name;
            OwnerId = guild.OwnerId ?? ulong.MinValue;
            IconHash = guild.IconHash;
        }

        public DiscordRole CreateRole(string name = null, DiscordPermission perms = DiscordPermission.None, DiscordColour colour = null, bool hoist = false, bool mentionable = false)
        {
            RestResponse<Role> roleResp = client.RestClient.Request<Role>(RestRequestMethod.POST, RestEndpoints.GuildRoles(Id), new RoleCreate
            {
                Name = name,
                Perms = perms,
                Colour = colour == null ? 0 : colour.Raw,
                Hoist = hoist,
                Mentionable = mentionable
            });

            if (roleResp.ErrorCode != RestErrorCode.Ok)
                throw new Exception($"{roleResp.ErrorCode}: {roleResp.ErrorMessage}");

            DiscordRole role = client.roles.Where(x => x.Id == roleResp.Response.Id).FirstOrDefault();

            if (role == default(DiscordRole))
            {
                role = new DiscordRole(client, roleResp.Response, this);
                client.roles.Add(role);
            }
            
            return role;
        }
    }
}