const { PermissionFlagsBits } = require('discord.js');
const { createEmbed } = require('../utils/embeds');
const { Colors } = require('../config');

/**
 * Temporary command: creates a Co-Owner role with limited management permissions.
 * - Can manage server (channels, emojis, stickers, server settings)
 * - Can manage roles (below their own)
 * - Can manage nicknames
 * - Can view audit log
 * - Can manage messages (moderate)
 * - Can mute/deafen/move members in VC
 * - CANNOT ban or kick members
 * - CANNOT send messages in most channels (no SendMessages)
 * - CANNOT use Administrator
 * - Position: directly below the Owner role
 *
 * After creation, adds a permission override to the announcements channel
 * so Co-Owner CAN send messages there.
 *
 * Usage: coownerrole
 */
module.exports = {
    async execute(client, message) {
        const guild = client.guilds.cache.first();
        if (!guild) return message.reply({ content: '❌ No guild found.' });

        const statusMsg = await message.reply({
            embeds: [createEmbed({
                title: '🔧 Creating Co-Owner Role',
                description: 'Setting up limited management role...',
                color: Colors.INFO
            })]
        });

        try {
            // Check if role already exists
            const existing = guild.roles.cache.find(r => r.name === '👑 Co-Owner');
            if (existing) {
                return statusMsg.edit({
                    embeds: [createEmbed({
                        title: '⚠️ Role Already Exists',
                        description: `The role ${existing} already exists. Delete it manually first if you want to recreate it.`,
                        color: Colors.WARNING
                    })]
                });
            }

            // Find the Owner role to position Co-Owner below it
            const ownerRole = guild.roles.cache.find(r => r.name === '@@ Owner');
            const position = ownerRole ? ownerRole.position - 1 : guild.roles.cache.size - 2;

            // Create the Co-Owner role with limited permissions
            const coOwnerRole = await guild.roles.create({
                name: '👑 Co-Owner',
                color: '#e74c3c',
                hoist: true,
                mentionable: false,
                permissions: [
                    // Server management
                    PermissionFlagsBits.ManageGuild,          // Server settings, emojis, stickers
                    PermissionFlagsBits.ManageChannels,       // Create/edit/delete channels
                    PermissionFlagsBits.ManageEmojisAndStickers, // Custom emojis & stickers
                    PermissionFlagsBits.ManageWebhooks,       // Webhooks

                    // Moderation (no ban/kick)
                    PermissionFlagsBits.ManageMessages,       // Delete/pin messages
                    PermissionFlagsBits.ManageNicknames,      // Change other's nicknames
                    PermissionFlagsBits.ManageEvents,         // Server events

                    // Voice
                    PermissionFlagsBits.MuteMembers,          // Mute in VC
                    PermissionFlagsBits.DeafenMembers,        // Deafen in VC
                    PermissionFlagsBits.MoveMembers,          // Move between VCs

                    // Chat & view
                    PermissionFlagsBits.ViewChannel,          // See channels
                    PermissionFlagsBits.SendMessages,         // Send messages everywhere
                    PermissionFlagsBits.EmbedLinks,           // Embed links
                    PermissionFlagsBits.AttachFiles,          // Attach files
                    PermissionFlagsBits.AddReactions,         // Add reactions
                    PermissionFlagsBits.UseExternalEmojis,    // External emojis
                    PermissionFlagsBits.ViewAuditLog,         // Audit log access
                    PermissionFlagsBits.ReadMessageHistory,   // Read history

                    // Voice join
                    PermissionFlagsBits.Connect,              // Join VCs
                    PermissionFlagsBits.Speak,                // Speak in VCs

                    // NOTE: No ManageRoles, no BanMembers, no KickMembers, no Administrator
                ],
                reason: 'Co-Owner role created via coownerrole command'
            });

            // Position the role below Owner
            await coOwnerRole.setPosition(position).catch(() => { });

            // Find announcements channel and add SendMessages override
            const announcementChannel = guild.channels.cache.find(
                c => c.name.toLowerCase().includes('announcement') || c.name.toLowerCase().includes('📢')
            );

            let announcementNote = '';

            // Block Co-Owner from ALL ticket channels/categories
            const ticketChannels = guild.channels.cache.filter(
                c => c.name.toLowerCase().includes('ticket') || 
                     c.name.toLowerCase().includes('🎫')
            );

            let ticketCount = 0;
            for (const [, ch] of ticketChannels) {
                await ch.permissionOverwrites.edit(coOwnerRole, {
                    ViewChannel: false,
                    SendMessages: false,
                }).catch(() => { });
                ticketCount++;
            }

            if (ticketCount > 0) {
                announcementNote += `\n🔒 **Blocked from ${ticketCount} ticket channel(s)**`;
            }

            await statusMsg.edit({
                embeds: [createEmbed({
                    title: '✅ Co-Owner Role Created!',
                    description: [
                        `**Role:** ${coOwnerRole}`,
                        `**Position:** Below Owner`,
                        `**Color:** Red (#e74c3c)`,
                        '',
                        '**✅ CAN:**',
                        '> Send messages in all channels',
                        '> Manage server, channels, emojis',
                        '> Manage messages, nicknames, events',
                        '> Mute/deafen/move in voice',
                        '> View audit log',
                        '',
                        '**❌ CANNOT:**',
                        '> Assign/manage roles',
                        '> Ban or kick members',
                        '> Access ticket channels',
                        '> Use Administrator',
                        '> Override Owner permissions',
                        '',
                        announcementNote,
                        '',
                        '> Assign this role to your co-owner manually.',
                    ].join('\n'),
                    color: Colors.SUCCESS
                })]
            });

        } catch (err) {
            console.error('[CoOwnerRole Error]', err);
            await statusMsg.edit({
                embeds: [createEmbed({
                    title: '❌ Failed',
                    description: `Error: ${err.message}`,
                    color: Colors.ACCENT
                })]
            });
        }
    }
};