"use client";

import { useState } from "react";
import { FaReply, FaTrash, FaEye, FaEyeSlash, FaEdit, FaSave, FaTimes } from "react-icons/fa";

type Reply = {
    id: string;
    text: string;
    timestamp: string;
    username: string;
    hidden?: boolean;
    like_count?: number;
};

type Comment = {
    id: string;
    text: string;
    username: string;
    timestamp: string;
    like_count?: number;
    hidden?: boolean;
    replies?: { data: Reply[] };
};

interface SocialCommentItemProps {
    comment: Comment;
    onReply: (commentId: string, text: string) => void;
    onDelete: (commentId: string, isReply?: boolean, parentId?: string) => void;
    onHide: (commentId: string, currentHiddenStatus: boolean, isReply?: boolean) => void;
    onEdit: (commentId: string, newText: string, isReply: boolean, parentId?: string) => void;
}

const SocialCommentItem = ({ comment, onReply, onDelete, onHide, onEdit }: SocialCommentItemProps) => {
    const [replyText, setReplyText] = useState("");
    const [isReplying, setIsReplying] = useState(false);
    const [isEditing, setIsEditing] = useState(false);
    const [editText, setEditText] = useState(comment.text);

    const handlePostReply = () => {
        if (!replyText.trim()) return;
        onReply(comment.id, replyText);
        setReplyText("");
        setIsReplying(false);
    };

    const handleSaveEdit = () => {
        if (!editText.trim()) return;
        onEdit(comment.id, editText, false, undefined);
        setIsEditing(false);
    };

    return (
        <div className="bg-[#242424] backdrop-blur-lg border border-white/10 p-4 rounded-xl mb-4 shadow text-sm">
            {/* TOP LEVEL COMMENT */}
            <div className="flex justify-between items-start">
                <div className="flex-1">
                    <div className="flex items-center gap-2 mb-1">
                        <span className="font-bold text-white text-base">{comment.username}</span>
                        <span className="text-xs text-gray-500">{new Date(comment.timestamp).toLocaleString()}</span>
                        {comment.hidden && (
                            <span className="text-xs bg-red-500/20 text-red-400 px-2 py-0.5 rounded-full border border-red-500/20">
                                Hidden
                            </span>
                        )}
                    </div>

                    {isEditing ? (
                        <div className="mt-2">
                            <textarea
                                className="w-full bg-[#111111] border border-white/20 rounded p-2 text-gray-200 focus:outline-none focus:border-purple-500"
                                value={editText}
                                onChange={(e) => setEditText(e.target.value)}
                            />
                            <div className="flex gap-2 mt-2">
                                <button onClick={handleSaveEdit} className="flex items-center gap-1 px-3 py-1 bg-green-600 rounded text-white text-xs hover:bg-green-700">
                                    <FaSave /> Save
                                </button>
                                <button onClick={() => setIsEditing(false)} className="flex items-center gap-1 px-3 py-1 bg-gray-600 rounded text-white text-xs hover:bg-gray-700">
                                    <FaTimes /> Cancel
                                </button>
                            </div>
                        </div>
                    ) : (
                        <p className="text-gray-300 leading-relaxed text-base">{comment.text}</p>
                    )}
                </div>
            </div>

            {/* ACTIONS BAR */}
            <div className="flex items-center gap-4 mt-3 pt-2 border-t border-white/5">
                <button
                    onClick={() => setIsReplying(!isReplying)}
                    className="flex items-center gap-1.5 text-indigo-400 hover:text-indigo-300 transition-colors text-xs font-medium uppercase tracking-wide"
                >
                    <FaReply /> Reply
                </button>
                <button
                    onClick={() => setIsEditing(!isEditing)}
                    className="flex items-center gap-1.5 text-blue-400 hover:text-blue-300 transition-colors text-xs font-medium uppercase tracking-wide"
                >
                    <FaEdit /> Edit
                </button>
                <button
                    onClick={() => onHide(comment.id, !!comment.hidden, false)}
                    className="flex items-center gap-1.5 text-yellow-500 hover:text-yellow-400 transition-colors text-xs font-medium uppercase tracking-wide"
                >
                    {comment.hidden ? <FaEye /> : <FaEyeSlash />} {comment.hidden ? "Unhide" : "Hide"}
                </button>
                <button
                    onClick={() => onDelete(comment.id, false)}
                    className="flex items-center gap-1.5 text-red-500 hover:text-red-400 transition-colors text-xs font-medium uppercase tracking-wide"
                >
                    <FaTrash /> Delete
                </button>
            </div>

            {/* REPLY INPUT AREA */}
            {isReplying && (
                <div className="mt-3 flex gap-2 animate-fadeIn">
                    <input
                        type="text"
                        placeholder={`Reply to ${comment.username}...`}
                        value={replyText}
                        onChange={(e) => setReplyText(e.target.value)}
                        className="flex-1 bg-[#111111] border border-white/10 rounded-lg px-3 py-2 text-white focus:outline-none focus:border-indigo-500"
                    />
                    <button
                        onClick={handlePostReply}
                        className="px-4 py-2 bg-indigo-600 hover:bg-indigo-700 text-white rounded-lg font-medium transition-colors"
                    >
                        Send
                    </button>
                </div>
            )}

            {/* REPLIES LIST */}
            {comment.replies?.data && comment.replies.data.length > 0 && (
                <div className="mt-4 pl-4 border-l-2 border-white/10 space-y-4">
                    {comment.replies.data.map((reply) => (
                        <ReplyItem
                            key={reply.id}
                            reply={reply}
                            parentId={comment.id}
                            onDelete={onDelete}
                            onHide={onHide}
                            onEdit={onEdit}
                        />
                    ))}
                </div>
            )}
        </div>
    );
};

const ReplyItem = ({
    reply,
    parentId,
    onDelete,
    onHide,
    onEdit
}: {
    reply: Reply;
    parentId: string;
    onDelete: (id: string, isReply: boolean, parentId?: string) => void; // parentId needed to update state optimistically? Maybe not for DB but for state.
    onHide: (id: string, currentStatus: boolean, isReply: boolean) => void;
    onEdit: (id: string, text: string, isReply: boolean, parentId: string) => void;
}) => {
    const [isEditing, setIsEditing] = useState(false);
    const [editText, setEditText] = useState(reply.text);

    const handleSaveEdit = () => {
        if (!editText.trim()) return;
        onEdit(reply.id, editText, true, parentId);
        setIsEditing(false);
    };

    return (
        <div className="bg-[#1a1a1a] p-3 rounded-lg border border-white/5 relative group">
            <div className="flex items-center gap-2 mb-1">
                <span className="font-bold text-white text-sm">{reply.username}</span>
                <span className="text-xs text-gray-500">{new Date(reply.timestamp).toLocaleString()}</span>
                {reply.hidden && (
                    <span className="text-xs bg-red-500/20 text-red-400 px-1.5 rounded border border-red-500/20">Hidden</span>
                )}
            </div>

            {isEditing ? (
                <div className="mt-1">
                    <textarea
                        className="w-full bg-[#0a0a0a] border border-white/20 rounded p-2 text-gray-200 text-sm focus:outline-none focus:border-purple-500"
                        value={editText}
                        onChange={(e) => setEditText(e.target.value)}
                    />
                    <div className="flex gap-2 mt-2">
                        <button onClick={handleSaveEdit} className="text-xs px-2 py-1 bg-green-600 rounded text-white cursor-pointer">Save</button>
                        <button onClick={() => setIsEditing(false)} className="text-xs px-2 py-1 bg-gray-600 rounded text-white cursor-pointer">Cancel</button>
                    </div>
                </div>
            ) : (
                <p className="text-gray-400 text-sm">{reply.text}</p>
            )}

            {/* ACTION BUTTONS FOR REPLY */}
            <div className="flex gap-3 mt-2 opacity-60 group-hover:opacity-100 transition-opacity">
                <button
                    onClick={() => setIsEditing(!isEditing)}
                    className="flex items-center gap-1 text-[10px] uppercase font-bold text-blue-400 hover:text-blue-300"
                >
                    <FaEdit /> Edit
                </button>
                <button
                    onClick={() => onHide(reply.id, !!reply.hidden, true)}
                    className="flex items-center gap-1 text-[10px] uppercase font-bold text-yellow-500 hover:text-yellow-400"
                >
                    {reply.hidden ? <FaEye /> : <FaEyeSlash />} {reply.hidden ? "Unhide" : "Hide"}
                </button>
                <button
                    onClick={() => onDelete(reply.id, true, parentId)}
                    className="flex items-center gap-1 text-[10px] uppercase font-bold text-red-500 hover:text-red-400"
                >
                    <FaTrash /> Delete
                </button>
            </div>
        </div>
    );
};

export default SocialCommentItem;