import Navbar from "../components/Navbar.jsx";
import {useEffect, useState} from "react";
import PlaylistCard from "../components/PlaylistCard.jsx";
import VideoCard from "../components/VideoCard.jsx";
import {useNavigate} from "react-router-dom";


export default function Account() {

    let user = JSON.parse(localStorage.getItem("user")) || {};
    let token = localStorage.getItem("token") || "";

    const [username, setUsername] = useState(user.username || "");
    const [email, setEmail] = useState(user.email || "");
    const [password, setPassword] = useState("");
    const [confirmPassword, setConfirmPassword] = useState("");
    const [isPictureEditActive, setIsPictureEditActive] = useState(false);
    const [userHistory, setUserHistory] = useState([]);
    const [userPlaylists, setUserPlaylists] = useState([]);
    const [userChannel, setUserChannel] = useState(null);

    const navigation = useNavigate();

    const fetchUserChannel = async () => {
        try {
            const response = await fetch(`/api/users/${user.id}/channel`, {
                method: "GET",
                headers: {
                    "Authorization": `Bearer ${token}`,
                }
            });
            if (!response.ok) {
                throw new Error("Failed to fetch user data");
            }
            const data = await response.json();
            setUserChannel(data);
        } catch (error) {
            console.error("Error fetching user channel:", error);
            return null;
        }
    }
    const fetchUserHistory = async () => {
        if (!user.id || !token) {
            console.warn("User ID or token missing, skipping history fetch");
            return;
        }
        try {
            const response = await fetch(`/api/users/${user.id}/history`, {
                method: "GET",
                headers: {
                    "Authorization": `Bearer ${token}`,
                }
            });
            if (!response.ok) {
                throw new Error("Failed to fetch user history");
            }
            const data = await response.json();
            setUserHistory(data);
        } catch (error) {
            console.error("Error fetching user history:", error);
        }
    }
    const fetchUserPlaylists = async () => {
        if (!user.id || !token) {
            console.warn("User ID or token missing, skipping playlists fetch");
            return;
        }
        try {
            const response = await fetch(`/api/playlists/user/${user.id}`, {
                method: "GET",
                headers: {
                    "Authorization": `Bearer ${token}`,
                }
            });
            if (!response.ok) {
                throw new Error("Failed to fetch user playlists");
            }
            const data = await response.json();
            setUserPlaylists(data);
        } catch (error) {
            console.error("Error fetching user playlists:", error);
        }
    }

    useEffect(() => {
        fetchUserChannel();
        fetchUserHistory();
        fetchUserPlaylists();
    }, []);


    const [editMode, setEditMode] = useState(false);

    const nonEditModeClasses = "text-2xl font-bold text-white p-2 focus:text-white focus:outline-none w-full font-montserrat";
    const editModeClasses = nonEditModeClasses + " glassmorphism";

    const handlePlaylistClick = (playlistId) => {
        navigation(`/playlist/${playlistId}`);
    }

    const handleUpdateUser = async () => {
        if (password !== confirmPassword) {
            alert("Les mots de passe ne correspondent pas.");
            return;
        }

        const updatedUser = {
            username,
            email,
            password: password || undefined, // Only send password if it's not empty
        };

        try {
            const response = await fetch(`/api/users/${user.id}`, {
                method: "PUT",
                headers: {
                    "Content-Type": "application/json",
                    "Authorization": `Bearer ${token}`,
                },
                body: JSON.stringify(updatedUser),
            });

            if (!response.ok) {
                throw new Error("Failed to update user");
            }

            const data = await response.json();
            localStorage.setItem("user", JSON.stringify(data.user));
            setEditMode(false);
            alert("Profil mis à jour avec succès !");
        } catch (error) {
            console.error("Error updating user:", error);
            alert("Erreur lors de la mise à jour du profil.");
        }
    }

    return (
        <div className="min-w-screen min-h-screen  bg-linear-to-br from-left-gradient to-right-gradient">
            <Navbar/>

            <main className="px-36 pt-[118px] flex justify-between items-start">
                {/* Left side */}

                    {/* Profile / Edit profile */}
                    <form className="glassmorphism  w-1/3 p-10">
                        <div className="relative w-1/3 aspect-square overflow-hidden mb-3 mx-auto" onMouseEnter={() => setIsPictureEditActive(true)} onMouseLeave={() => setIsPictureEditActive(false)} >
                            <label htmlFor="image">
                                <img
                                    src={user.picture}
                                    className="w-full aspect-square rounded-full object-cover"
                                />
                                <div className={`absolute w-full h-full bg-[#000000EF] flex items-center justify-center top-0 left-0 rounded-full ${(isPictureEditActive && editMode) ? "opacity-100 cursor-pointer" : "opacity-0 cursor-default"} ` } >
                                    <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" className="fill-white" viewBox="0 0 24 24">
                                        <path d="M19.045 7.401c.378-.378.586-.88.586-1.414s-.208-1.036-.586-1.414l-1.586-1.586c-.378-.378-.88-.586-1.414-.586s-1.036.208-1.413.585L4 13.585V18h4.413L19.045 7.401zm-3-3 1.587 1.585-1.59 1.584-1.586-1.585 1.589-1.584zM6 16v-1.585l7.04-7.018 1.586 1.586L7.587 16H6zm-2 4h16v2H4z"></path>
                                    </svg>
                                </div>
                            </label>
                            <input type="file" accept="image/*" id="image" className="absolute inset-0 w-full h-full opacity-0 cursor-pointer" disabled={!editMode}/>
                        </div>
                        <label htmlFor="name" className="text-2xl text-white mb-1 block font-montserrat">
                        Nom d'utilisateur
                        </label>
                        <input
                            type="text"
                            id="name"
                            value={username}
                            className={(editMode ? editModeClasses : nonEditModeClasses)}
                            onChange={(e) => setUsername(e.target.value)}
                            placeholder="Nom d'utilisateur"
                            disabled={!editMode}
                        />

                        <label htmlFor="email" className="text-2xl text-white mb-1 mt-4 block font-montserrat">
                            Adresse e-mail
                        </label>
                        <input
                            type="email"
                            id="email"
                            value={email}
                            className={(editMode ? editModeClasses : nonEditModeClasses)}
                            onChange={(e) => setEmail(e.target.value)}
                            placeholder="Adresse mail"
                            disabled={!editMode}
                        />

                        { editMode && (
                            <>
                                <label htmlFor="password" className="text-2xl text-white mb-1 mt-4 block font-montserrat">
                                    Mot de passe
                                </label>
                                <input
                                    type="password"
                                    id="password"
                                    value={password}
                                    className={(editMode ? editModeClasses : nonEditModeClasses)}
                                    onChange={(e) => setPassword(e.target.value)}
                                    placeholder="**************"
                                    disabled={!editMode}
                                />

                                <label htmlFor="confirm-password" className="text-2xl text-white mb-1 mt-4 block font-montserrat">
                                    Confirmer le mot de passe
                                </label>
                                <input
                                    type="password"
                                    id="confirm-password"
                                    value={confirmPassword}
                                    className={(editMode ? editModeClasses : nonEditModeClasses)}
                                    onChange={(e) => setConfirmPassword(e.target.value)}
                                    placeholder=""
                                    disabled={!editMode}
                                />
                            </>
                        )

                        }

                        <div className="flex justify-center mt-5">
                            {
                                editMode ? (
                                    <div>
                                        <button
                                            type="button"
                                            className="bg-primary p-3 rounded-sm text-white font-montserrat text-2xl font-black cursor-pointer"
                                            onClick={handleUpdateUser}
                                        >
                                            Enregistrer
                                        </button>
                                        <button
                                            type="button"
                                            className="bg-red-500 p-3 rounded-sm text-white font-montserrat text-2xl font-black cursor-pointer ml-3"
                                            onClick={() => setEditMode(!editMode)}
                                        >
                                            Annuler
                                        </button>
                                    </div>
                                ) : (
                                    <button
                                        type="button"
                                        className="bg-primary p-3 rounded-sm text-white font-montserrat text-2xl font-black cursor-pointer"
                                        onClick={() => setEditMode(!editMode)}
                                    >
                                        Modifier le profil
                                    </button>
                                )
                            }
                        </div>
                    </form>

                { /* Right side */}

                    <div className="w-2/3 flex flex-col items-start pl-10">
                        {/* Channel */}
                        {userChannel ? (
                            <div className="glassmorphism p-10 w-full flex justify-between">
                                <p className="text-3xl text-white mb-2 font-montserrat font-bold">{userChannel.channel.name}</p>
                                <button>
                                    <span onClick={() => navigation(`/manage-channel/${userChannel.channel.id}`)} className="bg-primary p-3 rounded-sm text-white font-montserrat text-2xl font-semibold cursor-pointer">
                                        Gérer la chaîne
                                    </span>
                                </button>
                            </div>
                        ) : (
                            <div className="glassmorphism p-10 w-full">
                                <h2 className="text-3xl font-bold text-white mb-4">Chaîne</h2>
                                <p className="text-xl text-white mb-2">Aucune chaîne associée à ce compte.</p>
                                <button className=" mt-4">
                                    <a href="/create-channel" className="bg-primary p-3 rounded-sm text-white font-montserrat text-2xl font-semibold cursor-pointer">
                                        Créer une chaîne
                                    </a>
                                </button>
                            </div>
                        )}
                        {/* Playlists */}
                        <h2 className="font-montserrat font-bold text-3xl text-white mt-10" >Playlists</h2>
                        <div className="w-full mt-5 flex flex-wrap" >
                            {
                                userPlaylists.map((playlist, index) => (
                                    <PlaylistCard playlist={playlist} key={index} onClick={handlePlaylistClick} />
                                ))
                            }
                        </div>
                        {/* History */}
                        <h2 className="font-montserrat font-bold text-3xl text-white mt-10" >Historique</h2>
                        <div className="w-full mt-5 flex flex-wrap gap-2" >
                            {
                                userHistory.map((video, index) => (
                                    <div className="w-1/3" key={index}>
                                        <VideoCard video={video}/>
                                    </div>
                                ))
                            }
                        </div>
                    </div>

            </main>

        </div>
    )

}