"use client";

import { useState, useEffect, useMemo } from "react";
import ImageSelector from "@/components/ImageSelector";

interface SitePreferences {
  id: string;
  homeBackground: string | null;
  eventsBackground: string | null;
  leaderboardBackground: string | null;
}

interface BackgroundPreferencesProps {
  initialPreferences: SitePreferences;
}

const DEFAULT_IMAGES = {
  home: "/got-2.jpg",
  events: "/got-2.jpg",
  leaderboard: "/leaderboard-bg.jpg",
};

export default function BackgroundPreferences({
  initialPreferences,
}: BackgroundPreferencesProps) {
  // Helper pour obtenir la valeur à afficher dans le formulaire
  const getFormValue = (
    dbValue: string | null | undefined,
    defaultImage: string
  ) => {
    return dbValue && dbValue.trim() !== "" ? dbValue : defaultImage;
  };

  // Helper pour obtenir la valeur à envoyer à l'API
  const getApiValue = (formValue: string, defaultImage: string) => {
    return formValue === defaultImage ? "" : formValue;
  };

  const [preferences, setPreferences] = useState<SitePreferences | null>(
    initialPreferences
  );
  const [isEditing, setIsEditing] = useState(false);

  const computedFormData = useMemo(
    () => ({
      homeBackground: getFormValue(
        initialPreferences.homeBackground,
        DEFAULT_IMAGES.home
      ),
      eventsBackground: getFormValue(
        initialPreferences.eventsBackground,
        DEFAULT_IMAGES.events
      ),
      leaderboardBackground: getFormValue(
        initialPreferences.leaderboardBackground,
        DEFAULT_IMAGES.leaderboard
      ),
    }),
    [initialPreferences]
  );

  const [formData, setFormData] = useState(computedFormData);

  // Synchroniser les préférences quand initialPreferences change
  useEffect(() => {
    setPreferences(initialPreferences);
    setFormData(computedFormData);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [initialPreferences]);

  const handleEdit = () => {
    setIsEditing(true);
  };

  const handleSave = async () => {
    try {
      // Convertir les valeurs du formulaire en valeurs API ("" si c'est l'image par défaut)
      const apiData = {
        homeBackground: getApiValue(
          formData.homeBackground,
          DEFAULT_IMAGES.home
        ),
        eventsBackground: getApiValue(
          formData.eventsBackground,
          DEFAULT_IMAGES.events
        ),
        leaderboardBackground: getApiValue(
          formData.leaderboardBackground,
          DEFAULT_IMAGES.leaderboard
        ),
      };

      const response = await fetch("/api/admin/preferences", {
        method: "PUT",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(apiData),
      });

      if (response.ok) {
        const data = await response.json();
        setPreferences(data);
        // Réinitialiser formData avec les nouvelles valeurs (ou images par défaut)
        setFormData({
          homeBackground: getFormValue(
            data.homeBackground,
            DEFAULT_IMAGES.home
          ),
          eventsBackground: getFormValue(
            data.eventsBackground,
            DEFAULT_IMAGES.events
          ),
          leaderboardBackground: getFormValue(
            data.leaderboardBackground,
            DEFAULT_IMAGES.leaderboard
          ),
        });
        setIsEditing(false);
      } else {
        const errorData = await response.json();
        console.error("Error updating preferences:", errorData);
        alert(errorData.error || "Erreur lors de la mise à jour");
      }
    } catch (error) {
      console.error("Error updating preferences:", error);
    }
  };

  const handleCancel = () => {
    setIsEditing(false);
    if (preferences) {
      setFormData({
        homeBackground: getFormValue(
          preferences.homeBackground,
          DEFAULT_IMAGES.home
        ),
        eventsBackground: getFormValue(
          preferences.eventsBackground,
          DEFAULT_IMAGES.events
        ),
        leaderboardBackground: getFormValue(
          preferences.leaderboardBackground,
          DEFAULT_IMAGES.leaderboard
        ),
      });
    }
  };

  return (
    <div className="bg-black/60 border border-pixel-gold/20 rounded p-3 sm:p-4">
      <div className="flex flex-col sm:flex-row sm:justify-between sm:items-start gap-3 mb-4">
        <div className="min-w-0 flex-1">
          <h3 className="text-pixel-gold font-bold text-base sm:text-lg break-words">
            Images de fond du site
          </h3>
          <p className="text-gray-400 text-xs sm:text-sm">
            Ces préférences s&apos;appliquent à tous les utilisateurs
          </p>
        </div>
        {!isEditing && (
          <button
            onClick={handleEdit}
            className="px-3 sm:px-4 py-2 border border-pixel-gold/50 bg-black/60 text-white uppercase text-[10px] sm:text-xs tracking-widest rounded hover:bg-pixel-gold/10 transition whitespace-nowrap flex-shrink-0"
          >
            Modifier
          </button>
        )}
      </div>

      {isEditing ? (
        <div className="space-y-6">
          <ImageSelector
            value={formData.homeBackground}
            onChange={(url) =>
              setFormData({
                ...formData,
                homeBackground: url,
              })
            }
            label="Background Home"
          />
          <ImageSelector
            value={formData.eventsBackground}
            onChange={(url) =>
              setFormData({
                ...formData,
                eventsBackground: url,
              })
            }
            label="Background Events"
          />
          <ImageSelector
            value={formData.leaderboardBackground}
            onChange={(url) =>
              setFormData({
                ...formData,
                leaderboardBackground: url,
              })
            }
            label="Background Leaderboard"
          />
          <div className="flex flex-col sm:flex-row gap-2 pt-4">
            <button
              onClick={handleSave}
              className="px-4 py-2 border border-green-500/50 bg-green-900/20 text-green-400 uppercase text-xs tracking-widest rounded hover:bg-green-900/30 transition"
            >
              Enregistrer
            </button>
            <button
              onClick={handleCancel}
              className="px-4 py-2 border border-gray-600/50 bg-gray-900/20 text-gray-400 uppercase text-xs tracking-widest rounded hover:bg-gray-900/30 transition"
            >
              Annuler
            </button>
          </div>
        </div>
      ) : (
        <div className="space-y-4">
          <div className="flex flex-col sm:flex-row sm:items-center gap-2 sm:gap-4">
            <span className="text-pixel-gold font-bold text-sm sm:text-base min-w-0 sm:min-w-[120px] flex-shrink-0">
              Home:
            </span>
            {(() => {
              const currentImage =
                preferences?.homeBackground &&
                preferences.homeBackground.trim() !== ""
                  ? preferences.homeBackground
                  : DEFAULT_IMAGES.home;
              const isDefault =
                !preferences?.homeBackground ||
                preferences.homeBackground.trim() === "";

              return (
                <div className="flex items-center gap-2 sm:gap-3 min-w-0 flex-1">
                  <div className="relative w-16 h-10 sm:w-20 sm:h-12 rounded border border-pixel-gold/30 overflow-hidden bg-black/60 flex-shrink-0">
                    <img
                      src={currentImage}
                      alt="Home background"
                      className="w-full h-full object-cover"
                      onError={(e) => {
                        const target = e.currentTarget;
                        const currentSrc = target.src;
                        const fallbackSrc = "/got-2.jpg";
                        if (!currentSrc.includes(fallbackSrc)) {
                          target.src = fallbackSrc;
                        } else {
                          target.style.display = "none";
                          const fallbackDiv =
                            target.nextElementSibling as HTMLElement;
                          if (fallbackDiv) {
                            fallbackDiv.classList.remove("hidden");
                          }
                        }
                      }}
                    />
                    <div className="absolute inset-0 flex items-center justify-center bg-black/60 text-gray-500 text-xs hidden">
                      No image
                    </div>
                  </div>
                  <div className="flex flex-col min-w-0 flex-1">
                    <span className="text-xs text-gray-400 truncate min-w-0">
                      {isDefault ? "Par défaut: " : ""}
                      {currentImage}
                    </span>
                    {isDefault && (
                      <span className="text-[10px] text-gray-500 italic">
                        (Image par défaut)
                      </span>
                    )}
                  </div>
                </div>
              );
            })()}
          </div>
          <div className="flex flex-col sm:flex-row sm:items-center gap-2 sm:gap-4">
            <span className="text-pixel-gold font-bold text-sm sm:text-base min-w-0 sm:min-w-[120px] flex-shrink-0">
              Events:
            </span>
            {(() => {
              const currentImage =
                preferences?.eventsBackground &&
                preferences.eventsBackground.trim() !== ""
                  ? preferences.eventsBackground
                  : DEFAULT_IMAGES.events;
              const isDefault =
                !preferences?.eventsBackground ||
                preferences.eventsBackground.trim() === "";

              return (
                <div className="flex items-center gap-2 sm:gap-3 min-w-0 flex-1">
                  <div className="relative w-16 h-10 sm:w-20 sm:h-12 rounded border border-pixel-gold/30 overflow-hidden bg-black/60 flex-shrink-0">
                    <img
                      src={currentImage}
                      alt="Events background"
                      className="w-full h-full object-cover"
                      onError={(e) => {
                        const target = e.currentTarget;
                        const currentSrc = target.src;
                        const fallbackSrc = "/got-2.jpg";
                        if (!currentSrc.includes(fallbackSrc)) {
                          target.src = fallbackSrc;
                        } else {
                          target.style.display = "none";
                          const fallbackDiv =
                            target.nextElementSibling as HTMLElement;
                          if (fallbackDiv) {
                            fallbackDiv.classList.remove("hidden");
                          }
                        }
                      }}
                    />
                    <div className="absolute inset-0 flex items-center justify-center bg-black/60 text-gray-500 text-xs hidden">
                      No image
                    </div>
                  </div>
                  <div className="flex flex-col min-w-0 flex-1">
                    <span className="text-xs text-gray-400 truncate min-w-0">
                      {isDefault ? "Par défaut: " : ""}
                      {currentImage}
                    </span>
                    {isDefault && (
                      <span className="text-[10px] text-gray-500 italic">
                        (Image par défaut)
                      </span>
                    )}
                  </div>
                </div>
              );
            })()}
          </div>
          <div className="flex flex-col sm:flex-row sm:items-center gap-2 sm:gap-4">
            <span className="text-pixel-gold font-bold text-sm sm:text-base min-w-0 sm:min-w-[120px] flex-shrink-0">
              Leaderboard:
            </span>
            {(() => {
              const currentImage =
                preferences?.leaderboardBackground &&
                preferences.leaderboardBackground.trim() !== ""
                  ? preferences.leaderboardBackground
                  : DEFAULT_IMAGES.leaderboard;
              const isDefault =
                !preferences?.leaderboardBackground ||
                preferences.leaderboardBackground.trim() === "";

              return (
                <div className="flex items-center gap-2 sm:gap-3 min-w-0 flex-1">
                  <div className="relative w-16 h-10 sm:w-20 sm:h-12 rounded border border-pixel-gold/30 overflow-hidden bg-black/60 flex-shrink-0">
                    <img
                      src={currentImage}
                      alt="Leaderboard background"
                      className="w-full h-full object-cover"
                      onError={(e) => {
                        const target = e.currentTarget;
                        const currentSrc = target.src;
                        const fallbackSrc = "/got-2.jpg";
                        if (!currentSrc.includes(fallbackSrc)) {
                          target.src = fallbackSrc;
                        } else {
                          target.style.display = "none";
                          const fallbackDiv =
                            target.nextElementSibling as HTMLElement;
                          if (fallbackDiv) {
                            fallbackDiv.classList.remove("hidden");
                          }
                        }
                      }}
                    />
                    <div className="absolute inset-0 flex items-center justify-center bg-black/60 text-gray-500 text-xs hidden">
                      No image
                    </div>
                  </div>
                  <div className="flex flex-col min-w-0 flex-1">
                    <span className="text-xs text-gray-400 truncate min-w-0">
                      {isDefault ? "Par défaut: " : ""}
                      {currentImage}
                    </span>
                    {isDefault && (
                      <span className="text-[10px] text-gray-500 italic">
                        (Image par défaut)
                      </span>
                    )}
                  </div>
                </div>
              );
            })()}
          </div>
        </div>
      )}
    </div>
  );
}