/**
 * @file Edit profile modal component for updating player profile settings.
 * @copyright nhcarrigan
 * @license Naomi's Public License
 * @author Naomi Carrigan
 */
/* eslint-disable max-lines-per-function -- Complex form with many fields */
/* eslint-disable complexity -- Many conditional render paths for toggles */
/* eslint-disable max-lines -- Large modal with profile and settings forms */
/* eslint-disable max-statements -- Many state initialisations and handlers */
import {
  DEFAULT_PROFILE_SETTINGS,
  type NumberFormat,
  type ProfileSettings,
} from "@elysium/types";
import { type ChangeEvent, type JSX, useEffect, useState } from "react";
import { updateProfile } from "../../api/client.js";
import { useGame } from "../../context/gameContext.js";
import {
  requestNotificationPermission,
} from "../../utils/notification.js";

interface EditProfileModalProperties {
  readonly onClose: ()=> void;
}

interface StatToggle {
  key:   keyof ProfileSettings;
  label: string;
  icon:  string;
}

const currentRunToggles: Array<StatToggle> = [
  { icon: "🪙", key: "showCurrentGold", label: "Gold Earned This Run" },
  { icon: "👆", key: "showCurrentClicks", label: "Clicks This Run" },
  { icon: "✨", key: "showApotheosis", label: "Apotheosis Badge" },
  { icon: "🌌", key: "showTranscendence", label: "Transcendence Badge" },
  { icon: "⭐", key: "showPrestige", label: "Prestige Level" },
  { icon: "💀", key: "showBossesDefeated", label: "Bosses Defeated" },
  { icon: "📜", key: "showQuestsCompleted", label: "Quests Completed" },
  {
    icon:  "⚔️",
    key:   "showAdventurersRecruited",
    label: "Adventurers Recruited",
  },
  {
    icon:  "🏆",
    key:   "showAchievementsUnlocked",
    label: "Achievements Unlocked",
  },
];

const allTimeToggles: Array<StatToggle> = [
  { icon: "🪙", key: "showTotalGold", label: "Total Gold Earned" },
  { icon: "👆", key: "showTotalClicks", label: "Total Clicks" },
  {
    icon:  "💀",
    key:   "showLifetimeBossesDefeated",
    label: "Bosses Defeated",
  },
  {
    icon:  "📜",
    key:   "showLifetimeQuestsCompleted",
    label: "Quests Completed",
  },
  {
    icon:  "⚔️",
    key:   "showLifetimeAdventurersRecruited",
    label: "Adventurers Recruited",
  },
  {
    icon:  "🏆",
    key:   "showLifetimeAchievementsUnlocked",
    label: "Achievements Unlocked",
  },
  { icon: "📅", key: "showGuildFounded", label: "Guild Founded Date" },
];

const numberFormatOptions: Array<{
  value:   NumberFormat;
  label:   string;
  example: string;
}> = [
  { example: "1.23Qa", label: "Suffix", value: "suffix" },
  { example: "1.23e15", label: "Scientific", value: "scientific" },
  { example: "1.23E15", label: "Engineering", value: "engineering" },
];

/**
 * Renders the edit profile modal for updating player display settings.
 * @param props - The modal properties.
 * @param props.onClose - Callback to close the modal.
 * @returns The JSX element.
 */
const EditProfileModal = ({
  onClose,
}: EditProfileModalProperties): JSX.Element => {
  const {
    state,
    numberFormat: currentNumberFormat,
    setNumberFormat,
    setEnableSounds,
    setEnableNotifications,
  } = useGame();
  const player = state?.player;

  const [ characterName, setCharacterName ] = useState(
    player?.characterName ?? "",
  );
  const [ bio, setBio ] = useState("");
  const [ profileSettings, setProfileSettings ] = useState<ProfileSettings>({
    ...DEFAULT_PROFILE_SETTINGS,
    numberFormat: currentNumberFormat,
  });
  const [ loadingProfile, setLoadingProfile ] = useState(true);
  const [ saving, setSaving ] = useState(false);
  const [ error, setError ] = useState<string | null>(null);
  const [ saved, setSaved ] = useState(false);

  useEffect(() => {
    if (player?.discordId === undefined || player.discordId === "") {
      return;
    }
    fetch(`/api/profile/${player.discordId}`).
      then(async(response) => {
        if (!response.ok) {
          return;
        }
        // eslint-disable-next-line @typescript-eslint/consistent-type-assertions -- API response cast
        const data = (await response.json()) as {
          bio:             string;
          profileSettings: ProfileSettings;
          characterName:   string;
        };
        setBio(data.bio);
        setProfileSettings({
          ...DEFAULT_PROFILE_SETTINGS,
          ...data.profileSettings,
        });
        setCharacterName(
          data.characterName === ""
            ? player.characterName
            : data.characterName,
        );
      }).
      catch(() => {

        /* Fall back to local state if fetch fails — not a blocking error */
      }).
      finally(() => {
        setLoadingProfile(false);
      });
  }, [ player?.discordId, player?.characterName ]);

  async function handleSave(): Promise<void> {
    setSaving(true);
    setError(null);
    try {
      await updateProfile({
        bio,
        characterName,
        profileSettings,
      });
      setNumberFormat(profileSettings.numberFormat);
      setEnableSounds(profileSettings.enableSounds);
      setEnableNotifications(profileSettings.enableNotifications);
      setSaved(true);
      setTimeout(onClose, 900);
    } catch (error_: unknown) {
      setError(error_ instanceof Error
        ? error_.message
        : "Failed to save");
    } finally {
      setSaving(false);
    }
  }

  function handleSaveClick(): void {
    void handleSave();
  }

  function toggleSetting(key: keyof ProfileSettings): void {
    setProfileSettings((previous) => {
      const current = previous[key];
      const toggled = typeof current === "boolean"
        ? !current
        : current;
      return { ...previous, [key]: toggled };
    });
  }

  function handleLeaderboardToggle(): void {
    toggleSetting("showOnLeaderboards");
  }

  function handleNameChange(event: ChangeEvent<HTMLInputElement>): void {
    setCharacterName(event.target.value);
  }

  function handleBioChange(event: ChangeEvent<HTMLTextAreaElement>): void {
    setBio(event.target.value);
  }

  function handleSoundsToggle(): void {
    toggleSetting("enableSounds");
  }

  async function handleNotificationsEnable(): Promise<void> {
    if (profileSettings.enableNotifications) {
      toggleSetting("enableNotifications");
      return;
    }
    const granted = await requestNotificationPermission();
    if (granted) {
      toggleSetting("enableNotifications");
    } else {
      setError(
        "Browser notification permission was denied."
        + " Please enable it in your browser settings.",
      );
    }
  }

  function handleNotificationsToggle(): void {
    void handleNotificationsEnable();
  }

  function handlePrestigeAnnouncementsToggle(): void {
    toggleSetting("enablePrestigeAnnouncements");
  }

  const isSaveDisabled = saving || characterName.trim() === "";

  let saveLabel = "Save Profile";
  if (saving) {
    saveLabel = "Saving…";
  }
  if (saved) {
    saveLabel = "✓ Saved!";
  }

  return (
    <div aria-modal="true" className="modal-overlay" role="dialog">
      <div className="modal edit-profile-modal">
        <div className="modal-header">
          <h2>{"Edit Profile"}</h2>
          <button
            aria-label="Close"
            className="modal-close"
            onClick={onClose}
            type="button"
          >
            {"✕"}
          </button>
        </div>

        {loadingProfile
          ? <p className="edit-profile-loading">{"Loading your profile…"}</p>
          : <div className="edit-profile-form">
            <label className="edit-profile-label" htmlFor="edit-char-name">
              {"Display Name"}
            </label>
            <input
              className="edit-profile-input"
              id="edit-char-name"
              maxLength={32}
              onChange={handleNameChange}
              placeholder="Your character's name"
              type="text"
              value={characterName}
            />
            <span className="edit-profile-hint">
              {characterName.length}
              {" / 32"}
            </span>

            <label className="edit-profile-label" htmlFor="edit-bio">
              {"Bio"}
            </label>
            <textarea
              className="edit-profile-textarea"
              id="edit-bio"
              maxLength={200}
              onChange={handleBioChange}
              placeholder="Tell the world about your guild… (optional)"
              rows={3}
              value={bio}
            />
            <span className="edit-profile-hint">
              {bio.length}
              {" / 200"}
            </span>

            <div className="edit-profile-section">
              <p className="edit-profile-label">{"Visible Stats"}</p>
              <p className="edit-profile-sublabel">
                {"Choose which stats appear on your public profile."}
              </p>

              <p className="edit-profile-stat-group-heading">{"Current Run"}</p>
              <div className="stat-toggles">
                {currentRunToggles.map(({ key, label, icon }) => {
                  const isOn = profileSettings[key] === true;
                  const toggleClass = isOn
                    ? "stat-toggle-on"
                    : "stat-toggle-off";
                  const toggleIndicator = isOn
                    ? "✓ Shown"
                    : "Hidden";
                  function handleToggle(): void {
                    toggleSetting(key);
                  }
                  return (
                    <button
                      className={`stat-toggle-btn ${toggleClass}`}
                      key={key}
                      onClick={handleToggle}
                      type="button"
                    >
                      <span>
                        {icon} {label}
                      </span>
                      <span className="stat-toggle-indicator">
                        {toggleIndicator}
                      </span>
                    </button>
                  );
                })}
              </div>

              <p className="edit-profile-stat-group-heading">{"All Time"}</p>
              <div className="stat-toggles">
                {allTimeToggles.map(({ key, label, icon }) => {
                  const isOn = profileSettings[key] === true;
                  const toggleClass = isOn
                    ? "stat-toggle-on"
                    : "stat-toggle-off";
                  const toggleIndicator = isOn
                    ? "✓ Shown"
                    : "Hidden";
                  function handleToggle(): void {
                    toggleSetting(key);
                  }
                  return (
                    <button
                      className={`stat-toggle-btn ${toggleClass}`}
                      key={key}
                      onClick={handleToggle}
                      type="button"
                    >
                      <span>
                        {icon} {label}
                      </span>
                      <span className="stat-toggle-indicator">
                        {toggleIndicator}
                      </span>
                    </button>
                  );
                })}
              </div>
            </div>

            <div className="edit-profile-section">
              <p className="edit-profile-label">{"Privacy"}</p>
              <p className="edit-profile-sublabel">
                {"Control your visibility on public leaderboards."}
              </p>
              <button
                className={`stat-toggle-btn ${
                  profileSettings.showOnLeaderboards
                    ? "stat-toggle-on"
                    : "stat-toggle-off"
                }`}
                onClick={handleLeaderboardToggle}
                type="button"
              >
                <span>{"🏆 Appear on Leaderboards"}</span>
                <span className="stat-toggle-indicator">
                  {profileSettings.showOnLeaderboards
                    ? "✓ Shown"
                    : "Hidden"}
                </span>
              </button>
            </div>

            <div className="edit-profile-section">
              <p className="edit-profile-label">{"Sounds & Notifications"}</p>
              <p className="edit-profile-sublabel">
                {"Control in-game sound effects and browser notifications."}
              </p>
              <button
                className={`stat-toggle-btn ${
                  profileSettings.enableSounds
                    ? "stat-toggle-on"
                    : "stat-toggle-off"
                }`}
                onClick={handleSoundsToggle}
                type="button"
              >
                <span>{"🔊 Sound Effects"}</span>
                <span className="stat-toggle-indicator">
                  {profileSettings.enableSounds
                    ? "✓ On"
                    : "Off"}
                </span>
              </button>
              <button
                className={`stat-toggle-btn ${
                  profileSettings.enableNotifications
                    ? "stat-toggle-on"
                    : "stat-toggle-off"
                }`}
                onClick={handleNotificationsToggle}
                type="button"
              >
                <span>{"🔔 Browser Notifications"}</span>
                <span className="stat-toggle-indicator">
                  {profileSettings.enableNotifications
                    ? "✓ On"
                    : "Off"
                  }
                </span>
              </button>
              <button
                className={`stat-toggle-btn ${
                  profileSettings.enablePrestigeAnnouncements
                    ? "stat-toggle-on"
                    : "stat-toggle-off"
                }`}
                onClick={handlePrestigeAnnouncementsToggle}
                type="button"
              >
                <span>{"⭐ Prestige Bot Announcements"}</span>
                <span className="stat-toggle-indicator">
                  {profileSettings.enablePrestigeAnnouncements
                    ? "✓ On"
                    : "Off"
                  }
                </span>
              </button>
            </div>

            <div className="edit-profile-section">
              <p className="edit-profile-label">{"Number Format"}</p>
              <p className="edit-profile-sublabel">
                {"How large numbers appear across the game."}
              </p>
              <div className="number-format-picker">
                {numberFormatOptions.map(({ value, label, example }) => {
                  function handleFormatSelect(): void {
                    setProfileSettings((previous) => {
                      return { ...previous, numberFormat: value };
                    });
                  }
                  return (
                    <button
                      className={`number-format-btn ${
                        profileSettings.numberFormat === value
                          ? "number-format-active"
                          : ""
                      }`}
                      key={value}
                      onClick={handleFormatSelect}
                      type="button"
                    >
                      <span className="number-format-label">{label}</span>
                      <span className="number-format-example">{example}</span>
                    </button>
                  );
                })}
              </div>
            </div>

            {error === null
              ? null
              : <p className="edit-profile-error">{error}</p>
            }

            <div className="edit-profile-actions">
              <button
                className="edit-profile-cancel"
                onClick={onClose}
                type="button"
              >
                {"Cancel"}
              </button>
              <button
                className="edit-profile-save"
                disabled={isSaveDisabled}
                onClick={handleSaveClick}
                type="button"
              >
                {saveLabel}
              </button>
            </div>
          </div>
        }
      </div>
    </div>
  );
};

export { EditProfileModal };