import { Modal } from "../Modal";
import { Icon } from "../Icon";
import { GameCover } from "../grid/GameCover";
import { StateChip } from "../StateChip";
import { ActionButton } from "../ActionButton";

import { Game, InstallStatus } from "../../lib/types";
import {
  canStreamInstall,
  gameStatusLabel,
  gameTransferStatusPresentation,
  hasNewerLocalVersion,
  isInProgress,
} from "../../lib/gameState";
import { formatBytes, formatEtiVersion, formatPlayers } from "../../lib/format";

interface Props {
  game: Game;
  thumbnailUrl: string | null;
  supportsStreamedInstall: boolean;
  onClose: () => void;
  onPrimary: (game: Game) => void;
  onStreamInstall: (game: Game) => void;
  onUninstall: (game: Game) => void;
  onRemoveDownload: (game: Game) => void;
  onCancelDownload: (game: Game) => void;
  onStartServer: (game: Game) => void;
  onViewFiles: (game: Game) => void;
}

const tagsFromGame = (game: Game): string[] => {
  const tags: string[] = [];
  if (game.genre) tags.push(game.genre);
  if (game.publisher) tags.push(game.publisher);
  if (game.release_year) tags.push(game.release_year);
  return tags;
};

export const GameDetailModal = ({
  game,
  thumbnailUrl,
  supportsStreamedInstall,
  onClose,
  onPrimary,
  onStreamInstall,
  onUninstall,
  onRemoveDownload,
  onCancelDownload,
  onStartServer,
  onViewFiles,
}: Props) => {
  const tags = tagsFromGame(game);
  // Some game metadata contains a literal <br>; keep sanitization exact.
  const description = game.description.split("<br>").join("");
  const canRemoveDownload = game.downloaded &&
    !game.installed &&
    !isInProgress(game.install_status);
  const showStreamInstall = canStreamInstall(game, supportsStreamedInstall);
  const canViewFiles = game.downloaded ||
    game.installed ||
    game.install_status === InstallStatus.Downloading ||
    game.install_status === InstallStatus.Installing;
  const newerThanExpected = hasNewerLocalVersion(game);
  const newerStatus = newerThanExpected
    ? `Local version ${
      formatEtiVersion(game.local_version)
    } is newer than expected ${formatEtiVersion(game.eti_game_version)}.`
    : undefined;
  const hasOutbound = game.active_outbound_transfers !== undefined &&
    game.active_outbound_transfers > 0;
  const outboundStatus = hasOutbound
    ? `Sharing to ${game.active_outbound_transfers} peer${
      game.active_outbound_transfers === 1 ? "" : "s"
    }.`
    : undefined;
  const transferStatus = gameTransferStatusPresentation(game.transfer_status);
  const statusMessage = transferStatus?.message ?? outboundStatus ??
    game.status_message ?? newerStatus;
  const statusLevel = transferStatus?.level ??
    (hasOutbound
      ? "info"
      : (game.status_level ?? (newerStatus ? "warning" : undefined)));
  return (
    <Modal onClose={onClose}>
      <button
        className="modal-close"
        type="button"
        onClick={onClose}
        aria-label="Close"
      >
        <Icon.close />
      </button>
      <div className="modal-hero">
        <GameCover
          game={game}
          aspect="banner"
          thumbnailUrl={thumbnailUrl}
          hideTitle
        />
        <div className="modal-hero-fade" />
        <div className="modal-hero-text">
          {tags.length > 0 && (
            <div className="modal-tags">
              {tags.map((t) => <span key={t} className="modal-tag">{t}</span>)}
            </div>
          )}
          <h2 className="modal-title">{game.name}</h2>
        </div>
        <div className="modal-state">
          <StateChip game={game} showNone />
        </div>
      </div>

      <div className="modal-body">
        <div className="modal-meta">
          <div className="meta-cell">
            <div className="meta-label">Size</div>
            <div className="meta-value">{formatBytes(game.size)}</div>
          </div>
          <div className="meta-cell">
            <div className="meta-label">Players</div>
            <div className="meta-value">
              <Icon.users /> {formatPlayers(game.max_players)}
            </div>
          </div>
          <div className="meta-cell">
            <div className="meta-label">Version</div>
            <div className="meta-value meta-mono">
              {formatEtiVersion(game.eti_game_version ?? game.local_version)}
            </div>
          </div>
          <div className="meta-cell">
            <div className="meta-label">Status</div>
            <div className="meta-value">{gameStatusLabel(game)}</div>
          </div>
        </div>

        {description && <p className="modal-desc">{description}</p>}

        {statusMessage && (
          <p
            className={`modal-status${statusLevel ? ` is-${statusLevel}` : ""}`}
          >
            {statusMessage}
          </p>
        )}

        <div className="modal-actions">
          <ActionButton
            game={game}
            size="lg"
            onClick={() => onPrimary(game)}
            onCancelDownload={onCancelDownload}
          />
          {showStreamInstall && (
            <button
              type="button"
              className="ghost-btn"
              title="Install without keeping archive files"
              onClick={() => onStreamInstall(game)}
            >
              <Icon.install />
              <span>Low disk install</span>
            </button>
          )}
          {game.installed && game.can_host_server === true && (
            <button
              type="button"
              className="act-btn act-lg act-server"
              onClick={() => onStartServer(game)}
            >
              <Icon.server />
              <span className="act-label">Start Server</span>
            </button>
          )}
          {game.installed && (
            <button
              type="button"
              className="ghost-btn ghost-danger"
              onClick={() => onUninstall(game)}
            >
              <Icon.trash />
              <span>Uninstall</span>
            </button>
          )}
          {canRemoveDownload && (
            <button
              type="button"
              className="ghost-btn ghost-danger"
              onClick={() => onRemoveDownload(game)}
            >
              <Icon.trash />
              <span>Remove files</span>
            </button>
          )}
          {canViewFiles && (
            <>
              <div className="modal-actions-spacer" />
              <button
                type="button"
                className="ghost-btn"
                onClick={() => onViewFiles(game)}
              >
                <Icon.folder />
                <span>View Files</span>
              </button>
            </>
          )}
        </div>
      </div>
    </Modal>
  );
};