import { Clock3, Globe2, User2, X } from "lucide-react";

import type { WorkspaceLogDetail } from "../../api/logs";
import { API_BASE_URL } from "../../config/constants";
import { useTranslation } from "../../hooks/useTranslation";
import { Button } from "../ui/button";

const resolveImageUrl = (value?: string | null) => {
  if (!value) return null;
  if (/^https?:\/\//i.test(value)) return value;
  return `${API_BASE_URL.replace(/\/+$/, "")}/${value.replace(/^\/+/, "")}`;
};

export function LogDetailsPanel({
  open,
  log,
  isLoading,
  onClose,
}: {
  open: boolean;
  log: WorkspaceLogDetail | null;
  isLoading: boolean;
  onClose: () => void;
}) {
  const { t, lang } = useTranslation();

  if (!open) {
    return null;
  }

  const formatTimestamp = (value?: string | null) => {
    if (!value) return "-";
    return new Intl.DateTimeFormat(lang === "fa" ? "fa-IR-u-ca-persian" : "en-US", {
      year: "numeric",
      month: "short",
      day: "numeric",
      hour: "2-digit",
      minute: "2-digit",
    }).format(new Date(value));
  };

  const actorName = log?.actor?.full_name || t.logs?.unknownActor || "Unknown actor";
  const actorAvatar = resolveImageUrl(log?.actor?.profile_picture);

  return (
    <div className="fixed inset-0 z-[80] flex items-end bg-slate-950/40 backdrop-blur-[2px] lg:items-stretch lg:justify-end">
      <button type="button" className="absolute inset-0 cursor-pointer" onClick={onClose} aria-label="Close log details" />
      <aside className="relative z-10 flex max-h-[88vh] w-full flex-col rounded-t-[2rem] bg-white shadow-2xl dark:bg-slate-950 lg:h-full lg:max-h-none lg:w-[34rem] lg:rounded-none lg:border-l lg:border-slate-800">
        <div className="flex items-center justify-between border-b border-slate-200 px-5 py-4 dark:border-slate-800">
          <div>
            <h2 className="text-lg font-semibold text-slate-900 dark:text-white">
              {t.logs?.detailsTitle || "Activity details"}
            </h2>
            <p className="text-sm text-slate-500 dark:text-slate-400">
              {t.logs?.detailsHint || "Review the exact values that changed in this action."}
            </p>
          </div>
          <Button type="button" variant="ghost" size="icon" onClick={onClose} className="rounded-xl">
            <X className="h-5 w-5" />
          </Button>
        </div>

        <div className="flex-1 overflow-y-auto px-5 py-5">
          {isLoading ? (
            <div className="rounded-2xl border border-slate-200 bg-slate-50 p-4 text-sm text-slate-500 dark:border-slate-800 dark:bg-slate-900 dark:text-slate-400">
              {t.logs?.loadingDetails || "Loading details..."}
            </div>
          ) : !log ? (
            <div className="rounded-2xl border border-dashed border-slate-300 p-6 text-center text-sm text-slate-500 dark:border-slate-700 dark:text-slate-400">
              {t.logs?.selectLogHint || "Select a log entry to see its details."}
            </div>
          ) : (
            <div className="space-y-5">
              <div className="rounded-3xl border border-slate-200 bg-slate-50 p-4 dark:border-slate-800 dark:bg-slate-900">
                <div className="flex items-start gap-4">
                  <div className="flex h-14 w-14 shrink-0 items-center justify-center overflow-hidden rounded-2xl bg-slate-200 text-base font-semibold text-slate-700 dark:bg-slate-800 dark:text-slate-200">
                    {actorAvatar ? (
                      <img src={actorAvatar} alt={actorName} className="h-full w-full object-cover" />
                    ) : (
                      <span>{actorName.trim().charAt(0).toUpperCase()}</span>
                    )}
                  </div>
                  <div className="min-w-0 flex-1">
                    <p className="text-base font-semibold text-slate-900 dark:text-white">{actorName}</p>
                    <div className="mt-2 grid gap-2 text-sm text-slate-500 dark:text-slate-400">
                      <div className="flex items-center gap-2">
                        <User2 className="h-4 w-4" />
                        <span>{log.actor?.mobile || "-"}</span>
                      </div>
                      <div className="flex items-center gap-2">
                        <Clock3 className="h-4 w-4" />
                        <span>{formatTimestamp(log.timestamp)}</span>
                      </div>
                      {log.remote_addr ? (
                        <div className="flex items-center gap-2">
                          <Globe2 className="h-4 w-4" />
                          <span>{log.remote_addr}</span>
                        </div>
                      ) : null}
                    </div>
                  </div>
                </div>
              </div>

              <div className="grid gap-3 sm:grid-cols-2">
                <div className="rounded-2xl border border-slate-200 bg-white p-4 dark:border-slate-800 dark:bg-slate-900">
                  <p className="text-xs font-semibold uppercase tracking-[0.16em] text-slate-500 dark:text-slate-400">
                    {t.logs?.target || "Target"}
                  </p>
                  <p className="mt-2 text-sm font-semibold text-slate-900 dark:text-white">{log.target.name}</p>
                  <p className="mt-1 text-sm text-slate-500 dark:text-slate-400">
                    {t.logs?.sections?.[log.section] || log.section}
                  </p>
                </div>
                <div className="rounded-2xl border border-slate-200 bg-white p-4 dark:border-slate-800 dark:bg-slate-900">
                  <p className="text-xs font-semibold uppercase tracking-[0.16em] text-slate-500 dark:text-slate-400">
                    {t.logs?.event || "Event"}
                  </p>
                  <p className="mt-2 text-sm font-semibold text-slate-900 dark:text-white">
                    {t.logs?.events?.[log.event] || log.event}
                  </p>
                  <p className="mt-1 text-sm text-slate-500 dark:text-slate-400">{log.audit_action}</p>
                </div>
              </div>

              <div className="rounded-3xl border border-slate-200 bg-white dark:border-slate-800 dark:bg-slate-900">
                <div className="border-b border-slate-100 px-5 py-4 dark:border-slate-800">
                  <h3 className="text-base font-semibold text-slate-900 dark:text-white">
                    {t.logs?.changesTitle || "Changes"}
                  </h3>
                </div>
                {log.changes.length ? (
                  <div className="divide-y divide-slate-100 dark:divide-slate-800">
                    {log.changes.map((change, index) => (
                      <div key={`${change.field}-${index}`} className="grid gap-3 px-5 py-4 md:grid-cols-[1.2fr_1fr_1fr]">
                        <div>
                          <p className="text-sm font-semibold text-slate-900 dark:text-white">{change.label}</p>
                          {/* <p className="mt-1 text-xs text-slate-500 dark:text-slate-400">{change.summary}</p> */}
                        </div>
                        <div>
                          <p className="text-xs font-semibold uppercase tracking-[0.16em] text-slate-500 dark:text-slate-400">
                            {t.logs?.previousValue || "Previous"}
                          </p>
                          <p className="mt-1 break-words text-sm text-slate-700 dark:text-slate-300">
                            {change.old_value || "-"}
                          </p>
                        </div>
                        <div>
                          <p className="text-xs font-semibold uppercase tracking-[0.16em] text-slate-500 dark:text-slate-400">
                            {t.logs?.currentValue || "Current"}
                          </p>
                          <p className="mt-1 break-words text-sm text-slate-700 dark:text-slate-300">
                            {change.new_value || "-"}
                          </p>
                        </div>
                      </div>
                    ))}
                  </div>
                ) : (
                  <div className="px-5 py-6 text-sm text-slate-500 dark:text-slate-400">
                    {t.logs?.noDetails || "No field-level details are available for this activity."}
                  </div>
                )}
              </div>

              {log.serialized_snapshot ? (
                <details className="rounded-2xl border border-slate-200 bg-white p-4 dark:border-slate-800 dark:bg-slate-900">
                  <summary className="cursor-pointer text-sm font-semibold text-slate-900 dark:text-white">
                    {t.logs?.snapshot || "Serialized snapshot"}
                  </summary>
                  <pre className="mt-3 overflow-x-auto rounded-xl bg-slate-950 p-3 text-xs text-slate-100" dir="ltr">
                    {JSON.stringify(log.serialized_snapshot, null, 2)}
                  </pre>
                </details>
              ) : null}
            </div>
          )}
        </div>
      </aside>
    </div>
  );
}