import type { AisTarget } from '../../../entities/aisTarget/model/types';
import type { LegacyVesselInfo } from '../../../entities/legacyVessel/model/types';
import { isFiniteNumber, toSafeNumber } from './setUtils';

export function formatNm(value: number | null | undefined) {
  if (!isFiniteNumber(value)) return '-';
  return `${value.toFixed(2)} NM`;
}

export function getLegacyTag(legacyHits: Map<number, LegacyVesselInfo> | null | undefined, mmsi: number) {
  const legacy = legacyHits?.get(mmsi);
  if (!legacy) return null;
  return `${legacy.permitNo} (${legacy.shipCode})`;
}

export function getTargetName(
  mmsi: number,
  targetByMmsi: Map<number, AisTarget>,
  legacyHits: Map<number, LegacyVesselInfo> | null | undefined,
) {
  const legacy = legacyHits?.get(mmsi);
  const target = targetByMmsi.get(mmsi);
  return (
    (target?.name || '').trim() || legacy?.shipNameCn || legacy?.shipNameRoman || `MMSI ${mmsi}`
  );
}

export function getShipTooltipHtml({
  mmsi,
  targetByMmsi,
  legacyHits,
}: {
  mmsi: number;
  targetByMmsi: Map<number, AisTarget>;
  legacyHits: Map<number, LegacyVesselInfo> | null | undefined;
}) {
  const legacy = legacyHits?.get(mmsi);
  const t = targetByMmsi.get(mmsi);
  const name = getTargetName(mmsi, targetByMmsi, legacyHits);
  const sog = isFiniteNumber(t?.sog) ? t.sog : null;
  const cog = isFiniteNumber(t?.cog) ? t.cog : null;
  const msg = t?.messageTimestamp ?? null;
  const vesselType = t?.vesselType || '';

  const legacyHtml = legacy
    ? `<div style="margin-top: 6px; padding-top: 6px; border-top: 1px solid rgba(255,255,255,.08)">
        <div><b>CN Permit</b> · <b>${legacy.shipCode}</b> · ${legacy.permitNo}</div>
        <div>유효범위: ${legacy.workSeaArea || '-'}</div>
      </div>`
    : '';

  return {
    html: `<div style="font-family: system-ui; font-size: 12px; white-space: nowrap;">
      <div style="font-weight: 700; margin-bottom: 4px;">${name}</div>
      <div>MMSI: <b>${mmsi}</b>${vesselType ? ` · ${vesselType}` : ''}</div>
      <div>SOG: <b>${sog ?? '?'}</b> kt · COG: <b>${cog ?? '?'}</b>°</div>
      ${msg ? `<div style="opacity:.7; font-size: 11px; margin-top: 4px;">${msg}</div>` : ''}
      ${legacyHtml}
    </div>`,
  };
}

export function getPairLinkTooltipHtml({
  warn,
  distanceNm,
  aMmsi,
  bMmsi,
  legacyHits,
  targetByMmsi,
}: {
  warn: boolean;
  distanceNm: number | null | undefined;
  aMmsi: number;
  bMmsi: number;
  legacyHits: Map<number, LegacyVesselInfo> | null | undefined;
  targetByMmsi: Map<number, AisTarget>;
}) {
  const d = formatNm(distanceNm);
  const a = getTargetName(aMmsi, targetByMmsi, legacyHits);
  const b = getTargetName(bMmsi, targetByMmsi, legacyHits);
  const aTag = getLegacyTag(legacyHits, aMmsi);
  const bTag = getLegacyTag(legacyHits, bMmsi);
  return {
    html: `<div style="font-family: system-ui; font-size: 12px;">
      <div style="font-weight: 700; margin-bottom: 4px;">쌍 연결</div>
      <div>${aTag ?? `MMSI ${aMmsi}`}</div>
      <div style="opacity:.85;">↔ ${bTag ?? `MMSI ${bMmsi}`}</div>
      <div style="margin-top: 4px;">거리: <b>${d}</b> · 상태: <b>${warn ? '주의' : '정상'}</b></div>
      <div style="opacity:.6; margin-top: 3px;">${a} / ${b}</div>
    </div>`,
  };
}

export function getFcLinkTooltipHtml({
  suspicious,
  distanceNm,
  fcMmsi,
  otherMmsi,
  legacyHits,
  targetByMmsi,
}: {
  suspicious: boolean;
  distanceNm: number | null | undefined;
  fcMmsi: number;
  otherMmsi: number;
  legacyHits: Map<number, LegacyVesselInfo> | null | undefined;
  targetByMmsi: Map<number, AisTarget>;
}) {
  const d = formatNm(distanceNm);
  const a = getTargetName(fcMmsi, targetByMmsi, legacyHits);
  const b = getTargetName(otherMmsi, targetByMmsi, legacyHits);
  const aTag = getLegacyTag(legacyHits, fcMmsi);
  const bTag = getLegacyTag(legacyHits, otherMmsi);
  return {
    html: `<div style="font-family: system-ui; font-size: 12px;">
      <div style="font-weight: 700; margin-bottom: 4px;">환적 연결</div>
      <div>${aTag ?? `MMSI ${fcMmsi}`}</div>
      <div style="opacity:.85;">→ ${bTag ?? `MMSI ${otherMmsi}`}</div>
      <div style="margin-top: 4px;">거리: <b>${d}</b> · 상태: <b>${suspicious ? '의심' : '일반'}</b></div>
      <div style="opacity:.6; margin-top: 3px;">${a} / ${b}</div>
    </div>`,
  };
}

export function getRangeTooltipHtml({
  warn,
  distanceNm,
  aMmsi,
  bMmsi,
  legacyHits,
}: {
  warn: boolean;
  distanceNm: number | null | undefined;
  aMmsi: number;
  bMmsi: number;
  legacyHits: Map<number, LegacyVesselInfo> | null | undefined;
}) {
  const d = formatNm(distanceNm);
  const aTag = getLegacyTag(legacyHits, aMmsi);
  const bTag = getLegacyTag(legacyHits, bMmsi);
  const radiusNm = toSafeNumber(distanceNm);
  return {
    html: `<div style="font-family: system-ui; font-size: 12px;">
      <div style="font-weight: 700; margin-bottom: 4px;">쌍 연결범위</div>
      <div>${aTag ?? `MMSI ${aMmsi}`}</div>
      <div style="opacity:.85;">↔ ${bTag ?? `MMSI ${bMmsi}`}</div>
      <div style="margin-top: 4px;">범위: <b>${d}</b> · 반경: <b>${formatNm(radiusNm == null ? null : radiusNm / 2)}</b> · 상태: <b>${warn ? '주의' : '정상'}</b></div>
    </div>`,
  };
}

export function getFleetCircleTooltipHtml({
  ownerKey,
  ownerLabel,
  count,
}: {
  ownerKey: string;
  ownerLabel?: string;
  count: number;
}) {
  const displayOwner = ownerLabel && ownerLabel.trim() ? ownerLabel : ownerKey;
  return {
    html: `<div style="font-family: system-ui; font-size: 12px;">
      <div style="font-weight: 700; margin-bottom: 4px;">선단 범위</div>
      <div>소유주: ${displayOwner || '-'}</div>
      <div>선박 수: <b>${count}</b></div>
    </div>`,
  };
}