import { type GeoInfo } from '@/composables/useMessages';
import { getIpColorWithPerks, getIpGlowWithPerks, getIpGlow } from '@/composables/ipColor';
import { usePerks } from '@/composables/usePerks';
import { useCustomStyles } from '@/composables/useCustomStyles';
import { useMyPerks } from '@/composables/useMessages';

export function useMessageItem() {
  const { perksFor } = usePerks();
  const { myPerks } = useMyPerks();
  const { prefs } = useCustomStyles();

  function perksOf(m: { authorIp: string; authorPerks?: any }) {
    return m.authorPerks ?? perksFor(m.authorIp);
  }

  function ipStyle(m: { authorIp: string; authorPerks?: any }) {
    const ip = m.authorIp;
    const override = prefs.ipColors[ip];
    if (override && override !== 'auto') {
      return { color: override, textShadow: getIpGlow(override) };
    }
    const p = perksOf(m);
    return { color: getIpColorWithPerks(ip, p), textShadow: getIpGlowWithPerks(ip, p) };
  }

  function petsLeft(m: { authorIp: string; authorPerks?: any }) {
    const ip = m.authorIp;
    if (ip in prefs.ipPets) return prefs.ipPets[ip];
    return (perksOf(m)?.pets ?? [])
      .filter((x: any) => x.position === 'left' || x.position === 'both')
      .map((x: any) => x.char).join('');
  }

  function petsRight(m: { authorIp: string; authorPerks?: any }) {
    const ip = m.authorIp;
    if (ip in prefs.ipPets) return '';
    return (perksOf(m)?.pets ?? [])
      .filter((x: any) => x.position === 'right' || x.position === 'both')
      .map((x: any) => x.char).join('');
  }

  function fmt(date: string) {
    return new Date(date).toLocaleTimeString('fr-FR', { hour: '2-digit', minute: '2-digit' });
  }

  function geoLabel(geo?: GeoInfo | null): string {
    if (!geo) return '';
    if (!geo.countryCode) return 'Local';
    const place = geo.city || geo.country;
    if (geo.lat != null && geo.lon != null) {
      return `${place} · ${geo.lat.toFixed(4)}, ${geo.lon.toFixed(4)}`;
    }
    return place;
  }

  function geoLink(geo?: GeoInfo | null): string {
    if (!geo || geo.lat == null || geo.lon == null) return 'https://maps.google.com';
    return `https://www.google.com/maps/search/?api=1&query=${geo.lat},${geo.lon}`;
  }

  return { perksOf, ipStyle, petsLeft, petsRight, fmt, geoLabel, geoLink, myPerks, prefs };
}