// HTML search view — replaces search.php (the public, human-facing version).

import { readFile } from 'node:fs/promises';
import { entryPath } from '../lib/paths.js';
import { getRatings, lookupRating } from '../lib/imdbRatings.js';
import { parseQuery } from '../lib/queryParser.js';
import { filterAndLower } from '../lib/titleFilter.js';
import { search as runSearch } from '../lib/searchEngine.js';
import { formatCurrency, formatRuntime, pad2 } from '../lib/format.js';
import {
  POSTER_URL, NO_POSTER_URL, MOVIE_URL, TV_URL, IMDB_URL,
} from '../config.js';

function esc(s) {
  if (s == null) return '';
  return String(s)
    .replace(/&/g, '&')
    .replace(/</g, '&lt;')
    .replace(/>/g, '&gt;')
    .replace(/"/g, '&quot;')
    .replace(/'/g, '&#039;');
}

function center(msg) {
  return `<div style="text-align: center;">${esc(msg)}</div>`;
}

async function getDetail(type, id) {
  try {
    return JSON.parse(await readFile(entryPath(type, id), 'utf8'));
  } catch {
    return null;
  }
}

async function render(query) {
  if (!query) return '';

  const parsed = parseQuery(query);
  if (!parsed) return '';
  if (parsed.error) return center(parsed.error);

  const { type, titlein, yearin, episodein } = parsed;
  const filteredTitleIn = filterAndLower(titlein);

  const matches = await runSearch(type, filteredTitleIn, yearin);
  if (!matches.length) {
    return center('Not found in localized and original titles database');
  }

  const ratings = await getRatings();
  const movietvurl = type === 'movie' ? MOVIE_URL : TV_URL;

  let html = '<div style="text-align: center; font-size: 14px; font-family: sans-serif;">';

  for (const m of matches) {
    const detail = await getDetail(type, m.tmdb);
    if (!detail) continue;

    const poster = detail.poster_path;
    const src = poster ? `${POSTER_URL}/${poster}` : NO_POSTER_URL;

    let genres = '';
    if (Array.isArray(detail.genres)) {
      for (const g of detail.genres) genres += `${g.name} `;
    }

    let countries = '';
    if (Array.isArray(detail.production_countries)) {
      for (const c of detail.production_countries) countries += `${c.iso_3166_1} `;
    }

    const runtime = detail.runtime;
    const imdb = !episodein ? detail.imdb_id : detail?.external_ids?.imdb_id;
    const { rating: ivote, votes: ivoteCount } = lookupRating(ratings, imdb);
    const tvote = Math.round((parseFloat(detail.vote_average) || 0) * 10) / 10;
    const tvoteCount = parseInt(detail.vote_count, 10) || 0;
    const budget = detail.budget;
    const revenue = detail.revenue;

    let seasons;
    if (episodein && Array.isArray(detail.seasons)) {
      seasons = detail.seasons.map((s) => `S${pad2(s.season_number || 0)}E${pad2(s.episode_count || 0)}`);
    }

    html += '<span style="display: inline-block; margin: 10px; vertical-align: top;">';
    html += `<img src="${esc(src)}" width="200" height="300"/>`;
    html += '<div style="display: inline-block; white-space: normal; overflow: auto; vertical-align: top; width: 400px; height: 300px; background-color: #484848; color: #ffffff;">';

    html += '<p style="margin: 10px;">';
    if (m.filteredTitle) html += `FR <b>${esc(m.title)}</b> ${esc(m.year)}<br />`;
    if (m.filteredEnglishTitle) html += `EN <b>${esc(m.englishTitle)}</b> ${esc(m.year)}<br />`;
    if (m.filteredOriginalTitle) html += `VO <b>${esc(m.originalTitle)}</b> ${esc(m.year)}<br />`;

    html += '<p style="margin: 10px;">';
    if (genres) html += esc(genres);
    if (countries) html += `<b>${esc(countries)}</b>`;
    if (runtime) html += formatRuntime(runtime);
    html += '</p>';

    html += '<p style="margin: 10px;">';
    if (imdb) {
      html += `<a href="${esc(IMDB_URL)}/${esc(imdb)}" style="background-color: #f3ce13; color: #000000; text-decoration: none;" onclick="this.target='_blank';">`;
      html += `&nbsp;IMDb&nbsp;</a> ${esc(imdb)} <b>${esc(ivote)}</b> ${esc(ivoteCount)} `;
    }
    html += `<a href="${esc(movietvurl)}/${esc(m.tmdb)}" style="background-color: #01b4e4; color: #000000; text-decoration: none;" onclick="this.target='_blank';">`;
    html += `&nbsp;TMDb&nbsp;</a> ${esc(m.tmdb)} <b>${esc(tvote)}</b> ${esc(tvoteCount)}<br />`;

    if (budget || revenue) {
      html += `${esc(formatCurrency(budget))} ${esc(formatCurrency(revenue))}`;
    }
    html += '</p>';

    html += '<p style="margin: 10px; text-align: left;">';
    if (seasons) {
      html += '<b>Episodes finaux</b> ';
      for (const s of seasons) html += `${esc(s)} `;
    }
    html += '</p>';

    html += '<p style="margin: 10px; text-align: left;">';
    html += `<b>${esc(detail.tagline || '')}</b>`;
    html += '</p>';

    html += '<p style="margin: 10px; text-align: justify;">';
    if (detail.overview) html += esc(detail.overview);
    html += '</p>';

    html += '</div></span>';
  }

  html += '</div>';
  return html;
}

async function handle(req, reply) {
  reply.header('Content-Type', 'text/html; charset=utf-8');
  return render(req.query?.query || '');
}

export default async function searchRoutes(fastify) {
  fastify.get('/search', handle);
  fastify.get('/search.php', handle);
}