import { formatCredits } from './tradeHelper.js';
import { createNpcActor, generateClientMission, generateEncounter, generateQuickNpc, formatSigned } from './npcHelper.js';
import { generateAllyEnemy } from './allyEnemyGenerator.js';
import { NPC_RELATIONS } from './data/npcTables.js';
import { generateAndCreateTravellerNpc } from './travellerNpcGenerator.js';
import { generateRandomName } from './data/travellerNpcGenerator.js';
import { localizeSkill } from './mgt2eSkills.js';
import {
  CITIZEN_CATEGORY_LIST,
  EXPERIENCE_LEVEL_LIST,
  ROLE_LIST,
  GENDER_LIST,
  DEFAULT_OPTIONS,
  CITIZEN_CATEGORY_LABELS_FR,
  EXPERIENCE_LEVEL_LABELS_FR,
  ROLE_LABELS_FR,
  GENDER_LABELS_FR
} from './data/travellerNpcGenerator.js';

const { ApplicationV2, HandlebarsApplicationMixin } = foundry.applications.api;
const MODULE_ID = 'mgt2-compendium-amiral-denisov';

export class NpcDialog extends HandlebarsApplicationMixin(ApplicationV2) {
  static DEFAULT_OPTIONS = {
    id: 'mgt2-npc',
    classes: ['mgt2-npc-dialog'],
    position: {
      width: 720,
      height: 'auto',
    },
    window: {
      title: 'PNJ & Rencontres – MgT2e',
      resizable: true,
    },
  };

  static PARTS = {
    main: {
      template: `modules/${MODULE_ID}/templates/npc-dialog.hbs`,
      root: true,
    },
  };

  constructor(options = {}) {
    super(options);
    this._activeTab = options.initialTab ?? 'npc';
    this._formData = {
      npc: {
        relation: options.relation ?? 'contact',
        experienceBias: 'random',
        createActor: false,
        actorName: '',
        openCreatedActor: true,
      },
      encounter: {
        context: options.context ?? 'starport',
        includeFollowUp: true,
      },
      mission: {},
      traveller: {
        citizenCategory: DEFAULT_OPTIONS.citizenCategory,
        experience: DEFAULT_OPTIONS.experience,
        role: DEFAULT_OPTIONS.role,
        gender: DEFAULT_OPTIONS.gender,
        firstName: '',
        surname: '',
        useRandomName: true,
        createActor: DEFAULT_OPTIONS.createActor,
        actorName: '',
        openCreatedActor: DEFAULT_OPTIONS.openCreatedActor,
      },
      ae: {
        relation: options.relation ?? 'contact',
        includeSpecial: true,
        createActor: false,
        actorName: '',
        openCreatedActor: true,
      },
    };
  }

  async _prepareContext() {
    registerHandlebarsHelpers();
    return {
      ...this._formData,
      activeTab: this._activeTab,
      relations: Object.entries(NPC_RELATIONS).map(([key, value]) => ({ key, label: value.label })),
      citizenCategories: CITIZEN_CATEGORY_LIST.map(c => ({
        key: c.key,
        label: CITIZEN_CATEGORY_LABELS_FR[c.key] || c.label,
        description: c.description
      })),
      experienceLevels: EXPERIENCE_LEVEL_LIST.map(e => ({
        key: e.key,
        label: EXPERIENCE_LEVEL_LABELS_FR[e.key] || e.label,
        description: e.description
      })),
      roles: ROLE_LIST.map(r => ({
        key: r.key,
        label: ROLE_LABELS_FR[r.key] || r.label,
        description: r.description
      })),
      genders: GENDER_LIST.map(g => ({
        key: g.key,
        label: GENDER_LABELS_FR[g.key] || g.label
      })),
    };
  }

  async _onRender(context, options) {
    await super._onRender(context, options);
    const html = this._getForm();
    if (!html?.length) return;
    html.addClass('mgt2-npc-form');

    this._applyThemeStyles(html);

    html.find('[data-action="generate-npc"]').on('click', async (event) => {
      event.preventDefault();
      this._readForm(html);
      await this._handleNpc();
    });

    html.find('[data-action="generate-encounter"]').on('click', async (event) => {
      event.preventDefault();
      this._readForm(html);
      await this._handleEncounter();
    });

    html.find('[data-action="generate-mission"]').on('click', async (event) => {
      event.preventDefault();
      this._readForm(html);
      await this._handleMission();
    });

    html.find('.tabs .item').on('click', (event) => {
      event.preventDefault();
      this._readForm(html);
      this._activateTab($(event.currentTarget).data('tab'));
    });

    // Gestion des événements pour l'onglet PNJ Détaillé (Traveller)
    html.find('[data-action="generate-traveller-npc"]').on('click', async (event) => {
      event.preventDefault();
      this._readForm(html);
      await this._handleTravellerNpc();
    });

    html.find('[data-action="generate-ally-enemy"]').on('click', async (event) => {
      event.preventDefault();
      this._readForm(html);
      await this._handleAllyEnemy();
    });

    html.find('[data-action="randomize-name"]').on('click', (event) => {
      event.preventDefault();
      this._randomizeTravellerName(html);
    });

    html.find('[name="traveller.useRandomName"]').on('change', (event) => {
      const useRandom = event.target.checked;
      this._formData.traveller.useRandomName = useRandom;
      html.find('.traveller-name-fields').toggleClass('hidden', useRandom);
    });

    // Initialiser l'affichage des champs de nom pour l'onglet Traveller
    html.find('.traveller-name-fields').toggleClass('hidden', this._formData.traveller.useRandomName);
  }

  _getForm() {
    return $(this.element).find('.window-content');
  }

  _activateTab(tabId) {
    const html = this._getForm();
    if (!html?.length) return;

    this._activeTab = tabId;
    html.find('.tabs .item').removeClass('active');
    html.find(`.tabs .item[data-tab="${tabId}"]`).addClass('active');
    html.find('.tab-content .tab').removeClass('active');
    html.find(`.tab-content .tab[data-tab="${tabId}"]`).addClass('active');
    this._applyThemeStyles(html);
  }

  _applyThemeStyles(html) {
    html.find('.tabs .item').css({
      color: '#d8c79a',
      'text-shadow': 'none',
      'background-color': '',
      'border-bottom-color': 'transparent'
    });

    html.find('.tabs .item.active').css({
      color: '#d9b24c',
      'text-shadow': 'none',
      'background-color': 'rgba(201, 162, 39, 0.18)',
      'border-bottom-color': '#c9a227'
    });

    html.find('h3').css({
      color: '#5f4300',
      'border-bottom-color': '#b78f26',
      'text-shadow': 'none'
    });

    html.find('legend').css({
      color: '#7a5c00',
      'text-shadow': 'none'
    });
  }

  _readForm(html) {
    this._formData.npc.relation = html.find('[name="npc.relation"]').val();
    this._formData.npc.experienceBias = html.find('[name="npc.experienceBias"]').val();
    this._formData.npc.createActor = html.find('[name="npc.createActor"]').is(':checked');
    this._formData.npc.actorName = html.find('[name="npc.actorName"]').val();
    this._formData.npc.openCreatedActor = html.find('[name="npc.openCreatedActor"]').is(':checked');
    this._formData.encounter.context = html.find('[name="encounter.context"]').val();
    this._formData.encounter.includeFollowUp = html.find('[name="encounter.includeFollowUp"]').is(':checked');

    // Données pour l'onglet Alliés/Ennemis
    this._formData.ae.relation = html.find('[name="ae.relation"]').val();
    this._formData.ae.includeSpecial = html.find('[name="ae.includeSpecial"]').is(':checked');
    this._formData.ae.createActor = html.find('[name="ae.createActor"]').is(':checked');
    this._formData.ae.actorName = html.find('[name="ae.actorName"]').val();
    this._formData.ae.openCreatedActor = html.find('[name="ae.openCreatedActor"]').is(':checked');

    // Données pour l'onglet PNJ Détaillé (Traveller)
    this._formData.traveller.citizenCategory = html.find('[name="traveller.citizenCategory"]').val();
    this._formData.traveller.experience = html.find('[name="traveller.experience"]').val();
    this._formData.traveller.role = html.find('[name="traveller.role"]').val();
    this._formData.traveller.gender = html.find('[name="traveller.gender"]').val();
    this._formData.traveller.firstName = html.find('[name="traveller.firstName"]').val();
    this._formData.traveller.surname = html.find('[name="traveller.surname"]').val();
    this._formData.traveller.useRandomName = html.find('[name="traveller.useRandomName"]').is(':checked');
    this._formData.traveller.createActor = html.find('[name="traveller.createActor"]').is(':checked');
    this._formData.traveller.actorName = html.find('[name="traveller.actorName"]').val();
    this._formData.traveller.openCreatedActor = html.find('[name="traveller.openCreatedActor"]').is(':checked');
  }

  async _handleNpc() {
    const result = await generateQuickNpc(this._formData.npc);
    if (this._formData.npc.createActor) {
      const actor = await createNpcActor(result, {
        name: this._formData.npc.actorName,
        openSheet: this._formData.npc.openCreatedActor,
      });
      result.createdActor = { id: actor.id, name: actor.name };
      ui.notifications.info(`Fiche PNJ créée : ${actor.name}`);
    }
    await this._postToChatResult(result);
  }

  async _handleEncounter() {
    const result = await generateEncounter(this._formData.encounter);
    await this._postToChatResult(result);
  }

  async _handleMission() {
    const result = await generateClientMission();
    await this._postToChatResult(result);
  }

  async _handleTravellerNpc() {
    const button = $(this.element).find('[data-action="generate-traveller-npc"]');
    const originalLabel = button.html();
    
    try {
      button.prop('disabled', true).html('<i class="fas fa-spinner fa-spin"></i> Génération...');
      
      const generateOptions = {
        citizenCategory: this._formData.traveller.citizenCategory,
        experience: this._formData.traveller.experience,
        role: this._formData.traveller.role,
        gender: this._formData.traveller.gender,
        createActor: this._formData.traveller.createActor,
        actorName: this._formData.traveller.actorName,
        openCreatedActor: this._formData.traveller.openCreatedActor
      };
      
      if (!this._formData.traveller.useRandomName && this._formData.traveller.firstName && this._formData.traveller.surname) {
        generateOptions.firstName = this._formData.traveller.firstName;
        generateOptions.surname = this._formData.traveller.surname;
      }
      
      const result = await generateAndCreateTravellerNpc(generateOptions);
      
      if (result.success) {
        await this._postToChatResult(result);
        if (result.createdActor) {
          ui.notifications.info(`Fiche PNJ Traveller créée : ${result.createdActor.name}`);
        }
      } else {
        ui.notifications.error('Erreur lors de la génération du PNJ Traveller');
      }
    } catch (error) {
      console.error(`${MODULE_ID} | Erreur lors de la génération du PNJ Traveller:`, error);
      ui.notifications.error(`Erreur: ${error.message}`);
    } finally {
      button.prop('disabled', false).html(originalLabel);
    }
  }

  async _handleAllyEnemy() {
    const button = $(this.element).find('[data-action="generate-ally-enemy"]');
    const originalLabel = button.html();

    try {
      button.prop('disabled', true).html('<i class="fas fa-spinner fa-spin"></i> Génération...');

      const result = await generateAllyEnemy(this._formData.ae.relation, {
        includeSpecial: this._formData.ae.includeSpecial,
      });

      if (result.success) {
        if (this._formData.ae.createActor) {
          const ae = this._formData.ae;
          const actorName = ae.actorName?.trim() || `PNJ — ${result.relation.label}`;
          const baseActorSystem = game.system?.id === 'mgt2e'
            ? await (await import('./travellerNpcGenerator.js')).getMgt2eBaseActorSystem()
            : null;
          const actorData = {
            name: actorName,
            type: 'npc',
            img: 'systems/mgt2e/icons/cargo/passenger-middle.svg',
            system: {
              settings: foundry.utils.mergeObject(foundry.utils.deepClone(baseActorSystem?.settings ?? {}), {
                hideUntrained: true, lockCharacteristics: true,
              }),
              sophont: foundry.utils.mergeObject(foundry.utils.deepClone(baseActorSystem?.sophont ?? {}), {
                age: 18, homeworld: '', profession: result.relation.label,
              }),
              characteristics: foundry.utils.deepClone(baseActorSystem?.characteristics ?? {}),
              hits: foundry.utils.deepClone(baseActorSystem?.hits ?? {}),
              skills: foundry.utils.deepClone(baseActorSystem?.skills ?? {}),
            },
            flags: {
              [MODULE_ID]: { generatedAllyEnemy: { relation: result.relation.key } },
            },
          };
          const actor = await Actor.create(actorData, { renderSheet: false });
          result.createdActor = { id: actor.id, name: actor.name };
          if (ae.openCreatedActor) actor.sheet?.render(true);
          ui.notifications.info(`Fiche PNJ créée : ${actor.name}`);
        }
        await this._postToChatResult(result);
      } else {
        ui.notifications.error('Erreur lors de la génération de la relation');
      }
    } catch (error) {
      console.error(`${MODULE_ID} | Erreur AE:`, error);
      ui.notifications.error(`Erreur: ${error.message}`);
    } finally {
      button.prop('disabled', false).html(originalLabel);
    }
  }

  _randomizeTravellerName(html) {
    const name = generateRandomName(this._formData.traveller.gender);
    html.find('[name="traveller.firstName"]').val(name.firstName);
    html.find('[name="traveller.surname"]').val(name.surname);
    this._formData.traveller.firstName = name.firstName;
    this._formData.traveller.surname = name.surname;
    this._formData.traveller.useRandomName = false;
    html.find('[name="traveller.useRandomName"]').prop('checked', false);
    html.find('.traveller-name-fields').removeClass('hidden');
  }

  async _postToChatResult(data) {
    registerHandlebarsHelpers();
    
    let template = `modules/${MODULE_ID}/templates/npc-result.hbs`;
    let resultType = 'npc-result';

    if (data.type === 'traveller-npc' || data?.flags?.[MODULE_ID]?.type === 'traveller-npc-result') {
      template = `modules/${MODULE_ID}/templates/traveller-npc-result.hbs`;
      resultType = 'traveller-npc-result';
    } else if (data.type === 'ally-enemy') {
      template = `modules/${MODULE_ID}/templates/ally-enemy-result.hbs`;
      resultType = 'ally-enemy-result';
    }
    
    const html = await foundry.applications.handlebars.renderTemplate(template, data);

    await ChatMessage.create({
      content: html,
      speaker: ChatMessage.getSpeaker(),
      flags: { [MODULE_ID]: { type: resultType } },
    });
  }
}

let helpersRegistered = false;

function registerHandlebarsHelpers() {
  if (helpersRegistered) return;
  helpersRegistered = true;

  // Helpers existants pour NPC
  Handlebars.registerHelper('eq', (a, b) => a === b);
  Handlebars.registerHelper('join', (arr, sep) => (Array.isArray(arr) ? arr.join(sep) : ''));
  Handlebars.registerHelper('formatCredits', (amount) => formatCredits(amount));
  Handlebars.registerHelper('contains', (text, search) => String(text ?? '').includes(search));
  
  // Helper pour localiser une compétence (ex: 'pilot' -> 'Pilote')
  Handlebars.registerHelper('localizeSkill', (skillFqn) => {
    if (!skillFqn) return '';
    return localizeSkill(String(skillFqn));
  });
  
  // Helper pour joindre un tableau de compétences en les localisant
  Handlebars.registerHelper('joinLocalizedSkills', (arr, sep = ', ') => {
    if (!Array.isArray(arr)) return '';
    return arr.map(skill => localizeSkill(String(skill))).join(sep);
  });
  
  // Helpers pour Traveller NPC
  Handlebars.registerHelper('gt', (a, b) => a > b);
  
  // Helper pour afficher le niveau de compétence avec un symbole
  Handlebars.registerHelper('skillLevelSymbol', (level) => {
    if (level === 0) return '';
    if (level === 1) return '★';
    if (level === 2) return '★★';
    if (level === 3) return '★★★';
    return `+${level}`;
  });
  
  // Helper pour formater le DM (Difficulté Modificateur)
  Handlebars.registerHelper('formatDm', (value) => {
    const dm = Math.floor((value - 6) / 3);
    return dm >= 0 ? `+${dm}` : `${dm}`;
  });
  
  // Helper pour obtenir la classe CSS du niveau de compétence
  Handlebars.registerHelper('skillLevelClass', (level) => {
    if (level === 3) return 'skill-level-3';
    if (level === 2) return 'skill-level-2';
    if (level === 1) return 'skill-level-1';
    return 'skill-level-0';
  });
  
  // Helper pour lookup dans un objet
  Handlebars.registerHelper('lookup', (obj, key) => {
    if (!obj || !key) return '';
    return obj[key] !== undefined ? obj[key] : '';
  });

  const RELATION_LABELS = Object.entries(NPC_RELATIONS).reduce((acc, [key, val]) => {
    acc[key] = val.label;
    return acc;
  }, {});

  Handlebars.registerHelper('lookupRelationKey', (key) => RELATION_LABELS[key] || key);

  Handlebars.registerHelper('formatSigned', (value) => formatSigned(value));
}