/*
 *  ThunderAI [https://micz.it/thunderbird-addon-thunderai/]
 *  Copyright (C) 2024 - 2026  Mic (m@micz.it)

 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.

 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.

 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import {
  prefs_default,
  integration_options_config
} from '../../options/mzta-options-default.js';
import { taLogger } from '../../js/mzta-logger.js';
import {
  getSpecialPrompts,
  setSpecialPrompts
} from "../../js/mzta-prompts.js";
import {
  getPlaceholders,
  mapPlaceholderToSuggestion
} from "../../js/mzta-placeholders.js";
import { textareaAutocomplete } from "../../js/mzta-placeholders-autocomplete.js";
import {
  isAPIKeyValue,
  setTomSelectBorder
} from "../../js/mzta-utils.js";
import {
  initializeSpecificIntegrationUI
} from "../_lib/connection-ui.js";

let autocompleteSuggestions = [];
let taLog = new taLogger("mzta-get-calendar-event-page",true);

document.addEventListener('DOMContentLoaded', async () => {

    let specialPrompts = await getSpecialPrompts();
    let get_calendar_event_prompt = specialPrompts.find(prompt => prompt.id === 'prompt_get_calendar_event');

    if (get_calendar_event_prompt && get_calendar_event_prompt.api_type && get_calendar_event_prompt.api_type !== '') {
        let update_prefs = {};
        update_prefs['get_calendar_event_connection_type'] = get_calendar_event_prompt.api_type;
        
        let integration = get_calendar_event_prompt.api_type.replace('_api', '');
        if (integration_options_config && integration_options_config[integration]) {
             for (const key of Object.keys(integration_options_config[integration])) {
                 if (get_calendar_event_prompt[key] !== undefined) {
                     update_prefs[`get_calendar_event_${integration}_${key}`] = get_calendar_event_prompt[key];
                 }
             }
        }
        await browser.storage.sync.set(update_prefs);
    }

    await initializeSpecificIntegrationUI({
      prefix: 'get_calendar_event',
      promptId: 'prompt_get_calendar_event',
      taLog: taLog,
      restoreOptionsCallback: restoreOptions
    });

    i18n.updateDocument();

    document.querySelectorAll(".option-input").forEach(element => {
        element.addEventListener("change", saveOptions);
      });

    let get_calendar_event_textarea = document.getElementById('get_calendar_event_prompt_text');
    let get_calendar_event_save_btn = document.getElementById('btn_save_prompt');
    let get_calendar_event_reset_btn = document.getElementById('btn_reset_prompt');
    let get_calendar_event_use_specific_integration = document.getElementById('get_calendar_event_use_specific_integration');
    let get_calendar_event_no_selection = document.getElementById('calendar_no_selection');
    let get_calendar_event_from_clipboard = document.getElementById('get_calendar_event_from_clipboard');

    get_calendar_event_textarea.addEventListener('input', (event) => {
        get_calendar_event_reset_btn.disabled = (event.target.value === browser.i18n.getMessage('prompt_get_calendar_event_full_text'));
        get_calendar_event_save_btn.disabled = (event.target.value === get_calendar_event_prompt.text);
        if(get_calendar_event_save_btn.disabled){
            document.getElementById('get_calendar_event_prompt_unsaved').classList.add('hidden');
        } else {
            document.getElementById('get_calendar_event_prompt_unsaved').classList.remove('hidden');
        }
    });

    get_calendar_event_use_specific_integration.addEventListener('change', (event) => {
        if (!event.target.checked) {
          browser.storage.sync.set({ get_calendar_event_connection_type: '' });
        }
    });

    get_calendar_event_no_selection.addEventListener('change', async (event) => {
        if (event.target.checked) {
            const currentPromptText = get_calendar_event_textarea.value;
            const hasBodyOrSelected = currentPromptText.includes('{%mail_text_body_or_selected%}') || currentPromptText.includes('{%mail_html_body_or_selected%}');
            if (!hasBodyOrSelected) {
                alert(browser.i18n.getMessage('prefs_OptionText_calendar_no_selection_missing_placeholder'));
                event.target.checked = false;
                return;
            }
        }
        specialPrompts.find(prompt => prompt.id === 'prompt_get_calendar_event').need_selected = event.target.checked ? '0' : '1';
        await setSpecialPrompts(specialPrompts);
        browser.runtime.sendMessage({command: "reload_menus"});
    });

    get_calendar_event_from_clipboard.addEventListener('change', async (event) => {
        if (event.target.checked) {
            // Request clipboardRead permission when enabling the feature
            try {
                const granted = await browser.permissions.request({
                    permissions: ["clipboardRead"]
                });

                if (granted) {
                    // Permission granted, enable the feature
                    await browser.storage.sync.set({ get_calendar_event_from_clipboard: true });
                    browser.runtime.sendMessage({command: "reload_menus"});
                } else {
                    // Permission denied, uncheck the checkbox
                    event.target.checked = false;
                    alert(browser.i18n.getMessage("clipboard_permission_denied"));
                }
            } catch (err) {
                taLog.error("Error requesting clipboard permission:", err);
                event.target.checked = false;
                alert(browser.i18n.getMessage("clipboard_permission_error"));
            }
        } else {
            // Disabling the feature
            await browser.storage.sync.set({ get_calendar_event_from_clipboard: false });
            browser.runtime.sendMessage({command: "reload_menus"});
        }
    });

    get_calendar_event_reset_btn.addEventListener('click', () => {
        get_calendar_event_textarea.value = browser.i18n.getMessage('prompt_get_calendar_event_full_text');
        get_calendar_event_reset_btn.disabled = true;
        let event = new Event('input', { bubbles: true, cancelable: true });
        get_calendar_event_textarea.dispatchEvent(event);
    });

    get_calendar_event_save_btn.addEventListener('click', async () => {
        specialPrompts.find(prompt => prompt.id === 'prompt_get_calendar_event').text = get_calendar_event_textarea.value;
        specialPrompts.find(prompt => prompt.id === 'prompt_get_calendar_event_from_clipboard').text = get_calendar_event_textarea.value;
        await setSpecialPrompts(specialPrompts);
        get_calendar_event_save_btn.disabled = true;
        document.getElementById('get_calendar_event_prompt_unsaved').classList.add('hidden');
        browser.runtime.sendMessage({command: "reload_menus"});
    });

    if(get_calendar_event_prompt.text === 'prompt_get_calendar_event_full_text'){
        get_calendar_event_prompt.text = browser.i18n.getMessage(get_calendar_event_prompt.text);
    }
    get_calendar_event_textarea.value = get_calendar_event_prompt.text;
    get_calendar_event_reset_btn.disabled = (get_calendar_event_textarea.value === browser.i18n.getMessage('prompt_get_calendar_event_full_text'));

    autocompleteSuggestions = (await getPlaceholders(true)).filter(p => !(p.id === 'additional_text')).map(mapPlaceholderToSuggestion);
    textareaAutocomplete(get_calendar_event_textarea, autocompleteSuggestions, 1);    // type_value = 1, only when reading an email

});



// Methods to manage options, derived from: /options/mzta-options.js

function saveOptions(e) {
  e.preventDefault();
  let options = {};
  let element = e.target;

    switch (element.type) {
      case 'checkbox':
        options[element.id] = element.checked;
        break;
      case 'number':
        options[element.id] = element.valueAsNumber;
        break;
      case 'text':
      case 'password':
        options[element.id] = element.value.trim();
        break;
      case 'select-one':
        options[element.id] = element.value;
        break;
      default:
        console.error("[ThunderAI] Unhandled input type:", element.type);
    }

  browser.storage.sync.set(options);
}

async function restoreOptions() {
  function setCurrentChoice(result) {
    document.querySelectorAll(".option-input").forEach(element => {
      if(!element.id) return;
      taLog.log("Options restoring " + element.id + " = " + (isAPIKeyValue(element.id) ? "****************" : result[element.id]));
      switch (element.type) {
        case 'checkbox':
          element.checked = result[element.id] || false;
          break;
        case 'number':
          let default_number_value = 0;
          if(element.id == 'chatgpt_win_height') default_number_value = prefs_default.chatgpt_win_height;
          if(element.id == 'chatgpt_win_width') default_number_value = prefs_default.chatgpt_win_width;
          element.value = result[element.id] ?? default_number_value;
          break;
        case 'text':
        case 'password':
          let default_text_value = '';
          if(element.id == 'default_chatgpt_lang') default_text_value = prefs_default.default_chatgpt_lang;
          element.value = result[element.id] || default_text_value;
          break;
        case 'textarea':
          break;
        default:
        if (element.tagName === 'SELECT') {
            let default_select_value = '';
            const restoreValue = result[element.id] || default_select_value;
            // Check if option exists
            let optionExists = Array.from(element.options).some(opt => opt.value === restoreValue);
            // If it doesn't exist and restoreValue is not empty, create it
            if (!optionExists && restoreValue !== '') {
              let newOption = new Option(restoreValue, restoreValue);
              element.add(newOption);
            }
            // Set value
            element.value = restoreValue;
            if (element.value === '') {
              element.selectedIndex = -1;
            }
            if (element.tomselect) {
              element.tomselect.setValue(element.value, true);
              setTomSelectBorder(element.tomselect);
            }
        }else{
          console.error("[ThunderAI] Unhandled input type:", element.type);
        }
      }
    });
  }

  let getting = await browser.storage.sync.get(prefs_default);

  let specialPrompts = await getSpecialPrompts();
  let get_calendar_event_prompt = specialPrompts.find(prompt => prompt.id === 'prompt_get_calendar_event');

  if (get_calendar_event_prompt) {
      if (get_calendar_event_prompt.api_type && get_calendar_event_prompt.api_type !== '') {
          getting['get_calendar_event_connection_type'] = get_calendar_event_prompt.api_type;
      } else {
          getting['get_calendar_event_connection_type'] = getting['connection_type'];
      }
      for (const [integration, options] of Object.entries(integration_options_config)) {
          for (const key of Object.keys(options)) {
              const propName = `${integration}_${key}`;
              if (get_calendar_event_prompt[propName] !== undefined && get_calendar_event_prompt[propName] !== '') {
                  getting[`get_calendar_event_${propName}`] = get_calendar_event_prompt[propName];
              } else {
                  getting[`get_calendar_event_${propName}`] = getting[propName];
              }
          }
      }
  }

  setCurrentChoice(getting);
}