import discourseComputed, { observes } from "discourse-common/utils/decorators";
import Component from "@ember/component";
import I18n from "I18n";
import WatchedWord from "admin/models/watched-word";
import { equal } from "@ember/object/computed";
import { isEmpty } from "@ember/utils";
import { schedule } from "@ember/runloop";
import { inject as service } from "@ember/service";

export default Component.extend({
  tagName: "form",
  dialog: service(),
  classNames: ["watched-word-form"],
  formSubmitted: false,
  actionKey: null,
  showMessage: false,
  selectedTags: null,
  isCaseSensitive: false,

  canReplace: equal("actionKey", "replace"),
  canTag: equal("actionKey", "tag"),
  canLink: equal("actionKey", "link"),

  didInsertElement() {
    this._super(...arguments);
    this.set("selectedTags", []);
  },

  @discourseComputed("siteSettings.watched_words_regular_expressions")
  placeholderKey(watchedWordsRegularExpressions) {
    if (watchedWordsRegularExpressions) {
      return "admin.watched_words.form.placeholder_regexp";
    } else {
      return "admin.watched_words.form.placeholder";
    }
  },

  @observes("word")
  removeMessage() {
    if (this.showMessage && !isEmpty(this.word)) {
      this.set("showMessage", false);
    }
  },

  @discourseComputed("word")
  isUniqueWord(word) {
    const words = this.filteredContent || [];
    const filtered = words.filter(
      (content) => content.action === this.actionKey
    );
    return filtered.every((content) => {
      if (content.case_sensitive === true) {
        return content.word !== word;
      }
      return content.word.toLowerCase() !== word.toLowerCase();
    });
  },

  focusInput() {
    schedule("afterRender", () => this.element.querySelector("input").focus());
  },

  actions: {
    changeSelectedTags(tags) {
      this.setProperties({
        selectedTags: tags,
        replacement: tags.join(","),
      });
    },

    submit() {
      if (!this.isUniqueWord) {
        this.setProperties({
          showMessage: true,
          message: I18n.t("admin.watched_words.form.exists"),
        });
        return;
      }

      if (!this.formSubmitted) {
        this.set("formSubmitted", true);

        const watchedWord = WatchedWord.create({
          word: this.word,
          replacement:
            this.canReplace || this.canTag || this.canLink
              ? this.replacement
              : null,
          action: this.actionKey,
          isCaseSensitive: this.isCaseSensitive,
        });

        watchedWord
          .save()
          .then((result) => {
            this.setProperties({
              word: "",
              replacement: "",
              formSubmitted: false,
              selectedTags: [],
              showMessage: true,
              message: I18n.t("admin.watched_words.form.success"),
              isCaseSensitive: false,
            });
            this.action(WatchedWord.create(result));
            this.focusInput();
          })
          .catch((e) => {
            this.set("formSubmitted", false);
            const message = e.jqXHR.responseJSON?.errors
              ? I18n.t("generic_error_with_reason", {
                  error: e.jqXHR.responseJSON.errors.join(". "),
                })
              : I18n.t("generic_error");
            this.dialog.alert({
              message,
              didConfirm: () => this.focusInput(),
              didCancel: () => this.focusInput(),
            });
          });
      }
    },
  },
});