import type { ButtonComponent } from 'obsidian';
import { Modal, Notice, Setting, TextComponent, ToggleComponent } from 'obsidian';
import type MediaDbPlugin from '../main';
import type { AdvancedSearchModalData, AdvancedSearchModalOptions } from '../utils/ModalHelper';
import { ADVANCED_SEARCH_MODAL_DEFAULT_OPTIONS } from '../utils/ModalHelper';

export class MediaDbAdvancedSearchModal extends Modal {
	plugin: MediaDbPlugin;

	query: string;
	isBusy: boolean;
	title: string;
	selectedApis: string[];

	searchBtn?: ButtonComponent;

	submitCallback?: (res: AdvancedSearchModalData) => void;
	closeCallback?: (err?: Error) => void;

	constructor(plugin: MediaDbPlugin, advancedSearchModalOptions: AdvancedSearchModalOptions) {
		advancedSearchModalOptions = Object.assign({}, ADVANCED_SEARCH_MODAL_DEFAULT_OPTIONS, advancedSearchModalOptions);
		super(plugin.app);

		this.plugin = plugin;
		this.selectedApis = [];
		this.title = advancedSearchModalOptions.modalTitle ?? '';
		this.query = advancedSearchModalOptions.prefilledSearchString ?? '';
		this.isBusy = false;
	}

	setSubmitCallback(submitCallback: (res: AdvancedSearchModalData) => void): void {
		this.submitCallback = submitCallback;
	}

	setCloseCallback(closeCallback: (err?: Error) => void): void {
		this.closeCallback = closeCallback;
	}

	keyPressCallback(event: KeyboardEvent): void {
		if (event.key === 'Enter') {
			void this.search();
		}
	}

	async search(): Promise<void> {
		if (!this.query || this.query.length < 3) {
			new Notice('MDB | Query too short');
			return;
		}

		const apis: string[] = this.selectedApis;

		if (apis.length === 0) {
			new Notice('MDB | No API selected');
			return;
		}

		if (!this.isBusy) {
			this.isBusy = true;
			this.searchBtn?.setDisabled(false);
			this.searchBtn?.setButtonText('Searching...');

			this.submitCallback?.({ query: this.query, apis: apis });
		}
	}

	onOpen(): void {
		const { contentEl } = this;

		contentEl.createEl('h2', { text: this.title });

		const placeholder = 'Search by title';
		const searchComponent = new TextComponent(contentEl);
		searchComponent.inputEl.style.width = '100%';
		searchComponent.setPlaceholder(placeholder);
		searchComponent.setValue(this.query);
		searchComponent.onChange(value => (this.query = value));
		searchComponent.inputEl.addEventListener('keydown', this.keyPressCallback.bind(this));

		contentEl.appendChild(searchComponent.inputEl);
		searchComponent.inputEl.focus();

		contentEl.createDiv({ cls: 'media-db-plugin-spacer' });
		contentEl.createEl('h3', { text: 'APIs to search' });

		// const apiToggleComponents: Component[] = [];
		for (const api of this.plugin.apiManager.apis) {
			const apiToggleListElementWrapper = contentEl.createEl('div', { cls: 'media-db-plugin-list-wrapper' });

			const apiToggleTextWrapper = apiToggleListElementWrapper.createEl('div', { cls: 'media-db-plugin-list-text-wrapper' });
			apiToggleTextWrapper.createEl('span', { text: api.apiName, cls: 'media-db-plugin-list-text' });
			apiToggleTextWrapper.createEl('small', { text: api.apiDescription, cls: 'media-db-plugin-list-text' });

			const apiToggleComponentWrapper = apiToggleListElementWrapper.createEl('div', { cls: 'media-db-plugin-list-toggle' });

			const apiToggleComponent = new ToggleComponent(apiToggleComponentWrapper);
			apiToggleComponent.setTooltip(api.apiName);
			apiToggleComponent.setValue(this.selectedApis.some(x => x === api.apiName));
			apiToggleComponent.onChange(value => {
				if (value) {
					this.selectedApis.push(api.apiName);
				} else {
					this.selectedApis = this.selectedApis.filter(x => x !== api.apiName);
				}
			});
			apiToggleComponentWrapper.appendChild(apiToggleComponent.toggleEl);
		}

		contentEl.createDiv({ cls: 'media-db-plugin-spacer' });

		new Setting(contentEl)
			.addButton(btn => {
				btn.setButtonText('Cancel');
				btn.onClick(() => this.close());
				btn.buttonEl.addClass('media-db-plugin-button');
			})
			.addButton(btn => {
				btn.setButtonText('Ok');
				btn.setCta();
				btn.onClick(() => {
					void this.search();
				});
				btn.buttonEl.addClass('media-db-plugin-button');
				this.searchBtn = btn;
			});
	}

	onClose(): void {
		this.closeCallback?.();
		const { contentEl } = this;
		contentEl.empty();
	}
}