import LeftArrowIcon from "@Assets/Icons/left-arrow.svg";
import RightArrowIcon from "@Assets/Icons/right-arrow.svg";
import Documents from "@Front/Api/LeCoffreApi/Notary/Documents/Documents";
import ValidateAnchoringGif from "@Front/Assets/images/validate_anchoring.gif";
import Button, { EButtonVariant } from "@Front/Components/DesignSystem/Button";
import CheckBox from "@Front/Components/DesignSystem/CheckBox";
import FilePreview from "@Front/Components/DesignSystem/FilePreview";
import Confirm from "@Front/Components/DesignSystem/Modal/Confirm";
import Typography, { ITypo, ITypoColor } from "@Front/Components/DesignSystem/Typography";
import DefaultNotaryDashboard from "@Front/Components/LayoutTemplates/DefaultNotaryDashboard";
import Module from "@Front/Config/Module";
import { Document, File } from "le-coffre-resources/dist/Notary";
import { EDocumentStatus } from "le-coffre-resources/dist/Notary/Document";
import Image from "next/image";
import { NextRouter, useRouter } from "next/router";
import React from "react";

import BasePage from "../../Base";
import classes from "./classes.module.scss";
import OcrResult from "./OcrResult";
import Files from "@Front/Api/LeCoffreApi/SuperAdmin/Files/Files";
import TextAreaField from "@Front/Components/DesignSystem/Form/TextareaField";

type IProps = {};
type IPropsClass = {
	documentUid: string;
	router: NextRouter;
	folderUid: string;
};

type IState = {
	isRefuseModalVisible: boolean;
	isValidateModalVisible: boolean;
	refuseText: string;
	hasValidateAnchoring: boolean;
	selectedFileIndex: number;
	selectedFile: File | null;
	validatedPercentage: number;
	document: Document | null;
};

class ViewDocumentsClass extends BasePage<IPropsClass, IState> {
	public constructor(props: IPropsClass) {
		super(props);

		this.state = {
			isValidateModalVisible: false,
			isRefuseModalVisible: false,
			refuseText: "",
			hasValidateAnchoring: false,
			selectedFileIndex: 0,
			selectedFile: null,
			validatedPercentage: this.getRandomPercentageForOcr(),
			document: null,
		};

		this.closeModals = this.closeModals.bind(this);
		this.openValidateModal = this.openValidateModal.bind(this);
		this.openRefuseModal = this.openRefuseModal.bind(this);
		this.onRefuseTextChange = this.onRefuseTextChange.bind(this);
		this.validateAnchoring = this.validateAnchoring.bind(this);
		this.goToNext = this.goToNext.bind(this);
		this.goToPrevious = this.goToPrevious.bind(this);

		this.hasPrevious = this.hasPrevious.bind(this);
		this.hasNext = this.hasNext.bind(this);
		this.downloadFile = this.downloadFile.bind(this);
		this.refuseDocument = this.refuseDocument.bind(this);
	}

	public override render(): JSX.Element | null {
		return (
			<DefaultNotaryDashboard title={"Demander des documents"} hasBackArrow mobileBackText="Retour aux documents">
				{this.state.document && this.state.document.files && this.state.selectedFile && (
					<div className={classes["root"]}>
						<Typography typo={ITypo.H1} color={ITypoColor.BLACK} className={classes["title"]}>
							{this.state.document.folder?.name}
						</Typography>
						<Typography typo={ITypo.H3} color={ITypoColor.BLACK} className={classes["subtitle"]}>
							{this.state.document.document_type?.name}
						</Typography>
						<div className={classes["document-container"]}>
							{this.state.document.files.length > 1 && (
								<div
									className={classes["arrow-container"]}
									onClick={this.goToPrevious}
									data-disabled={(!this.hasPrevious()).toString()}>
									<Image src={LeftArrowIcon} alt="left arrow" />
								</div>
							)}
							<div className={classes["file-container"]}>
								<FilePreview
									href={Files.getInstance().getUploadLink(this.state.selectedFile?.uid as string)}
									fileName={this.state.selectedFile.file_name}
									key={this.state.selectedFile.uid}
								/>
							</div>
							{this.state.document.files.length > 1 && (
								<div
									className={classes["arrow-container"]}
									onClick={this.goToNext}
									data-disabled={(!this.hasNext()).toString()}>
									<Image src={RightArrowIcon} alt="right arrow" />
								</div>
							)}
						</div>
						<div className={classes["footer"]}>
							{this.state.document?.document_type?.name === "Document d'identité" && (
								<div className={classes["ocr-container"]}>
									<OcrResult percentage={this.state.validatedPercentage} />
								</div>
							)}

							<div className={classes["buttons-container"]}>
								{this.state.document?.document_status === EDocumentStatus.DEPOSITED && (
									<>
										<Button variant={EButtonVariant.GHOST} onClick={this.openRefuseModal}>
											Refuser
										</Button>
										<Button onClick={this.openValidateModal}>Valider et ancrer</Button>
										<Button disabled>Télécharger</Button>
									</>
								)}
								{this.state.document?.document_status === "VALIDATED" && (
									<Button onClick={this.downloadFile}>Télécharger</Button>
								)}
							</div>
						</div>
						<Confirm
							isOpen={this.state.isValidateModalVisible}
							onClose={this.closeModals}
							onAccept={this.validateAnchoring}
							closeBtn={true}
							hasContainerClosable={true}
							header={this.state.hasValidateAnchoring ? "Document en cours de validation" : "Ancrer le document"}
							cancelText={"Annuler"}
							confirmText={"Confirmer"}
							showButtons={!this.state.hasValidateAnchoring}>
							<div className={classes["validate-document-container"]}>
								{!this.state.hasValidateAnchoring && (
									<Typography typo={ITypo.P_16} color={ITypoColor.BLACK} className={classes["validate-text"]}>
										Êtes-vous sûr de vouloir ancrer ce document ?
									</Typography>
								)}
								{this.state.hasValidateAnchoring && (
									<div className={classes["document-validating-container"]}>
										<Typography typo={ITypo.P_16} color={ITypoColor.BLACK} className={classes["validate-text"]}>
											Le document s'ancre dans la blockchain.
										</Typography>
										<Image src={ValidateAnchoringGif} alt="Anchoring animation" className={classes["validate-gif"]} />
										<div className={classes["dont-show-again"]}>
											<CheckBox option={{ label: "Ne plus afficher ce message", value: false }} />
										</div>
									</div>
								)}
							</div>
						</Confirm>
						<Confirm
							isOpen={this.state.isRefuseModalVisible}
							onClose={this.closeModals}
							onAccept={this.refuseDocument}
							closeBtn
							header={"Refuser le document ?"}
							cancelText={"Annuler"}
							confirmText={"Refuser"}>
							<div className={classes["refuse-document-container"]}>
								<Typography typo={ITypo.P_16} color={ITypoColor.BLACK} className={classes["refuse-text"]}>
									Veuillez indiquer au client le motif du refus de son document afin qu'il puisse vous renvoyer une bonne
									version.
								</Typography>
								<TextAreaField placeholder="Motif du refus" onChange={this.onRefuseTextChange} />
							</div>
						</Confirm>
					</div>
				)}
				{(!this.state.selectedFile || !this.state.document) && (
					<div className={classes["root"]}>
						<Typography typo={ITypo.P_16} color={ITypoColor.BLACK} className={classes["refuse-text"]}>
							Document non trouvé
						</Typography>
					</div>
				)}
			</DefaultNotaryDashboard>
		);
	}

	override async componentDidMount() {
		try {
			const document = await Documents.getInstance().getByUid(this.props.documentUid, {
				files: {
					where: { archived_at: null },
				},
				document_type: true,
				folder: true,
			});
			this.setState({
				document,
				selectedFileIndex: 0,
				selectedFile: document.files![0]!,
			});
		} catch (e) {
			console.error(e);
		}
	}

	private downloadFile() {
		const fileName = this.state.selectedFile?.file_path?.split("/").pop();
		fetch(Files.getInstance().getUploadLink(this.state.selectedFile?.uid as string))
			.then((resp) => resp.blob())
			.then((blob) => {
				const url = window.URL.createObjectURL(blob);
				const a = document.createElement("a");
				a.style.display = "none";
				a.href = url;
				// the filename you want
				a.download = fileName as string;
				document.body.appendChild(a);
				a.click();
				window.URL.revokeObjectURL(url);
			})
			.catch((e) => {
				const a = document.createElement("a");
				a.href = this.state.selectedFile?.file_path as string;
				a.target = "_blank";
				a.click();
				console.error(e);
			});
	}

	private getRandomPercentageForOcr() {
		// find diff
		let difference = 100 - 90;

		// generate random number
		let rand = Math.random();

		// multiply with difference
		rand = Math.floor(rand * difference);

		// add with min value
		rand = rand + 90;

		return rand;
	}

	private goToPrevious() {
		const index = this.state.selectedFileIndex - 1;
		if (this.hasPrevious()) {
			this.setState({
				selectedFile: this.state.document!.files![index]!,
				selectedFileIndex: index,
			});
		}
	}

	private goToNext() {
		if (this.hasNext()) {
			const index = this.state.selectedFileIndex + 1;
			this.setState({
				selectedFile: this.state.document!.files![index]!,
				selectedFileIndex: index,
			});
		}
	}

	private hasPrevious() {
		const index = this.state.selectedFileIndex - 1;
		return index >= 0;
	}

	private hasNext() {
		const index = this.state.selectedFileIndex + 1;
		return index < this.state.document!.files!.length;
	}

	private async refuseDocument() {
		try {
			await Documents.getInstance().put(this.props.documentUid, {
				document_status: EDocumentStatus.REFUSED,
				refused_reason: this.state.refuseText,
			});

			this.props.router.push(
				Module.getInstance()
					.get()
					.modules.pages.Folder.pages.FolderInformation.props.path.replace("[folderUid]", this.props.folderUid),
			);
		} catch (e) {
			console.error(e);
		}
	}

	private async validateAnchoring() {
		this.setState({
			hasValidateAnchoring: true,
		});

		try {
			await Documents.getInstance().put(this.props.documentUid, {
				document_status: EDocumentStatus.VALIDATED,
			});

			const timeoutDelay = 9800;
			setTimeout(() => {
				this.setState({
					isValidateModalVisible: false,
				});
				this.props.router.push(
					Module.getInstance()
						.get()
						.modules.pages.Folder.pages.FolderInformation.props.path.replace("[folderUid]", this.props.folderUid),
				);
			}, timeoutDelay);

			setTimeout(() => {
				this.setState({
					hasValidateAnchoring: false,
				});
			}, timeoutDelay + 1000);
		} catch (e) {
			console.error(e);
		}
	}

	private onRefuseTextChange(e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement | HTMLSelectElement>) {
		this.setState({
			refuseText: e.target.value,
		});
	}

	private openValidateModal() {
		this.setState({
			isValidateModalVisible: true,
		});
	}

	private openRefuseModal() {
		this.setState({
			isRefuseModalVisible: true,
		});
	}

	private closeModals() {
		this.setState({
			isValidateModalVisible: false,
			isRefuseModalVisible: false,
		});
	}
}

export default function ViewDocuments(props: IProps) {
	const router = useRouter();
	let { folderUid, documentUid } = router.query;
	documentUid = documentUid as string;
	folderUid = folderUid as string;
	return <ViewDocumentsClass {...props} documentUid={documentUid} router={router} folderUid={folderUid as string} />;
}