import * as React from "react";
import StackTrace from "stacktrace-js";
import {CircularProgress, Link} from "@mui/material";
import Button from "@mui/material/Button";
import {Trans, withTranslation} from "react-i18next";

class ErrorBoundaryImpl extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            error: false,
            originalStack: null,
            niceStack: null,
            unsupportedIndexedDB: false
        };
    }

    componentDidCatch(error, info) {
        console.error("[ErrorBoundary] Error caught", error, info);

        // Special case for unsupported IndexedDB in Private Browsing mode (Firefox, Safari), see
        // - https://github.com/dexie/Dexie.js/issues/312
        // - https://bugzilla.mozilla.org/show_bug.cgi?id=781982
        const isUnsupportedIndexedDB = error?.name === "InvalidStateError" ||
            (error?.name === "DatabaseClosedError" && error?.message?.indexOf("InvalidStateError") !== -1);

        if (isUnsupportedIndexedDB) {
            this.handleUnsupportedIndexedDB();
        } else {
            this.handleError(error, info);
        }
    }

    handleError(error, info) {
        // Immediately render original stack trace
        const prettierOriginalStack = info.componentStack
            .trim()
            .split("\n")
            .map(line => `  at ${line}`)
            .join("\n");
        this.setState({
            error: true,
            originalStack: `${error.toString()}\n${prettierOriginalStack}`
        });

        // Fetch additional info and a better stack trace
        StackTrace.fromError(error).then(stack => {
            console.error("[ErrorBoundary] Stacktrace fetched", stack);
            const niceStack = `${error.toString()}\n` + stack.map( el => `  at ${el.functionName} (${el.fileName}:${el.columnNumber}:${el.lineNumber})`).join("\n");
            this.setState({ niceStack });
        });
    }

    handleUnsupportedIndexedDB() {
        this.setState({
            error: true,
            unsupportedIndexedDB: true
        });
    }

    copyStack() {
        let stack = "";
        if (this.state.niceStack) {
            stack += `${this.state.niceStack}\n\n`;
        }
        stack += `${this.state.originalStack}\n`;
        navigator.clipboard.writeText(stack);
    }

    render() {
        if (this.state.error) {
            if (this.state.unsupportedIndexedDB) {
                return this.renderUnsupportedIndexedDB();
            } else {
                return this.renderError();
            }
        }
        return this.props.children;
    }

    renderUnsupportedIndexedDB() {
        const { t } = this.props;
        return (
            <div style={{margin: '20px'}}>
                <h2>{t("error_boundary_unsupported_indexeddb_title")} 😮</h2>
                <p style={{maxWidth: "600px"}}>
                    <Trans
                        i18nKey="error_boundary_unsupported_indexeddb_description"
                        components={{
                            githubLink: <Link href="https://github.com/binwiederhier/ntfy/issues/208"/>,
                            discordLink: <Link href="https://discord.gg/cT7ECsZj9w"/>,
                            matrixLink: <Link href="https://matrix.to/#/#ntfy:matrix.org"/>
                        }}
                    />
                </p>
            </div>
        );
    }

    renderError() {
        const { t } = this.props;
        return (
            <div style={{margin: '20px'}}>
                <h2>{t("error_boundary_title")} 😮</h2>
                <p>
                    <Trans
                        i18nKey="error_boundary_description"
                        components={{
                            githubLink: <Link href="https://github.com/binwiederhier/ntfy/issues"/>,
                            discordLink: <Link href="https://discord.gg/cT7ECsZj9w"/>,
                            matrixLink: <Link href="https://matrix.to/#/#ntfy:matrix.org"/>
                        }}
                    />
                </p>
                <p>
                    <Button variant="outlined" onClick={() => this.copyStack()}>{t("error_boundary_button_copy_stack_trace")}</Button>
                </p>
                <h3>{t("error_boundary_stack_trace")}</h3>
                {this.state.niceStack
                    ? <pre>{this.state.niceStack}</pre>
                    : <><CircularProgress size="20px" sx={{verticalAlign: "text-bottom"}}/> {t("error_boundary_gathering_info")}</>}
                <pre>{this.state.originalStack}</pre>
            </div>
        );
    }
}

const ErrorBoundary = withTranslation()(ErrorBoundaryImpl); // Adds props.t
export default ErrorBoundary;