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path: root/src/components/Content/Content.tsx
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import * as React from "react";
import { Dispatch, SetStateAction, useContext, useMemo } from "react";
import { Headers, RequestPayload, ResponsePayload } from "~hooks/useRequests";
import ReactJson from "react-json-view";
import styles from "~/components/Content/Content.module.scss";
import { Button, Col, Container, Row } from "react-bootstrap";
import { SettingsContext } from "~/contexts/Settings";

function getHeader(
  headers: Headers,
  key: string,
  unit?: string
): string | null {
  try {
    const [_, value] = headers.find(
      ([headerKey]) => headerKey.toLowerCase() === key.toLowerCase()
    );
    return unit !== undefined ? `${value}${unit}` : value;
  } catch {
    return null;
  }
}

interface ContentProps {
  data: RequestPayload | ResponsePayload;
  setRaw: Dispatch<SetStateAction<boolean>>;
  raw?: boolean;
}

export default function Content({
  raw,
  setRaw,
  data,
}: ContentProps): JSX.Element {
  return (
    <div className={styles.content}>
      <Container fluid className="border-bottom">
        <Row className="py-3">
          <Col className="form-check form-switch ms-3">
            <input
              className="form-check-input"
              id="raw"
              type="checkbox"
              checked={raw}
              role="switch"
              onChange={() => setRaw(!raw)}
            />
            <label htmlFor="raw" className="form-check-label">
              Raw
            </label>
          </Col>
          <Col xs="auto">
            {[
              getHeader(data.headers, "content-length", "bytes"),
              getHeader(data.headers, "content-type"),
            ]
              .filter((x) => x !== null)
              .join("; ")}
          </Col>
        </Row>
      </Container>
      <Row className={styles.body}>
        {(() => {
          try {
            return ContentBody({ data, raw });
          } catch {
            return (
              <div className={styles.renderError}>
                <p>Body could not be rendered</p>
                <Button variant="link" onClick={() => setRaw(true)}>
                  View raw
                </Button>
              </div>
            );
          }
        })()}
      </Row>
    </div>
  );
}

function ContentBody({ data, raw = false }: Omit<ContentProps, "setRaw">) {
  const { darkMode } = useContext(SettingsContext);
  const contentType = useMemo(() => {
    if (raw) {
      return "";
    }

    const type = getHeader(data.headers, "content-type");
    return type?.toLowerCase().split(";")[0];
  }, [data, raw]);

  if (raw) {
    return (
      <pre className="mb-0">
        <code>{atob(data.body)}</code>
      </pre>
    );
  }

  if (
    contentType !== undefined &&
    ["application/pdf", "text/html"].includes(contentType)
  ) {
    return (
      <iframe
        className="bg-white"
        src={`data:${contentType};base64,${data.body}`}
        srcDoc={contentType === "text/html" ? atob(data.body) : undefined}
        loading="lazy"
        sandbox=""
      />
    );
  }

  if (contentType?.startsWith("application/json")) {
    return (
      <ReactJson
        src={JSON.parse(atob(data.body))}
        theme={darkMode ? "monokai" : undefined}
        style={{
          padding: "1em",
          width: "100%",
          height: "100%",
          overflowY: "auto",
        }}
      />
    );
  }

  if (contentType?.startsWith("audio")) {
    return <audio src={`data:${contentType};base64,${data.body}`} />;
  }

  if (contentType?.startsWith("video")) {
    return <video src={`data:${contentType};base64,${data.body}`} />;
  }

  if (contentType?.startsWith("image")) {
    return <img src={`data:${contentType};base64,${data.body}`} alt="" />;
  }

  throw new Error("Not Rendered");
}