/**
 * Copyright (c) 650 Industries.
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
import React, { useCallback, useEffect, useState } from 'react';
import { ScrollView, View, StyleSheet } from 'react-native';

import * as LogBoxData from './Data/LogBoxData';
import { LogBoxLog, StackType } from './Data/LogBoxLog';
import { useLogs, useSelectedLog } from './Data/LogContext';
import * as LogBoxStyle from './UI/LogBoxStyle';
import { LogBoxInspectorCodeFrame } from './overlay/LogBoxInspectorCodeFrame';
import { LogBoxInspectorFooter as ErrorOverlayFooter } from './overlay/LogBoxInspectorFooter';
import { LogBoxInspectorHeader as ErrorOverlayHeader } from './overlay/LogBoxInspectorHeader';
import { LogBoxInspectorMessageHeader } from './overlay/LogBoxInspectorMessageHeader';
import { LogBoxInspectorStackFrames } from './overlay/LogBoxInspectorStackFrames';

const HEADER_TITLE_MAP = {
  warn: 'Console Warning',
  error: 'Console Error',
  fatal: 'Uncaught Error',
  syntax: 'Syntax Error',
  static: 'Server Error',
  component: 'Render Error',
};

export function LogBoxInspectorContainer() {
  const { selectedLogIndex, logs } = useLogs();
  const log = logs[selectedLogIndex];
  if (log == null) {
    return null;
  }
  return <LogBoxInspector log={log} selectedLogIndex={selectedLogIndex} logs={logs} />;
}

export function LogBoxInspector({
  log,
  selectedLogIndex,
  logs,
}: {
  log: LogBoxLog;
  selectedLogIndex: number;
  logs: LogBoxLog[];
}) {
  const onDismiss = useCallback((): void => {
    // Here we handle the cases when the log is dismissed and it
    // was either the last log, or when the current index
    // is now outside the bounds of the log array.
    const logsArray = Array.from(logs);
    if (selectedLogIndex != null) {
      if (logsArray.length - 1 <= 0) {
        LogBoxData.setSelectedLog(-1);
      } else if (selectedLogIndex >= logsArray.length - 1) {
        LogBoxData.setSelectedLog(selectedLogIndex - 1);
      }

      LogBoxData.dismiss(logsArray[selectedLogIndex]);
    }
  }, [selectedLogIndex]);

  const onMinimize = useCallback((): void => {
    LogBoxData.setSelectedLog(-1);
  }, []);

  const onChangeSelectedIndex = useCallback((index: number): void => {
    LogBoxData.setSelectedLog(index);
  }, []);

  useEffect(() => {
    if (log) {
      LogBoxData.symbolicateLogNow('stack', log);
      LogBoxData.symbolicateLogNow('component', log);
    }
  }, [log]);

  useEffect(() => {
    // Optimistically symbolicate the last and next logs.
    if (logs.length > 1) {
      const selected = selectedLogIndex;
      const lastIndex = logs.length - 1;
      const prevIndex = selected - 1 < 0 ? lastIndex : selected - 1;
      const nextIndex = selected + 1 > lastIndex ? 0 : selected + 1;
      for (const type of ['component', 'stack'] as const) {
        LogBoxData.symbolicateLogLazy(type, logs[prevIndex]);
        LogBoxData.symbolicateLogLazy(type, logs[nextIndex]);
      }
    }
  }, [logs, selectedLogIndex]);

  const _handleRetry = useCallback(
    (type: StackType) => {
      LogBoxData.retrySymbolicateLogNow(type, log);
    },
    [log]
  );

  return (
    <View style={styles.container}>
      <ErrorOverlayHeader onSelectIndex={onChangeSelectedIndex} level={log.level} />
      <ErrorOverlayBody onRetry={_handleRetry} />
      <ErrorOverlayFooter onDismiss={onDismiss} onMinimize={onMinimize} />
    </View>
  );
}

export function ErrorOverlayBody({ onRetry }: { onRetry: (type: StackType) => void }) {
  const log = useSelectedLog();
  return <ErrorOverlayBodyContents log={log} onRetry={onRetry} />;
}

export function ErrorOverlayBodyContents({
  log,
  onRetry,
}: {
  log: LogBoxLog;
  onRetry: (type: StackType) => void;
}) {
  const [collapsed, setCollapsed] = useState(true);

  useEffect(() => {
    setCollapsed(true);
  }, [log]);

  const headerTitle = HEADER_TITLE_MAP[log.isComponentError ? 'component' : log.level] ?? log.type;

  const header = (
    <LogBoxInspectorMessageHeader
      collapsed={collapsed}
      onPress={() => setCollapsed(!collapsed)}
      message={log.message}
      level={log.level}
      title={headerTitle}
    />
  );

  // Hide useless React stack.
  const needsStack = !log.message.content.match(
    /(Expected server HTML to contain a matching|Text content did not match\.)/
  );

  return (
    <>
      {collapsed && header}
      <ScrollView style={styles.scrollBody}>
        {!collapsed && header}

        <LogBoxInspectorCodeFrame codeFrame={log.codeFrame} />
        {needsStack && (
          <LogBoxInspectorStackFrames
            type="stack"
            // eslint-disable-next-line react/jsx-no-bind
            onRetry={onRetry.bind(onRetry, 'stack')}
          />
        )}
        {!!log?.componentStack?.length && (
          <LogBoxInspectorStackFrames
            type="component"
            // eslint-disable-next-line react/jsx-no-bind
            onRetry={onRetry.bind(onRetry, 'component')}
          />
        )}
      </ScrollView>
    </>
  );
}

const styles = StyleSheet.create({
  scrollBody: {
    backgroundColor: LogBoxStyle.getBackgroundColor(1),
    flex: 1,
  },
  container: {
    top: 0,
    left: 0,
    bottom: 0,
    right: 0,
    zIndex: 999,
    flex: 1,
    // @ts-expect-error: fixed is not in the RN types but it works on web
    position: 'fixed',
  },
});

export default LogBoxData.withSubscription(LogBoxInspectorContainer);