// Copyright 2022 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import chai from 'chai'; // not esm
import * as constant from '../src/constants';
import {ffxEventForTest, malformedLogForTest, symbolizedDataForTest} from './util';
import { FfxLogData, LogPayload } from '../src/log_data';
import { LogRow } from '../components/log_row';
import { messageForEvent } from '../src/format_log_text';
import {ffxLogToLogRowData} from '../src/ffxLogToLogRow';
import {State} from '../src/state';
import {LogColumnFormatter} from '../src/fields';

const columnFormatter: LogColumnFormatter = (_fieldName, text) => text;

before(() => {
  chai.should();
});

/**
 * Creates a fake log data to be used in tests.
 *
 * @param payload payload to use for the fake log data.
 * @returns a log data to use for testing.
 */
function logDataForTest(payload: LogPayload): FfxLogData {
  return {
    data: {
      // eslint-disable-next-line @typescript-eslint/naming-convention
      TargetLog: {
        moniker: 'core/foo',
        metadata: {
          errors: [],
          // eslint-disable-next-line @typescript-eslint/naming-convention
          component_url: 'fuchsia-pkg://fuchsia.com/foo#metafoo.cm',
          timestamp: 12345678900,
          severity: 'Info',
          tags: ['bar', 'baz'],
          pid: 123,
          tid: 456,
          file: 'foo/main.rs',
          line: 25,
        },
        payload,
      },
    },
    timestamp: 12345,
    version: 1
  };
};

describe('LogRow', () => {
  let state: State;
  beforeEach(() => {
    state = new State();
  });

  describe('#constructor', () => {
    it('adds title to to non-message cells', async () => {
      const logRow = new LogRow(ffxLogToLogRowData(
        logDataForTest({
          root: {
            message: {
              value: 'hello vscode',
            },
            keys: null,
            printf: null,
          }
        }), false)!, state.currentFields, columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      const testFields = [
        '000012.35',
        '123',
        '456',
        'core/foo',
        'bar,baz',
        'Info',
        'hello vscode'];
      let field: keyof typeof testFields;
      for (field in testFields) {
        if (testFields[field] === 'hello vscode') {
          return;
        }
        const logField = logRow.children[0].children[field] as HTMLElement;
        logField.title.should.equal(testFields[field]);
      }
      logRow.remove();
    });

    it('formats target logs', async () => {
      const logRow = new LogRow(ffxLogToLogRowData(
        logDataForTest({
          root: {
            message: {
              value: 'hello vscode',
            },
            keys: null,
            printf: null,
          }
        }), false)!, state.currentFields, columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      const testFields = [
        '000012.35',
        '123',
        '456',
        'core/foo',
        'bar,baz',
        'Info',
        'hello vscode'];
      let field: keyof typeof testFields;
      for (field in testFields) {
        const logField = logRow.children[0].children[field] as HTMLElement;
        logField.innerText.should.equal(testFields[field]);
      }
      logRow.remove();
    });

    it('formats html logs', async () => {
      const logRow = new LogRow(
        {fields: [{key: 'message', text: 'hello vscode'}]}
        , {
          'timestamp': {displayName: 'timestamp', width: ''},
          'pid': {displayName: 'pid', width: ''},
          'tid': {displayName: 'tid', width: ''},
          'tags': {displayName: 'tags', width: ''},
          'moniker': {displayName: 'moniker', width: ''},
          'severity': {displayName: 'severity', width: ''},
          'message': {displayName: 'messagepw', width: ''},
        }, (fieldName, text) => {
          const el = document.createElement('span');
          if (fieldName === 'message') {
            el.innerHTML = text.replace('vscode', '<b>vscode</b>');
          }
          return el;
        });
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      const msgField = logRow.children[0].children[6] as HTMLElement;
      msgField.querySelector('b')!.innerText.should.equal('vscode');
      logRow.remove();
    });

    it('formats structured logs', async () => {
      const logRow = new LogRow(ffxLogToLogRowData(
        logDataForTest({
          root: {
            message: {
              value: 'hello vscode',
            },
            keys: {
              os: 'fuchsia',
              number: 1,
            },
            printf: null,
          }
        }), false)!, state.currentFields, columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      const testFields =
        ['000012.35', '123', '456', 'core/foo', 'bar,baz',
          'Info', 'hello vscodeos=fuchsia number=1'];
      let field: keyof typeof testFields;
      for (field in testFields) {
        const logField = logRow.children[0].children[field] as HTMLElement;
        logField.innerText.should.equal(testFields[field]);
      }
      logRow.remove();
    });

    it('formats printf logs', async () => {
      const logRow = new LogRow(ffxLogToLogRowData(
        logDataForTest({
          root: {
            message: null,
            keys: null,
            printf: {
              format: '%s is #%d',
              args: ['Fuchsia', 1]
            },
          }
        }), false)!, state.currentFields, columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      const testFields =
        ['000012.35',
          '123',
          '456',
          'core/foo',
          'bar,baz',
          'Info',
          '%s is #%d args=[Fuchsia, 1]'];
      let field: keyof typeof testFields;
      for (field in testFields) {
        const logField = logRow.children[0].children[field] as HTMLElement;
        logField.innerText.should.equal(testFields[field]);
      }
      logRow.remove();
    });

    it('formats symbolized log', async () => {
      const logRow = new LogRow(ffxLogToLogRowData(
        symbolizedDataForTest({
          root: {
            message: {
              value: 'this is ignored',
            },
            keys: null,
            printf: null,
          }
        }), false)!, state.currentFields, columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      const testFields =
        ['000000.12', '123', '456', 'core/foo', 'my_tag', 'Info', 'symbolized'];
      let field: keyof typeof testFields;
      for (field in testFields) {
        const logField = logRow.children[0].children[field] as HTMLElement;
        logField.innerText.should.equal(testFields[field]);
      }
      logRow.remove();
    });

    it('formats logging started events', async () => {
      let logRow = new LogRow(
        ffxLogToLogRowData(
          ffxEventForTest('LoggingStarted'), false)!,
        state.currentFields,
        columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      let moniker = constant.FFX_MONIKER;
      let msg = messageForEvent('LoggingStarted', false);
      let monikerEl = logRow.children[0].children[3] as HTMLElement;
      let msgEl = logRow.children[0].children[6] as HTMLElement;

      monikerEl.innerText.should.equal(moniker);
      msgEl.innerText.should.equal(msg);
      logRow.remove();

      logRow = new LogRow(
        ffxLogToLogRowData(
          ffxEventForTest('LoggingStarted'), true)!,
        state.currentFields,
        columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      msg = messageForEvent('LoggingStarted', true);
      monikerEl = logRow.children[0].children[3] as HTMLElement;
      msgEl = logRow.children[0].children[6] as HTMLElement;

      monikerEl.innerText.should.equal(moniker);
      msgEl.innerText.should.equal(msg);
      logRow.remove();
    });

    it('formats target disconnected events', async () => {
      const logRow = new LogRow(
        ffxLogToLogRowData(
          ffxEventForTest('TargetDisconnected'), false)!,
        state.currentFields,
        columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      let moniker = constant.FFX_MONIKER;
      let msg = messageForEvent('TargetDisconnected', true);
      let monikerEl = logRow.children[0].children[3] as HTMLElement;
      let msgEl = logRow.children[0].children[6] as HTMLElement;

      monikerEl.innerText.should.equal(moniker);
      msgEl.innerText.should.equal(msg);
      logRow.remove();
    });

    it('formats malformed log', async () => {
      const logRow = new LogRow(
        ffxLogToLogRowData(
          malformedLogForTest('hello world'), false)!,
        state.currentFields,
        columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      let msg = 'Malformed target log: hello world';
      let msgEl = logRow.children[0].children[6] as HTMLElement;
      msgEl.innerText.should.equal(msg);
      logRow.remove();
    });

    it('formats viewer synthesized messages', async () => {
      const msg = 'Logs are cool';
      const data = {
        data: {
          // eslint-disable-next-line @typescript-eslint/naming-convention
          ViewerEvent: msg,
        },
        timestamp: 0,
        version: 0
      };
      const logRow = new LogRow(
        ffxLogToLogRowData(data, false)!, state.currentFields, columnFormatter);
      document.body.appendChild(logRow);
      await logRow.updateComplete;
      const monikerEl = logRow.children[0].children[3] as HTMLElement;
      const msgEl = logRow.children[0].children[6] as HTMLElement;
      monikerEl.innerText.should.equal(constant.VSCODE_SYNTHETIC_MONIKER);
      msgEl.innerText.should.equal(msg);
      logRow.remove();
    });
  });
});