Add info tooltips to logs that have been sampled by adaptive logs (#89320)

* Add info tooltips to logs that have been sampled by adaptive logs

* review commends and linter changes

* make warnings match info

* fix betterer results

.betterer.results

@@ -4702,8 +4702,7 @@ exports[`better eslint`] = {
       [0, 0, 0, "Styles should be written using objects.", "31"],
       [0, 0, 0, "Styles should be written using objects.", "32"],
       [0, 0, 0, "Styles should be written using objects.", "33"],
-      [0, 0, 0, "Styles should be written using objects.", "34"],
-      [0, 0, 0, "Styles should be written using objects.", "35"]
+      [0, 0, 0, "Styles should be written using objects.", "34"]
     ],
     "public/app/features/logs/components/log-context/LogContextButtons.tsx:5381": [
       [0, 0, 0, "No untranslated strings. Wrap text with <Trans />", "0"]

public/app/features/logs/components/LogRow.tsx

@@ -17,7 +17,7 @@ import { reportInteraction } from '@grafana/runtime';
 import { DataQuery, TimeZone } from '@grafana/schema';
 import { withTheme2, Themeable2, Icon, Tooltip, PopoverContent } from '@grafana/ui';
 
-import { checkLogsError, escapeUnescapedString } from '../utils';
+import { checkLogsError, escapeUnescapedString, checkLogsSampled } from '../utils';
 
 import { LogDetails } from './LogDetails';
 import { LogLabels } from './LogLabels';
@@ -222,6 +222,7 @@ class UnThemedLogRow extends PureComponent<Props, State> {
     const { showDetails, showingContext, permalinked } = this.state;
     const levelStyles = getLogLevelStyles(theme, row.logLevel);
     const { errorMessage, hasError } = checkLogsError(row);
+    const { sampleMessage, isSampled } = checkLogsSampled(row);
     const logRowBackground = cx(styles.logsRow, {
       [styles.errorLogRow]: hasError,
       [styles.highlightBackground]: showingContext || permalinked,
@@ -255,13 +256,22 @@ class UnThemedLogRow extends PureComponent<Props, State> {
             </td>
           )}
           <td
-            className={hasError ? styles.logsRowWithError : `${levelStyles.logsRowLevelColor} ${styles.logsRowLevel}`}
+            className={
+              hasError || isSampled
+                ? styles.logsRowWithError
+                : `${levelStyles.logsRowLevelColor} ${styles.logsRowLevel}`
+            }
           >
             {hasError && (
               <Tooltip content={`Error: ${errorMessage}`} placement="right" theme="error">
                 <Icon className={styles.logIconError} name="exclamation-triangle" size="xs" />
               </Tooltip>
             )}
+            {isSampled && (
+              <Tooltip content={`${sampleMessage}`} placement="right" theme="info">
+                <Icon className={styles.logIconInfo} name="info-circle" size="xs" />
+              </Tooltip>
+            )}
           </td>
           <td
             title={enableLogDetails ? (showDetails ? 'Hide log details' : 'See log details') : ''}

public/app/features/logs/components/getLogRowStyles.ts

@@ -117,9 +117,16 @@ export const getLogRowStyles = memoizeOne((theme: GrafanaTheme2) => {
       width: 4em;
       cursor: default;
     `,
-    logIconError: css`
-      color: ${theme.colors.warning.main};
-    `,
+    logIconError: css({
+      color: theme.colors.warning.main,
+      position: 'relative',
+      top: '-2px',
+    }),
+    logIconInfo: css({
+      color: theme.colors.info.main,
+      position: 'relative',
+      top: '-2px',
+    }),
     logsRowToggleDetails: css`
       label: logs-row-toggle-details__level;
       font-size: 9px;

public/app/features/logs/utils.ts

@@ -154,6 +154,22 @@ export const checkLogsError = (logRow: LogRowModel): { hasError: boolean; errorM
   };
 };
 
+export const checkLogsSampled = (logRow: LogRowModel): { isSampled: boolean; sampleMessage?: string } => {
+  if (logRow.labels.__adaptive_logs_sampled__) {
+    let msg =
+      logRow.labels.__adaptive_logs_sampled__ === 'true'
+        ? 'Logs like this one have been dropped by Adaptive Logs'
+        : `${logRow.labels.__adaptive_logs_sampled__}% of logs like this one have been dropped by Adaptive Logs`;
+    return {
+      isSampled: true,
+      sampleMessage: msg,
+    };
+  }
+  return {
+    isSampled: false,
+  };
+};
+
 export const escapeUnescapedString = (string: string) =>
   string.replace(/\\r\\n|\\n|\\t|\\r/g, (match: string) => (match.slice(1) === 't' ? '\t' : '\n'));