Logging in webUI, Archive view refactor (#127)

* test logging * test impl for logging * implemented "live logging", restyle templates dropdown * moved extract audio to downloadDialog, fixed labels * code refactoring * buffering logs
2024-01-09 14:29:18 +01:00
parent de1d9e6a3c
commit 6aa2d41988
25 changed files with 630 additions and 112 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,4 @@ session.dat
 config.yml
 cookies.txt
 __debug*
+ui/
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -13,6 +13,7 @@
    "@emotion/react": "^11.11.1",
    "@emotion/styled": "^11.11.0",
    "@fontsource/roboto": "^5.0.6",
+    "@fontsource/roboto-mono": "^5.0.16",
    "@mui/icons-material": "^5.11.16",
    "@mui/material": "^5.13.5",
    "fp-ts": "^2.16.1",
--- a/frontend/pnpm-lock.yaml
+++ b/frontend/pnpm-lock.yaml
@@ -14,6 +14,9 @@ dependencies:
  '@fontsource/roboto':
    specifier: ^5.0.6
    version: 5.0.6
+  '@fontsource/roboto-mono':
+    specifier: ^5.0.16
+    version: 5.0.16
  '@mui/icons-material':
    specifier: ^5.11.16
    version: 5.11.16(@mui/material@5.13.5)(@types/react@18.2.29)(react@18.2.0)
@@ -433,6 +436,10 @@ packages:
    dev: true
    optional: true

+  /@fontsource/roboto-mono@5.0.16:
+    resolution: {integrity: sha512-unZYfjXts55DQyODz0I9DzbSrS5DRKPNq9crJpNJe/Vy818bLnijprcJv3fvqwdDqTT0dRm2Fhk09QEIdtAc+Q==}
+    dev: false
+
  /@fontsource/roboto@5.0.6:
    resolution: {integrity: sha512-SksyUGbdqY7a71l/ywdX5fm37fepCakgHZEZ3H4uP5A9wDJewrcSACtIzw6yi9QjJIYoj1xArhDSOz4XJxyWow==}
    dev: false
--- a/frontend/src/Layout.tsx
+++ b/frontend/src/Layout.tsx
@@ -29,6 +29,7 @@ import SocketSubscriber from './components/SocketSubscriber'
 import ThemeToggler from './components/ThemeToggler'
 import { useI18n } from './hooks/useI18n'
 import Toaster from './providers/ToasterProvider'
+import TerminalIcon from '@mui/icons-material/Terminal'

 export default function Layout() {
  const [open, setOpen] = useState(false)
@@ -138,6 +139,19 @@ export default function Layout() {
                <ListItemText primary={i18n.t('archiveButtonLabel')} />
              </ListItemButton>
            </Link>
+            <Link to={'/log'} style={
+              {
+                textDecoration: 'none',
+                color: mode === 'dark' ? '#ffffff' : '#000000DE'
+              }
+            }>
+              <ListItemButton>
+                <ListItemIcon>
+                  <TerminalIcon />
+                </ListItemIcon>
+                <ListItemText primary={i18n.t('logsTitle')} />
+              </ListItemButton>
+            </Link>
            <Link to={'/settings'} style={
              {
                textDecoration: 'none',
--- a/frontend/src/assets/i18n.yaml
+++ b/frontend/src/assets/i18n.yaml
@@ -47,6 +47,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  german:
    urlInput: Video URL
    statusTitle: Status
@@ -94,6 +96,8 @@ languages:
    templatesEditor: Vorlagen Bearbeiter
    templatesEditorNameLabel: Vorlagen Name
    templatesEditorContentLabel: Vorlagen Inhalt
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  french:
    urlInput: URL vidéo de YouTube ou d'un autre service pris en charge
    statusTitle: Statut
@@ -143,6 +147,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  italian:
    urlInput: URL Video
    statusTitle: Stato
@@ -189,6 +195,8 @@ languages:
    templatesEditor: Editor template
    templatesEditorNameLabel: Nome template
    templatesEditorContentLabel: Contentunto template
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  chinese:
    urlInput: YouTube 或其他受支持服务的视频网址
    statusTitle: 状态
@@ -236,6 +244,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  spanish:
    urlInput: URL de YouTube u otro servicio compatible
    statusTitle: Estado
@@ -281,6 +291,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  russian:
    urlInput: URL-адрес YouTube или любого другого поддерживаемого сервиса
    statusTitle: Статус
@@ -326,6 +338,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  korean:
    urlInput: YouTube나 다른 지원되는 사이트의 URL
    statusTitle: 상태
@@ -371,6 +385,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  japanese:
    urlInput: YouTubeまたはサポート済み動画のURL
    statusTitle: 状態
@@ -417,6 +433,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  catalan:
    urlInput: URL de YouTube o d'un altre servei compatible
    statusTitle: Estat
@@ -462,6 +480,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  ukrainian:
    urlInput: URL-адреса YouTube або будь-якого іншого підтримуваного сервісу
    statusTitle: Статус
@@ -507,6 +527,8 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
  polish:
    urlInput: Adres URL YouTube lub innej obsługiwanej usługi
    statusTitle: Status
@@ -552,3 +574,5 @@ languages:
    templatesEditor: Templates editor
    templatesEditorNameLabel: Template name
    templatesEditorContentLabel: Template content
+    logsTitle: 'Logs'
+    awaitingLogs: 'Awaiting logs...'
--- a/frontend/src/components/DownloadDialog.tsx
+++ b/frontend/src/components/DownloadDialog.tsx
@@ -32,8 +32,8 @@ import {
  useTransition
 } from 'react'
 import { useRecoilState, useRecoilValue } from 'recoil'
-import { customArgsState, downloadTemplateState, filenameTemplateState } from '../atoms/downloadTemplate'
-import { settingsState } from '../atoms/settings'
+import { customArgsState, downloadTemplateState, filenameTemplateState, savedTemplatesState } from '../atoms/downloadTemplate'
+import { latestCliArgumentsState, settingsState } from '../atoms/settings'
 import { availableDownloadPathsState, connectedState } from '../atoms/status'
 import FormatsGrid from '../components/FormatsGrid'
 import { useI18n } from '../hooks/useI18n'
@@ -63,6 +63,7 @@ const DownloadDialog: FC<Props> = ({ open, onClose, onDownloadStart }) => {
  const isConnected = useRecoilValue(connectedState)
  const availableDownloadPaths = useRecoilValue(availableDownloadPathsState)
  const downloadTemplate = useRecoilValue(downloadTemplateState)
+  const savedTemplates = useRecoilValue(savedTemplatesState)

  const [downloadFormats, setDownloadFormats] = useState<DLMetadata>()
  const [pickedVideoFormat, setPickedVideoFormat] = useState('')
@@ -70,6 +71,8 @@ const DownloadDialog: FC<Props> = ({ open, onClose, onDownloadStart }) => {
  const [pickedBestFormat, setPickedBestFormat] = useState('')

  const [customArgs, setCustomArgs] = useRecoilState(customArgsState)
+  const [, setCliArgs] = useRecoilState(latestCliArgumentsState)
+
  const [downloadPath, setDownloadPath] = useState('')

  const [filenameTemplate, setFilenameTemplate] = useRecoilState(
@@ -81,7 +84,7 @@ const DownloadDialog: FC<Props> = ({ open, onClose, onDownloadStart }) => {

  const [isPlaylist, setIsPlaylist] = useState(false)

-  const cliArgs = useMemo(() =>
+  const argsBuilder = useMemo(() =>
    new CliArguments().fromString(settings.cliArgs), [settings.cliArgs]
  )

@@ -108,7 +111,7 @@ const DownloadDialog: FC<Props> = ({ open, onClose, onDownloadStart }) => {

    client.download({
      url: immediate || url || workingUrl,
-      args: `${cliArgs.toString()} ${toFormatArgs(codes)} ${downloadTemplate}`,
+      args: `${argsBuilder.toString()} ${toFormatArgs(codes)} ${downloadTemplate}`,
      pathOverride: downloadPath ?? '',
      renameTo: settings.fileRenaming ? filenameTemplate : '',
      playlist: isPlaylist,
@@ -313,9 +316,31 @@ const DownloadDialog: FC<Props> = ({ open, onClose, onDownloadStart }) => {
                  }
                </Grid>
                <Suspense>
-                  <ExtraDownloadOptions />
+                  {savedTemplates.length > 0 && <ExtraDownloadOptions />}
                </Suspense>
                <Grid container spacing={1} pt={2} justifyContent="space-between">
+                  <Grid item>
+                    <Grid item>
+                      <FormControlLabel
+                        control={<Checkbox onChange={() => setIsPlaylist(state => !state)} />}
+                        checked={isPlaylist}
+                        label={i18n.t('playlistCheckbox')}
+                      />
+                    </Grid>
+                    <Grid item>
+                      <FormControlLabel
+                        control={
+                          <Checkbox
+                            onChange={() => setCliArgs(argsBuilder.toggleExtractAudio().toString())}
+                          />
+                        }
+                        checked={argsBuilder.extractAudio}
+                        onChange={() => setCliArgs(argsBuilder.toggleExtractAudio().toString())}
+                        disabled={settings.formatSelection}
+                        label={i18n.t('extractAudioCheckbox')}
+                      />
+                    </Grid>
+                  </Grid>
                  <Grid item>
                    <Button
                      variant="contained"
@@ -332,13 +357,6 @@ const DownloadDialog: FC<Props> = ({ open, onClose, onDownloadStart }) => {
                      }
                    </Button>
                  </Grid>
-                  <Grid item>
-                    <FormControlLabel
-                      control={<Checkbox onChange={() => setIsPlaylist(state => !state)} />}
-                      checked={isPlaylist}
-                      label={i18n.t('playlistCheckbox')}
-                    />
-                  </Grid>
                </Grid>
              </Paper>
            </Grid>
--- a/frontend/src/components/ExtraDownloadOptions.tsx
+++ b/frontend/src/components/ExtraDownloadOptions.tsx
@@ -1,4 +1,4 @@
-import { Autocomplete, Box, TextField } from '@mui/material'
+import { Autocomplete, Box, TextField, Typography } from '@mui/material'
 import { useRecoilState, useRecoilValue } from 'recoil'
 import { customArgsState, savedTemplatesState } from '../atoms/downloadTemplate'
 import { useI18n } from '../hooks/useI18n'
@@ -22,9 +22,23 @@ const ExtraDownloadOptions: React.FC = () => {
        renderOption={(props, option) => (
          <Box
            component="li"
-            sx={{ mr: 2, flexShrink: 0 }}
-            {...props}>
-            {option.label}
+            {...props}
+          >
+            <Box sx={{
+              display: 'flex',
+              flexDirection: 'column',
+              alignContent: 'flex-start',
+              justifyContent: 'flex-start',
+              alignItems: 'flex-start',
+              width: '100%'
+            }}>
+              <Typography>
+                {option.label}
+              </Typography>
+              <Typography variant="subtitle2" color="primary">
+                {option.content}
+              </Typography>
+            </Box>
          </Box>
        )}
        sx={{ width: '100%', mt: 2 }}
--- a/frontend/src/components/LogTerminal.tsx
+++ b/frontend/src/components/LogTerminal.tsx
@@ -0,0 +1,91 @@
+import { Box, CircularProgress, Container, Paper, Typography } from '@mui/material'
+import { useEffect, useMemo, useRef, useState } from 'react'
+import { useRecoilValue } from 'recoil'
+import { serverURL } from '../atoms/settings'
+import { useI18n } from '../hooks/useI18n'
+
+const token = localStorage.getItem('token')
+
+const LogTerminal: React.FC = () => {
+  const serverAddr = useRecoilValue(serverURL)
+
+  const { i18n } = useI18n()
+
+  const [logBuffer, setLogBuffer] = useState<string[]>([])
+
+  const boxRef = useRef<HTMLDivElement>(null)
+
+  const eventSource = useMemo(
+    () => new EventSource(`${serverAddr}/log/sse?token=${token}`),
+    [serverAddr]
+  )
+
+  useEffect(() => {
+    eventSource.addEventListener('log', event => {
+      const msg: string[] = JSON.parse(event.data)
+      setLogBuffer(buff => [...buff, ...msg].slice(-100))
+
+      boxRef.current?.scrollTo(0, boxRef.current.scrollHeight)
+    })
+
+    // TODO: in dev mode it breaks sse
+    return () => eventSource.close()
+  }, [eventSource])
+
+  const logEntryStyle = (data: string) => {
+    if (data.includes("level=ERROR")) {
+      return { color: 'red' }
+    }
+    if (data.includes("level=WARN")) {
+      return { color: 'orange' }
+    }
+    return {}
+  }
+
+  return (
+    <Container maxWidth="lg" sx={{ mt: 4, mb: 4 }}>
+      <Paper
+        sx={{
+          p: 2.5,
+          display: 'flex',
+          flexDirection: 'column',
+        }}
+      >
+        <Typography py={1} variant="h5" color="primary">
+          {i18n.t('logsTitle')}
+        </Typography>
+        {(logBuffer.length === 0) && <Box sx={{
+          display: 'flex',
+          flexDirection: 'column',
+          justifyItems: 'center',
+          alignItems: 'center',
+          gap: 1
+        }}>
+          <CircularProgress color="primary" size={32} />
+          <Typography py={1} variant="subtitle2" >
+            {i18n.t('awaitingLogs')}
+          </Typography>
+        </Box>
+        }
+        <Box
+          ref={boxRef}
+          sx={{
+            fontFamily: 'Roboto Mono',
+            height: '75.5vh',
+            overflowY: 'auto',
+            overflowX: 'auto',
+            fontSize: '15px'
+          }}
+        >
+          {logBuffer.map((log, idx) => (
+            <Box key={idx} sx={logEntryStyle(log)}>
+              {log}
+            </Box>
+          ))}
+        </Box>
+      </Paper>
+    </Container >
+  )
+}
+
+export default LogTerminal
--- a/frontend/src/index.tsx
+++ b/frontend/src/index.tsx
@@ -6,6 +6,9 @@ import '@fontsource/roboto/300.css'
 import '@fontsource/roboto/400.css'
 import '@fontsource/roboto/500.css'
 import '@fontsource/roboto/700.css'
+import '@fontsource/roboto/700.css'
+
+import '@fontsource/roboto-mono'

 const root = createRoot(document.getElementById('root')!)

--- a/frontend/src/router.tsx
+++ b/frontend/src/router.tsx
@@ -2,6 +2,7 @@ import { CircularProgress } from '@mui/material'
 import { Suspense, lazy } from 'react'
 import { createHashRouter } from 'react-router-dom'
 import Layout from './Layout'
+import Terminal from './views/Terminal'

 const Home = lazy(() => import('./views/Home'))
 const Login = lazy(() => import('./views/Login'))
@@ -36,6 +37,14 @@ export const router = createHashRouter([
          </Suspense >
        )
      },
+      {
+        path: '/log',
+        element: (
+          <Suspense fallback={<CircularProgress />}>
+            <Terminal />
+          </Suspense >
+        )
+      },
      {
        path: '/archive',
        element: (
--- a/frontend/src/views/Archive.tsx
+++ b/frontend/src/views/Archive.tsx
@@ -9,12 +9,13 @@ import {
  DialogContent,
  DialogContentText,
  DialogTitle,
-  IconButton,
  List,
  ListItem,
  ListItemButton,
  ListItemIcon,
  ListItemText,
+  MenuItem,
+  MenuList,
  Paper,
  SpeedDial,
  SpeedDialAction,
@@ -27,6 +28,7 @@ import FolderIcon from '@mui/icons-material/Folder'
 import InsertDriveFileIcon from '@mui/icons-material/InsertDriveFile'
 import VideoFileIcon from '@mui/icons-material/VideoFile'

+import DownloadIcon from '@mui/icons-material/Download'
 import { matchW } from 'fp-ts/lib/TaskEither'
 import { pipe } from 'fp-ts/lib/function'
 import { useEffect, useMemo, useState, useTransition } from 'react'
@@ -38,12 +40,14 @@ import { useObservable } from '../hooks/observable'
 import { useToast } from '../hooks/toast'
 import { useI18n } from '../hooks/useI18n'
 import { ffetch } from '../lib/httpClient'
-import { DeleteRequest, DirectoryEntry } from '../types'
+import { DirectoryEntry } from '../types'
 import { base64URLEncode, roundMiB } from '../utils'
-import DownloadIcon from '@mui/icons-material/Download'
-

 export default function Downloaded() {
+  const [menuPos, setMenuPos] = useState({ x: 0, y: 0 })
+  const [showMenu, setShowMenu] = useState(false)
+  const [currentFile, setCurrentFile] = useState<DirectoryEntry>()
+
  const serverAddr = useRecoilValue(serverURL)
  const navigate = useNavigate()

@@ -135,19 +139,24 @@ export default function Downloaded() {
      : selected$.next([...selected$.value, name])
  }

+  const deleteFile = (entry: DirectoryEntry) => pipe(
+    ffetch(`${serverAddr}/archive/delete`, {
+      method: 'POST',
+      body: JSON.stringify({
+        path: entry.path,
+        shaSum: entry.shaSum,
+      })
+    }),
+    matchW(
+      (l) => pushMessage(l, 'error'),
+      (_) => fetcher()
+    )
+  )()
+
  const deleteSelected = () => {
    Promise.all(selectable
      .filter(entry => entry.selected)
-      .map(entry => fetch(`${serverAddr}/archive/delete`, {
-        method: 'POST',
-        headers: {
-          'Content-Type': 'application/json',
-        },
-        body: JSON.stringify({
-          path: entry.path,
-          shaSum: entry.shaSum,
-        } as DeleteRequest)
-      }))
+      .map(deleteFile)
    ).then(fetcher)
  }

@@ -172,18 +181,42 @@ export default function Downloaded() {
  })

  return (
-    <Container maxWidth="lg" sx={{ mt: 4, mb: 4 }}>
+    <Container
+      maxWidth="lg"
+      sx={{ mt: 4, mb: 4, height: '100%' }}
+      onClick={() => setShowMenu(false)}
+    >
+      <IconMenu
+        posX={menuPos.x}
+        posY={menuPos.y}
+        hide={!showMenu}
+        onDownload={() => {
+          if (currentFile) {
+            downloadFile(currentFile?.path)
+            setCurrentFile(undefined)
+          }
+        }}
+        onDelete={() => {
+          if (currentFile) {
+            deleteFile(currentFile)
+            setCurrentFile(undefined)
+          }
+        }}
+      />
      <Backdrop
        sx={{ color: '#fff', zIndex: (theme) => theme.zIndex.drawer + 1 }}
        open={!(files$.observed) || isPending}
      >
        <CircularProgress color="primary" />
      </Backdrop>
-      <Paper sx={{
-        p: 2,
-        display: 'flex',
-        flexDirection: 'column',
-      }}>
+      <Paper
+        sx={{
+          p: 2,
+          display: 'flex',
+          flexDirection: 'column',
+        }}
+        onClick={() => setShowMenu(false)}
+      >
        <Typography py={1} variant="h5" color="primary">
          {i18n.t('archiveTitle')}
        </Typography>
@@ -191,6 +224,12 @@ export default function Downloaded() {
          {selectable.length === 0 && 'No files found'}
          {selectable.map((file, idx) => (
            <ListItem
+              onContextMenu={(e) => {
+                e.preventDefault()
+                setCurrentFile(file)
+                setMenuPos({ x: e.clientX, y: e.clientY })
+                setShowMenu(true)
+              }}
              key={idx}
              secondaryAction={
                <div>
@@ -202,13 +241,6 @@ export default function Downloaded() {
                  </Typography>
                  }
                  {!file.isDirectory && <>
-                    <IconButton
-                      size='small'
-                      onClick={() => downloadFile(file.path)}
-                      sx={{ marginLeft: 1.5 }}
-                    >
-                      <DownloadIcon />
-                    </IconButton>
                    <Checkbox
                      edge="end"
                      checked={file.selected}
@@ -275,11 +307,15 @@ export default function Downloaded() {
          </ul>
        </DialogContent>
        <DialogActions>
-          <Button onClick={() => setOpenDialog(false)}>Cancel</Button>
-          <Button onClick={() => {
-            deleteSelected()
-            setOpenDialog(false)
-          }} autoFocus
+          <Button onClick={() => setOpenDialog(false)}>
+            Cancel
+          </Button>
+          <Button
+            onClick={() => {
+              deleteSelected()
+              setOpenDialog(false)
+            }}
+            autoFocus
          >
            Ok
          </Button>
@@ -288,3 +324,42 @@ export default function Downloaded() {
    </Container>
  )
 }
+
+const IconMenu: React.FC<{
+  posX: number
+  posY: number
+  hide: boolean
+  onDownload: () => void
+  onDelete: () => void
+}> = ({ posX, posY, hide, onDelete, onDownload }) => {
+  return (
+    <Paper sx={{
+      width: 320,
+      maxWidth: '100%',
+      position: 'absolute',
+      top: posY,
+      left: posX,
+      display: hide ? 'none' : 'block',
+      zIndex: (theme) => theme.zIndex.drawer + 1,
+    }}>
+      <MenuList>
+        <MenuItem onClick={onDownload}>
+          <ListItemIcon>
+            <DownloadIcon fontSize="small" />
+          </ListItemIcon>
+          <ListItemText>
+            Download
+          </ListItemText>
+        </MenuItem>
+        <MenuItem onClick={onDelete}>
+          <ListItemIcon>
+            <DeleteForeverIcon fontSize="small" />
+          </ListItemIcon>
+          <ListItemText>
+            Delete
+          </ListItemText>
+        </MenuItem>
+      </MenuList>
+    </Paper>
+  )
+}
--- a/frontend/src/views/Terminal.tsx
+++ b/frontend/src/views/Terminal.tsx
@@ -0,0 +1,9 @@
+import LogTerminal from '../components/LogTerminal'
+
+const Terminal: React.FC = () => {
+  return (
+    <LogTerminal />
+  )
+}
+
+export default Terminal
--- a/go.mod
+++ b/go.mod
@@ -9,19 +9,28 @@ require (
 	github.com/google/uuid v1.5.0
 	github.com/gorilla/websocket v1.5.1
 	github.com/marcopeocchi/fazzoletti v0.0.0-20230308161120-c545580f79fa
+	github.com/reactivex/rxgo/v2 v2.5.0
 	golang.org/x/sys v0.15.0
 	gopkg.in/yaml.v3 v3.0.1
 	modernc.org/sqlite v1.28.0
 )

 require (
+	github.com/cenkalti/backoff/v4 v4.0.0 // indirect
+	github.com/davecgh/go-spew v1.1.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/emirpasic/gods v1.12.0 // indirect
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/stretchr/objx v0.1.0 // indirect
+	github.com/stretchr/testify v1.4.0 // indirect
+	github.com/teivah/onecontext v0.0.0-20200513185103-40f981bfd775 // indirect
 	golang.org/x/mod v0.14.0 // indirect
 	golang.org/x/net v0.19.0 // indirect
 	golang.org/x/tools v0.16.1 // indirect
+	gopkg.in/yaml.v2 v2.2.2 // indirect
 	lukechampine.com/uint128 v1.3.0 // indirect
 	modernc.org/cc/v3 v3.41.0 // indirect
 	modernc.org/ccgo/v3 v3.16.15 // indirect
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,11 @@
+github.com/cenkalti/backoff/v4 v4.0.0 h1:6VeaLF9aI+MAUQ95106HwWzYZgJJpZ4stumjj6RFYAU=
+github.com/cenkalti/backoff/v4 v4.0.0/go.mod h1:eEew/i+1Q6OrCDZh3WiXYv3+nJwBASZ8Bog/87DQnVg=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/emirpasic/gods v1.12.0 h1:QAUIPSaCu4G+POclxeqb3F+WPpdKqFGlw36+yOzGlrg=
+github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
 github.com/go-chi/chi/v5 v5.0.11 h1:BnpYbFZ3T3S1WMpD79r7R5ThWX40TaFB7L31Y8xqSwA=
 github.com/go-chi/chi/v5 v5.0.11/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
 github.com/go-chi/cors v1.2.1 h1:xEC8UT3Rlp2QuWNEr4Fs/c2EAGVKBwy/1vHx3bppil4=
@@ -14,26 +20,58 @@ github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/
 github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
 github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
 github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
+github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/marcopeocchi/fazzoletti v0.0.0-20230308161120-c545580f79fa h1:uaAQLGhN4SesB9inOQ1Q6EH+BwTWHQOvwhR0TIJvnYc=
 github.com/marcopeocchi/fazzoletti v0.0.0-20230308161120-c545580f79fa/go.mod h1:RvfVo/6Sbnfra9kkvIxDW8NYOOaYsHjF0DdtMCs9cdo=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-sqlite3 v1.14.16 h1:yOQRA0RpS5PFz/oikGwBEqvAWhWg5ufRz4ETLjwpU1Y=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/reactivex/rxgo/v2 v2.5.0 h1:FhPgHwX9vKdNQB2gq9EPt+EKk9QrrzoeztGbEEnZam4=
+github.com/reactivex/rxgo/v2 v2.5.0/go.mod h1:bs4fVZxcb5ZckLIOeIeVH942yunJLWDABWGbrHAW+qU=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/teivah/onecontext v0.0.0-20200513185103-40f981bfd775 h1:BLNsFR8l/hj/oGjnJXkd4Vi3s4kQD3/3x8HSAE4bzN0=
+github.com/teivah/onecontext v0.0.0-20200513185103-40f981bfd775/go.mod h1:XUZ4x3oGhWfiOnUvTslnKKs39AWUct3g3yJvXTQSJOQ=
+go.uber.org/goleak v1.1.10 h1:z+mqJhf6ss6BSfSM671tgKyZBFPTTJM+HLxnhPC3wu0=
+go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
+golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.14.0 h1:dGoOF9QVLYng8IHTm7BAyWqCqSheQ5pYWGhzW00YJr0=
 golang.org/x/mod v0.14.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.19.0 h1:zTwKpTd2XuCqf8huc7Fo2iSy+4RHPd10s4KzeTnVr1c=
 golang.org/x/net v0.19.0/go.mod h1:CfAk/cbD4CthTvqiEl8NpboMuiuOYsAr/7NOjZJtv1U=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
 golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.16.1 h1:TLyB3WofjdOEepBHAU20JdNC1Zbg87elYofWYAY5oZA=
 golang.org/x/tools v0.16.1/go.mod h1:kYVVN6I1mBNoB1OX+noeBjbRk4IUEPa7JJ+TJMEooJ0=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 lukechampine.com/uint128 v1.3.0 h1:cDdUVfRwDUDovz610ABgFD17nXD4/uDgVHl2sC3+sbo=
--- a/server/config/parser.go
+++ b/server/config/parser.go
@@ -8,6 +8,8 @@ import (
 )

 type Config struct {
+	CurrentLogFile  string
+	LogPath         string `yaml:"log_path"`
 	Host            string `yaml:"host"`
 	Port            int    `yaml:"port"`
 	DownloadPath    string `yaml:"downloadPath"`
--- a/server/internal/memory_db.go
+++ b/server/internal/memory_db.go
@@ -4,13 +4,11 @@ import (
 	"encoding/gob"
 	"errors"
 	"fmt"
-	"log"
 	"os"
 	"path/filepath"
 	"sync"

 	"github.com/google/uuid"
-	"github.com/marcopeocchi/yt-dlp-web-ui/server/cli"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/config"
 )

@@ -94,14 +92,14 @@ func (m *MemoryDB) All() *[]ProcessResponse {
 }

 // WIP: Persist the database in a single file named "session.dat"
-func (m *MemoryDB) Persist() {
+func (m *MemoryDB) Persist() error {
 	running := m.All()

 	sf := filepath.Join(config.Instance().SessionFilePath, "session.dat")

 	fd, err := os.Create(sf)
 	if err != nil {
-		log.Println(cli.Red, "Failed to persist session", cli.Reset)
+		return errors.Join(errors.New("failed to persist session"), err)
 	}

 	session := Session{
@@ -110,10 +108,10 @@ func (m *MemoryDB) Persist() {

 	err = gob.NewEncoder(fd).Encode(session)
 	if err != nil {
-		log.Println(cli.Red, "Failed to persist session", cli.Reset)
+		return errors.Join(errors.New("failed to persist session"), err)
 	}

-	log.Println(cli.BgBlue, "Successfully serialized session", cli.Reset)
+	return nil
 }

 // WIP: Restore a persisted state
@@ -146,6 +144,4 @@ func (m *MemoryDB) Restore() {
 			go restored.Start()
 		}
 	}
-
-	log.Println(cli.BgGreen, "Successfully restored session", cli.Reset)
 }
--- a/server/internal/message_queue.go
+++ b/server/internal/message_queue.go
@@ -1,8 +1,6 @@
 package internal

 import (
-	"log"
-
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/config"
 )

@@ -19,7 +17,7 @@ func NewMessageQueue() *MessageQueue {
 	size := config.Instance().QueueSize

 	if size <= 0 {
-		log.Fatalln("invalid queue size")
+		panic("invalid queue size")
 	}

 	return &MessageQueue{
--- a/server/internal/playlist.go
+++ b/server/internal/playlist.go
@@ -3,12 +3,11 @@ package internal
 import (
 	"encoding/json"
 	"errors"
-	"log"
+	"log/slog"
 	"os/exec"
 	"strings"
 	"time"

-	"github.com/marcopeocchi/yt-dlp-web-ui/server/cli"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/config"
 )

@@ -19,7 +18,7 @@ type metadata struct {
 	Type          string         `json:"_type"`
 }

-func PlaylistDetect(req DownloadRequest, mq *MessageQueue, db *MemoryDB) error {
+func PlaylistDetect(req DownloadRequest, mq *MessageQueue, db *MemoryDB, logger *slog.Logger) error {
 	var (
 		downloader = config.Instance().DownloaderPath
 		cmd        = exec.Command(downloader, req.URL, "-J")
@@ -37,14 +36,14 @@ func PlaylistDetect(req DownloadRequest, mq *MessageQueue, db *MemoryDB) error {
 		return err
 	}

-	log.Println(cli.BgRed, "Decoding metadata", cli.Reset, req.URL)
+	logger.Info("decoding metadata", slog.String("url", req.URL))

 	err = json.NewDecoder(stdout).Decode(&m)
 	if err != nil {
 		return err
 	}

-	log.Println(cli.BgGreen, "Decoded metadata", cli.Reset, req.URL)
+	logger.Info("decoded metadata", slog.String("url", req.URL))

 	if m.Type == "" {
 		cmd.Wait()
@@ -52,8 +51,10 @@ func PlaylistDetect(req DownloadRequest, mq *MessageQueue, db *MemoryDB) error {
 	}

 	if m.Type == "playlist" {
-		log.Println(
-			cli.BgGreen, "Playlist detected", cli.Reset, m.Count, "entries",
+		logger.Info(
+			"playlist detected",
+			slog.String("url", req.URL),
+			slog.Int("count", m.Count),
 		)

 		for i, meta := range m.Entries {
@@ -93,8 +94,7 @@ func PlaylistDetect(req DownloadRequest, mq *MessageQueue, db *MemoryDB) error {
 	proc := &Process{Url: req.URL, Params: req.Params}

 	mq.Publish(proc)
-	log.Println("Sending new process to message queue", proc.Url)
+	logger.Info("sending new process to message queue", slog.String("url", proc.Url))

-	err = cmd.Wait()
-	return err
+	return cmd.Wait()
 }
--- a/server/internal/process.go
+++ b/server/internal/process.go
@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
+	"log/slog"
 	"regexp"
 	"sync"
 	"syscall"
@@ -50,6 +51,7 @@ type Process struct {
 	Progress DownloadProgress
 	Output   DownloadOutput
 	proc     *os.Process
+	Logger   *slog.Logger
 }

 type DownloadOutput struct {
@@ -106,13 +108,21 @@ func (p *Process) Start() {

 	r, err := cmd.StdoutPipe()
 	if err != nil {
-		log.Panicln(err)
+		p.Logger.Error(
+			"failed to connect to stdout",
+			slog.String("err", err.Error()),
+		)
+		panic(err)
 	}
 	scan := bufio.NewScanner(r)

 	err = cmd.Start()
 	if err != nil {
-		log.Panicln(err)
+		p.Logger.Error(
+			"failed to start yt-dlp process",
+			slog.String("err", err.Error()),
+		)
+		panic(err)
 	}

 	p.proc = cmd.Process
@@ -151,10 +161,10 @@ func (p *Process) Start() {
 					Speed:      stdout.Speed,
 					ETA:        stdout.Eta,
 				}
-				log.Println(
-					cli.BgGreen, "DL", cli.Reset,
-					cli.BgBlue, p.getShortId(), cli.Reset,
-					p.Url, stdout.Percentage,
+				p.Logger.Info("progress",
+					slog.String("id", p.getShortId()),
+					slog.String("url", p.Url),
+					slog.String("percentege", stdout.Percentage),
 				)
 			}
 		})
@@ -175,12 +185,9 @@ func (p *Process) Complete() {
 		ETA:        0,
 	}

-	shortId := p.getShortId()
-
-	log.Println(
-		cli.BgMagenta, "FINISH", cli.Reset,
-		cli.BgBlue, shortId, cli.Reset,
-		p.Url,
+	p.Logger.Info("finished",
+		slog.String("id", p.getShortId()),
+		slog.String("url", p.Url),
 	)
 }

@@ -197,7 +204,7 @@ func (p *Process) Kill() error {
 		}
 		err = syscall.Kill(-pgid, syscall.SIGTERM)

-		log.Println("Killed process", p.Id)
+		p.Logger.Info("killed process", slog.String("id", p.Id))
 		return err
 	}

@@ -233,6 +240,12 @@ func (p *Process) GetFormatsSync() (DownloadFormats, error) {
 		p.Url,
 	)

+	p.Logger.Info(
+		"retrieving metadata",
+		slog.String("caller", "getFormats"),
+		slog.String("url", p.Url),
+	)
+
 	go func() {
 		decodingError = json.Unmarshal(stdout, &info)
 		wg.Done()
@@ -264,7 +277,11 @@ func (p *Process) SetMetadata() error {

 	stdout, err := cmd.StdoutPipe()
 	if err != nil {
-		log.Println("Cannot retrieve info for", p.Url)
+		p.Logger.Error("failed retrieving info",
+			slog.String("id", p.getShortId()),
+			slog.String("url", p.Url),
+			slog.String("err", err.Error()),
+		)
 		return err
 	}

@@ -278,10 +295,9 @@ func (p *Process) SetMetadata() error {
 		return err
 	}

-	log.Println(
-		cli.BgRed, "Metadata", cli.Reset,
-		cli.BgBlue, p.getShortId(), cli.Reset,
-		p.Url,
+	p.Logger.Info("retrieving metadata",
+		slog.String("id", p.getShortId()),
+		slog.String("url", p.Url),
 	)

 	err = json.NewDecoder(stdout).Decode(&info)
--- a/server/logging/handler.go
+++ b/server/logging/handler.go
@@ -0,0 +1,80 @@
+package logging
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/gorilla/websocket"
+	"github.com/marcopeocchi/yt-dlp-web-ui/server/config"
+	middlewares "github.com/marcopeocchi/yt-dlp-web-ui/server/middleware"
+)
+
+var upgrader = websocket.Upgrader{
+	CheckOrigin: func(r *http.Request) bool {
+		return true
+	},
+	ReadBufferSize:  1000,
+	WriteBufferSize: 1000,
+}
+
+func webSocket(w http.ResponseWriter, r *http.Request) {
+	c, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	for msg := range logsObservable.Observe() {
+		c.WriteJSON(msg.V)
+	}
+}
+
+func sse(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+
+	flusher, ok := w.(http.Flusher)
+	if !ok {
+		http.Error(w, "SSE not supported", http.StatusInternalServerError)
+		return
+	}
+
+	for msg := range logsObservable.Observe() {
+		if msg.E != nil {
+			http.Error(w, msg.E.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		var (
+			b  bytes.Buffer
+			sb strings.Builder
+		)
+
+		if err := json.NewEncoder(&b).Encode(msg.V); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		sb.WriteString("event: log\n")
+		sb.WriteString("data: " + b.String() + "\n\n")
+
+		fmt.Fprint(w, sb.String())
+
+		flusher.Flush()
+	}
+}
+
+func ApplyRouter() func(chi.Router) {
+	return func(r chi.Router) {
+		if config.Instance().RequireAuth {
+			r.Use(middlewares.Authenticated)
+		}
+		r.Get("/ws", webSocket)
+		r.Get("/sse", sse)
+	}
+}
--- a/server/logging/observable_logger.go
+++ b/server/logging/observable_logger.go
@@ -0,0 +1,29 @@
+package logging
+
+import (
+	"time"
+
+	"github.com/reactivex/rxgo/v2"
+)
+
+var (
+	logsChan       = make(chan rxgo.Item, 100)
+	logsObservable = rxgo.
+			FromChannel(logsChan, rxgo.WithBackPressureStrategy(rxgo.Drop)).
+			BufferWithTime(rxgo.WithDuration(time.Millisecond * 500))
+)
+
+type ObservableLogger struct{}
+
+func NewObservableLogger() *ObservableLogger {
+	return &ObservableLogger{}
+}
+
+func (o *ObservableLogger) Write(p []byte) (n int, err error) {
+	logsChan <- rxgo.Of(string(p))
+
+	n = len(p)
+	err = nil
+
+	return
+}
--- a/server/rpc/container.go
+++ b/server/rpc/container.go
@@ -1,6 +1,8 @@
 package rpc

 import (
+	"log/slog"
+
 	"github.com/go-chi/chi/v5"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/config"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/internal"
@@ -8,10 +10,15 @@ import (
 )

 // Dependency injection container.
-func Container(db *internal.MemoryDB, mq *internal.MessageQueue) *Service {
+func Container(
+	db *internal.MemoryDB,
+	mq *internal.MessageQueue,
+	logger *slog.Logger,
+) *Service {
 	return &Service{
-		db: db,
-		mq: mq,
+		db:     db,
+		mq:     mq,
+		logger: logger,
 	}
 }

--- a/server/rpc/service.go
+++ b/server/rpc/service.go
@@ -1,7 +1,7 @@
 package rpc

 import (
-	"log"
+	"log/slog"

 	"github.com/marcopeocchi/yt-dlp-web-ui/server/internal"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/sys"
@@ -9,8 +9,9 @@ import (
 )

 type Service struct {
-	db *internal.MemoryDB
-	mq *internal.MessageQueue
+	db     *internal.MemoryDB
+	mq     *internal.MessageQueue
+	logger *slog.Logger
 }

 type Running []internal.ProcessResponse
@@ -34,6 +35,7 @@ func (s *Service) Exec(args internal.DownloadRequest, result *string) error {
 			Path:     args.Path,
 			Filename: args.Rename,
 		},
+		Logger: s.logger,
 	}

 	s.db.Set(p)
@@ -46,7 +48,7 @@ func (s *Service) Exec(args internal.DownloadRequest, result *string) error {
 // Exec spawns a Process.
 // The result of the execution is the newly spawned process Id.
 func (s *Service) ExecPlaylist(args internal.DownloadRequest, result *string) error {
-	err := internal.PlaylistDetect(args, s.mq, s.db)
+	err := internal.PlaylistDetect(args, s.mq, s.db, s.logger)
 	if err != nil {
 		return err
 	}
@@ -88,7 +90,7 @@ func (s *Service) Running(args NoArgs, running *Running) error {

 // Kill kills a process given its id and remove it from the memoryDB
 func (s *Service) Kill(args string, killed *string) error {
-	log.Println("Trying killing process with id", args)
+	s.logger.Info("Trying killing process with id", slog.String("id", args))
 	proc, err := s.db.Get(args)

 	if err != nil {
@@ -106,7 +108,7 @@ func (s *Service) Kill(args string, killed *string) error {
 // KillAll kills all process unconditionally and removes them from
 // the memory db
 func (s *Service) KillAll(args NoArgs, killed *string) error {
-	log.Println("Killing all spawned processes", args)
+	s.logger.Info("Killing all spawned processes")
 	keys := s.db.Keys()
 	var err error
 	for _, key := range *keys {
@@ -125,7 +127,7 @@ func (s *Service) KillAll(args NoArgs, killed *string) error {

 // Remove a process from the db rendering it unusable if active
 func (s *Service) Clear(args string, killed *string) error {
-	log.Println("Clearing process with id", args)
+	s.logger.Info("Clearing process with id", slog.String("id", args))
 	s.db.Delete(args)
 	return nil
 }
@@ -148,7 +150,7 @@ func (s *Service) DirectoryTree(args NoArgs, tree *[]string) error {

 // Updates the yt-dlp binary using its builtin function
 func (s *Service) UpdateExecutable(args NoArgs, updated *bool) error {
-	log.Println("Updating yt-dlp executable to the latest release")
+	s.logger.Info("Updating yt-dlp executable to the latest release")
 	err := updater.UpdateExecutable()
 	if err != nil {
 		*updated = true
--- a/server/server.go
+++ b/server/server.go
@@ -4,8 +4,9 @@ import (
 	"context"
 	"database/sql"
 	"fmt"
+	"io"
 	"io/fs"
-	"log"
+	"log/slog"
 	"net/http"
 	"net/rpc"
 	"os"
@@ -20,6 +21,7 @@ import (
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/dbutils"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/handlers"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/internal"
+	"github.com/marcopeocchi/yt-dlp-web-ui/server/logging"
 	middlewares "github.com/marcopeocchi/yt-dlp-web-ui/server/middleware"
 	"github.com/marcopeocchi/yt-dlp-web-ui/server/rest"
 	ytdlpRPC "github.com/marcopeocchi/yt-dlp-web-ui/server/rpc"
@@ -29,6 +31,7 @@ import (

 type serverConfig struct {
 	frontend fs.FS
+	logger   *slog.Logger
 	host     string
 	port     int
 	mdb      *internal.MemoryDB
@@ -40,14 +43,21 @@ func RunBlocking(host string, port int, frontend fs.FS, dbPath string) {
 	var mdb internal.MemoryDB
 	mdb.Restore()

+	logger := slog.New(
+		slog.NewTextHandler(
+			io.MultiWriter(os.Stdout, logging.NewObservableLogger()),
+			nil,
+		),
+	)
+
 	db, err := sql.Open("sqlite", dbPath)
 	if err != nil {
-		log.Fatalln(err)
+		logger.Error("failed to open database", slog.String("err", err.Error()))
 	}

 	err = dbutils.AutoMigrate(context.Background(), db)
 	if err != nil {
-		log.Fatalln(err)
+		logger.Error("failed to init database", slog.String("err", err.Error()))
 	}

 	mq := internal.NewMessageQueue()
@@ -55,6 +65,7 @@ func RunBlocking(host string, port int, frontend fs.FS, dbPath string) {

 	srv := newServer(serverConfig{
 		frontend: frontend,
+		logger:   logger,
 		host:     host,
 		port:     port,
 		mdb:      &mdb,
@@ -63,13 +74,15 @@ func RunBlocking(host string, port int, frontend fs.FS, dbPath string) {
 	})

 	go gracefulShutdown(srv, &mdb)
-	go autoPersist(time.Minute*5, &mdb)
+	go autoPersist(time.Minute*5, &mdb, logger)

-	log.Fatal(srv.ListenAndServe())
+	if err := srv.ListenAndServe(); err != nil {
+		logger.Warn("http server stopped", slog.String("err", err.Error()))
+	}
 }

 func newServer(c serverConfig) *http.Server {
-	service := ytdlpRPC.Container(c.mdb, c.mq)
+	service := ytdlpRPC.Container(c.mdb, c.mq, c.logger)
 	rpc.Register(service)

 	r := chi.NewRouter()
@@ -91,9 +104,7 @@ func newServer(c serverConfig) *http.Server {
 	r.Use(corsMiddleware.Handler)
 	r.Use(middleware.Logger)

-	app := http.FileServer(http.FS(c.frontend))
-
-	r.Mount("/", app)
+	r.Mount("/", http.FileServer(http.FS(c.frontend)))

 	// Archive routes
 	r.Route("/archive", func(r chi.Router) {
@@ -118,6 +129,9 @@ func newServer(c serverConfig) *http.Server {
 	// REST API handlers
 	r.Route("/api/v1", rest.ApplyRouter(c.db, c.mdb, c.mq))

+	// Logging
+	r.Route("/log", logging.ApplyRouter())
+
 	return &http.Server{
 		Addr:    fmt.Sprintf("%s:%d", c.host, c.port),
 		Handler: r,
@@ -133,7 +147,7 @@ func gracefulShutdown(srv *http.Server, db *internal.MemoryDB) {

 	go func() {
 		<-ctx.Done()
-		log.Println("shutdown signal received")
+		slog.Info("shutdown signal received")

 		defer func() {
 			db.Persist()
@@ -143,9 +157,15 @@ func gracefulShutdown(srv *http.Server, db *internal.MemoryDB) {
 	}()
 }

-func autoPersist(d time.Duration, db *internal.MemoryDB) {
+func autoPersist(d time.Duration, db *internal.MemoryDB, logger *slog.Logger) {
 	for {
-		db.Persist()
+		if err := db.Persist(); err != nil {
+			logger.Info(
+				"failed to persisted session",
+				slog.String("err", err.Error()),
+			)
+		}
+		logger.Info("sucessfully persisted session")
 		time.Sleep(d)
 	}
 }
--- a/server/utils/logrotate.go
+++ b/server/utils/logrotate.go
@@ -0,0 +1,55 @@
+package utils
+
+import (
+	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/marcopeocchi/yt-dlp-web-ui/server/config"
+)
+
+func LogRotate() (*os.File, error) {
+	logs := findLogs()
+
+	for _, log := range logs {
+		logfd, err := os.Open(log)
+		if err != nil {
+			return nil, err
+		}
+
+		gzWriter, err := os.Create(log + ".gz")
+		if err != nil {
+			return nil, err
+		}
+
+		_, err = io.Copy(gzWriter, logfd)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	logfile := time.Now().String() + ".log"
+	config.Instance().CurrentLogFile = logfile
+
+	return os.Create(logfile)
+}
+
+func findLogs() []string {
+	var (
+		logfiles []string
+		root     = config.Instance().LogPath
+	)
+
+	filepath.WalkDir(root, func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		if filepath.Ext(d.Name()) == ".log" {
+			logfiles = append(logfiles, path)
+		}
+		return nil
+	})
+	return logfiles
+}