## Red Letter Media
# Set URL and Location
$URL = "https://www.youtube.com/@RedLetterMedia"
$folderPath = "\\truenas3.kwyjibo.info\RedLetterMedia$"

Set-Location $folderPath

$rejects = @()
$rejects_string = $rejects -join '|'

# Download flat playlist
Write-Verbose -Message "Download flat playlist"
$flat = D:\youtube-dlp\yt-dlp.exe -j --flat-playlist $URL
$flat | Set-Content -Path RLM.json

# load json into memory, convert to psobject
$json = Get-Content -Path RLM.json | ConvertFrom-Json

# Load all .mp4 files into memory once at the start
$mp4Files = Get-ChildItem -Path $folderPath -Recurse -Filter "*.mp4"

ForEach ($obj in $json) {
    # Initialize $fileFound as null for each iteration
    $fileFound = $false

    # Extract information from the JSON object
    $videoUrl = $obj.webpage_url
    $Title = $obj.title
    $Id = $obj.id

    # Log the start of the process
    Write-Verbose -Message "Start $Id ##### $Title"
    
    # Check if the title matches any reject term using wildcards
    $reject_matches = $rejects | Where-Object { $Title -like "*$($_)*" }

    # If matches are found, reject the title
    If ($reject_matches) {
        Write-Warning -Message "Skip  $Id ##### $Title"
    }
    Else {
        # downloaded already?
        # Regular expression to match the ID after "youtube-" and before the closing bracket
        $regex = "(?i)youtube-$Id"

        # Check if any file already exists that matches the video ID
        $fileFound = $mp4Files | Where-Object { $_.Name -match $regex }

        # If no file is found, notify the user
        if ($fileFound) {
            Write-Warning "File found with the YouTube ID: $Id"
        }
        Else {
            # Execute yt-dlp command for non-rejected videos
            try {
                Write-Warning -Message "Dwnld $Id ##### $Title"
                #$attemptedDownloads.Add($obj)
                D:\youtube-dlp\yt-dlp.exe $videoUrl `
                    --write-info-json `
                    --write-thumbnail `
                    --convert-thumbnails jpg `
                    --no-progress `
                    -t sleep `
                    --rate-limit 5M `
                    -o "Season %(release_date>%y,upload_date>%y|Unknown)s/%(release_date>%Y%m%d,upload_date>%Y%m%d)s - %(title).180B [%(extractor)s-%(id)s].%(ext)s" `
                    -f "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best" `
                    -S vcodec:h264 `
                    --reject-title $rejects_string `
                    --playlist-reverse 
                #--cookies "D:\youtube-dlp\20251024_currentsite_cookies.firefox-private.txt" #`
                #--extractor-args "youtube:player_client=default,web_safari;player_js_version=actual"
                # --reject-title "Dude Soup|Podcast" `  # FH
            }
            catch {
                Write-Error "Failed to download $Id - $_"
            }
        }
    }

    # Log the end of the process
    Write-Verbose -Message "End   $Id ##### $Title"
}