Set-Location -Path $PSScriptRoot

$months = @{

"Jan"="01"; "Feb"="02"; "Mar"="03"; "Apr"="04";

"May"="05"; "Jun"="06"; "Jul"="07"; "Aug"="08";

"Sep"="09"; "Oct"="10"; "Nov"="11"; "Dec"="12"

}

Get-ChildItem -Filter "*.srt" | ForEach-Object {

$originalFile = $_.FullName

$fileName = $_.Name

# Regex to extract Course Code, Course Number, Stream Code, Day, and Month.

# Matches: [401-401] CIVIL 790 T01C - Fri 01 May ...

if ($fileName -match '\]\s*([A-Z]+)\s+(\d{3})\s+(\S+)\s*-\s*[A-Za-z]{3}\s+(\d{2})\s+([A-Za-z]{3})') {

$courseCode = $matches[1]

$courseNum = $matches[2]

$streamCode = $matches[3]

$day = $matches[4]

$monthStr = $matches[5]

$monthNum = $months[$monthStr]

# Construct new names and paths

$newBaseName = "$monthNum$day - $courseCode $courseNum $streamCode"

$newSrtName = "$newBaseName.srt"

$newTxtName = "$newBaseName.txt"

$folderName = "$courseCode $courseNum"

$folderPath = Join-Path -Path $_.DirectoryName -ChildPath $folderName

$targetSrtPath = Join-Path -Path $folderPath -ChildPath $newSrtName

$targetTxtPath = Join-Path -Path $folderPath -ChildPath $newTxtName

$tempSrtPath = Join-Path -Path $_.DirectoryName -ChildPath $newSrtName

$tempTxtPath = Join-Path -Path $_.DirectoryName -ChildPath $newTxtName

# Skip this file if any output already exists.

$pathsToCheck = @($targetSrtPath, $targetTxtPath, $tempTxtPath)

if ($tempSrtPath -ne $originalFile) {

$pathsToCheck += $tempSrtPath

}

$existingOutputs = $pathsToCheck | Where-Object { Test-Path -LiteralPath $_ }

if ($existingOutputs.Count -gt 0) {

Write-Warning "Skipped: $fileName (Output already exists; not overwriting)"

foreach ($existingOutput in $existingOutputs) {

Write-Warning " Existing: $existingOutput"

}

return

}

# 1. Generate the TXT file content

$srtContent = Get-Content -LiteralPath $originalFile -Raw

$blocks = $srtContent -split "(?:\r?\n){2,}" # Split by empty lines

$txtLines = @()

foreach ($block in $blocks) {

$lines = $block -split "\r?\n"

# Make sure the block actually contains text (Index + Timestamp + at least 1 line of text)

if ($lines.Count -ge 3) {

# Join multi-line captions (like lines 3+4) into a single line with a space

$caption = ($lines[2..($lines.Count-1)]) -join " "

if (-not [string]::IsNullOrWhiteSpace($caption)) {

$txtLines += $caption

}

}

}

# 2. Save the TXT file to the current directory temporarily

$txtLines | Set-Content -LiteralPath $tempTxtPath -Encoding UTF8

# 3. Rename the original SRT file

Rename-Item -LiteralPath $originalFile -NewName $newSrtName

# 4. Create the target course folder if it doesn't exist

if (-not (Test-Path -Path $folderPath)) {

New-Item -ItemType Directory -Path $folderPath | Out-Null

}

# 5. Move both files into the target folder

Move-Item -LiteralPath $tempSrtPath -Destination $folderPath

Move-Item -LiteralPath $tempTxtPath -Destination $folderPath

Write-Host "Processed and moved: $newBaseName" -ForegroundColor Green

} else {

Write-Host "Skipped: $fileName (Did not match the expected naming format)" -ForegroundColor Yellow

}

}

pause