################START SCRIPT################

#rilevo time per log inizio analisi
$startTime = (Get-Date).toString("yyyy/MM/dd HH:mm:ss")

# avvio stopwatch
$mainStopWatch =  [system.diagnostics.stopwatch]::StartNew()

#token per autenticazione
$head = @{"PRIVATE-TOKEN"="glpat-dQsUhS-GxNomkh1GnjHZ"}

#contatore ciclo do while
$projectCount = 1

#numero massimo di progetti da analizzare
$projectNumber = 200

#conteggio progetti trovati
$projectsFound = 0

#conteggio progetti con  commit negli ultimi giorni
$projectWithCommits = 0

#conteggio progetti senza commit negli ultimi giorni
$projectWithNoCommits = 0

#conteggio commits degli ultimi giorni
$recentCommits = 0

#livello di log: 0=log sintetico, 1=log errori, 2=log full, 3=log ampolloso
$logLevel = 0

#output a terminale: 0=disattivo, 1=abilitato
$terminalOutput = 0

#ultimi giorni da considerare
$lastDays = 7

#data per conteggio commits degli ultimi giorni
$requestDate = (Get-Date).AddDays(-$lastDays).toString("yyyy-MM-dd")

#cartella file di log
$GitLogFolder="c:\Steamware\Logs\Gitlab\"

#nome file di log
$logFile = Join-Path $GitLogFolder "GitlabCommits.log"

#dichiaro funzione per scrittura output
Function WriteLogOutput
{
    Param ($logType, [string]$logString)
    #scrivo su file la stringa se il tipo di log è > o = al livello di log richieeso
    if($logType -le $logLevel)
    {
        Add-content $logFile -value "$logString"
        #scrivo su terminale la stringa se $terminalOutput=1
        if($terminalOutput -eq 1)
        {
            Write-Output($logString)
        }
    }
}

#creazione folder di Log se non già esistente
if (Test-Path $GitLogFolder)
{
}
else
{
    New-Item $GitLogFolder -ItemType Directory
}

#scrivo intestazione e inizio analisi
WriteLogOutput 0 "--------------------"
Switch ($logLevel)
{
    0 {WriteLogOutput 0 "LOG SINTETICO GITLAB COMMITS"}
    1 {WriteLogOutput 0 "LOG ERRORI GITLAB COMMITS"}
    2 {WriteLogOutput 0 "LOG FULL GITLAB COMMITS"}
    3 {WriteLogOutput 0 "LOG AMPOLLOSO GITLAB COMMITS"}
}
WriteLogOutput 0 ""
WriteLogOutput 0 "Percorso log: $GitLogFolder"
WriteLogOutput 0 ""
WriteLogOutput 0 "Inizio Esecuzione Script: $startTime"
WriteLogOutput 0 ""
WriteLogOutput 0 "RICERCA DA $requestDate | ULTIMI $lastDays GIORNI"

#ciclo principale do/while che cicla da 1 a N projectNumber
do
{
    $callUrl = "https://gitlab.steamware.net/api/v4/projects/" + $projectCount + "/repository/commits?per_page=100&since=" + $requestDate
    try
    {
        $Response = Invoke-WebRequest -URI $callUrl -Headers $head -ContentType "application/json" -UseBasicParsing
        $parsedResponse = $Response.Content | ConvertFrom-Json
        #scrivo il numero del progetto nel terminale e su file
        WriteLogOutput 1 ""
        WriteLogOutput 1 "--------------------"
        WriteLogOutput 1 "**PROGETTO $projectCount**"
        if($parsedResponse.Count -eq 0 )
        {
            $projectWithNoCommits=$projectWithNoCommits+1
        }
        else
        {
            $projectWithCommits=$projectWithCommits+1
            foreach($item in $parsedResponse)
            {
                if($item.web_url)
                {
                    WriteLogOutput 1 "Date: $($item.committed_date) - Web Url: $($item.web_url)"
                    $recentCommits=$recentCommits+1
                }
            }
        }
        $projectsFound=$projectsFound+1
    }
    #scrivo se trovo un errore (in particolare progetto non trovato o privo di commits) durante il try/catch (solo se loglevel è = 3)
    catch
    {
        WriteLogOutput 3 ""
        WriteLogOutput 3 "--------------------"
        WriteLogOutput 3 "**PROGETTO $projectCount NON ESISTENTE**"
    }
    $projectCount=$projectCount+1
}
#fine ciclo principale
while($projectCount -le $projectNumber)

#percentuale di projectWithCommits sul totale
$projectWithCommitsPercentage = [math]::Round(($projectWithCommits/$projectsFound)*100,1)

#percentuale di projectWithNoCommits sul totale
$projectWithNoCommitsPercentage = [math]::Round(($projectWithNoCommits/$projectsFound)*100,1)

# fermo stopwatch e calcolo durata script
$mainStopWatch.Stop()
$durataScript = $mainStopWatch.Elapsed.TotalSeconds

#rilevo time per log fine analisi
$endTime = (Get-Date).toString("yyyy/MM/dd HH:mm:ss")

#invio a zabbix le metriche rilevate tramite zabbix_sender.exe
WriteLogOutput 0 ""
#& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.ProjectsFound -o $projectsFound
& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.LastDaysCommits -o $lastDays
& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.RecentCommits -o $recentCommits
& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.ProjectWithCommits -o $projectWithCommits
& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.ProjectWithNoCommits -o $projectWithNoCommits
& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.ProjectWithCommitsPercentage -o $projectWithCommitsPercentage
& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.ProjectWithNoCommitsPercentage -o $projectWithNoCommitsPercentage
& "C:\Program Files\Zabbix Agent\zabbix_sender.exe" -z zabproxy.ufficio -s "IIS04" -k Gitlab.CheckCommitsDuration -o $durataScript

#scrivo a video le statistiche
WriteLogOutput 0 ""
WriteLogOutput 0 "PROGETTI TOTALI: $projectsFound"
WriteLogOutput 0 "COMMITS TOTALI: $recentCommits"
WriteLogOutput 0 "PROGETTI CON COMMITS: $projectWithCommits ($projectWithCommitsPercentage%)"
WriteLogOutput 0 "PROGETTI SENZA COMMITS: $projectWithNoCommits ($projectWithNoCommitsPercentage%)"
WriteLogOutput 0 ""
WriteLogOutput 0 "Fine Esecuzione Script: $endTime"
WriteLogOutput 0 ""
WriteLogOutput 0 "Durata Esecuzione Script: $durataScript secondi"
WriteLogOutput 0 ""