# Volume Discovery — Work Orders
# Executa queries do volume-discovery-report.md contra staging/prod read-only.
#
# Uso:
#   $env:SQL_CONNECTION_STRING = "Server=...;Database=...;User Id=...;Password=...;TrustServerCertificate=True"
#   .\scripts\volume-discovery.ps1

param(
    [string]$ConnectionString = $env:SQL_CONNECTION_STRING
)

function Get-SqlConnectionArgs([string]$cs) {
    return @("-C", $cs)
}

if ([string]::IsNullOrWhiteSpace($ConnectionString)) {
    Write-Error "Defina SQL_CONNECTION_STRING ou passe -ConnectionString."
    exit 1
}

$queries = @{
    TotalWorkOrders = @"
SELECT COUNT(*) AS TotalWorkOrders
FROM workOrders
WHERE IsDeleted IS NULL OR IsDeleted = 0;
"@
    P95ProxyMaxPerWeek = @"
WITH WeeklyCounts AS (
    SELECT DATEPART(iso_week, ScheduledDate) AS IsoWeek,
           YEAR(ScheduledDate) AS IsoYear,
           COUNT(*) AS Cnt
    FROM workOrders
    WHERE ScheduledDate IS NOT NULL
      AND (IsDeleted IS NULL OR IsDeleted = 0)
    GROUP BY DATEPART(iso_week, ScheduledDate), YEAR(ScheduledDate)
)
SELECT MAX(Cnt) AS P95ProxyMaxPerWeek,
       AVG(Cnt * 1.0) AS AvgPerWeek
FROM WeeklyCounts;
"@
    UnscheduledCount = @"
SELECT COUNT(*) AS UnscheduledCount
FROM workOrders
WHERE ScheduledDate IS NULL
  AND (IsDeleted IS NULL OR IsDeleted = 0)
  AND Status NOT IN ('Completed', 'Complete', 'Cancelled', 'Canceled');
"@
}

$connArgs = Get-SqlConnectionArgs $ConnectionString

Write-Host "=== Volume Discovery ===" -ForegroundColor Cyan
Write-Host ""

foreach ($name in $queries.Keys) {
    Write-Host "--- $name ---" -ForegroundColor Yellow
    sqlcmd @connArgs -Q $queries[$name] -W
    Write-Host ""
}

Write-Host "Preencha docs/work-orders/phase-0/volume-discovery-report.md e docs/work-orders/phase-4/search-tier-decision.md com os resultados."