# Instalador para Windows (PowerShell).
#
# Solo hace falta para RECONSTRUIR los datos. Para USAR el visor no se instala
# nada: se abre out\visor.html haciendo doble clic.
#
# Si Windows bloquea el script:
#   Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
#   .\install.ps1

$ErrorActionPreference = "Stop"
Set-Location -Path $PSScriptRoot

Write-Host "== RAVE SCOUT / EXPLORER ==" -ForegroundColor Cyan

# --- python ---
$py = $null
foreach ($c in @("py -3", "python", "python3")) {
    try {
        $exe, $arg = $c.Split(" ", 2)
        $v = & $exe $arg -c "import sys;print(sys.version_info>=(3,9))" 2>$null
        if ($v -eq "True") { $py = $c; break }
    } catch { }
}
if (-not $py) {
    Write-Host "Falta Python 3.9 o superior." -ForegroundColor Red
    Write-Host "  Descarga: https://www.python.org/downloads/"
    Write-Host "  O bien:   winget install Python.Python.3.12"
    Write-Host "  Marca 'Add Python to PATH' durante la instalacion."
    exit 1
}
$exe, $arg = $py.Split(" ", 2)
Write-Host ("Python: " + (& $exe $arg -V))

# --- entorno ---
if (-not (Test-Path ".venv")) { & $exe $arg -m venv .venv }
& ".\.venv\Scripts\python.exe" -m pip -q install --upgrade pip
Write-Host "Instalando dependencias..."
& ".\.venv\Scripts\python.exe" -m pip -q install -r requirements.txt

# --- comprobacion ---
$chk = @"
import importlib, sys
faltan = [m for m in ('numpy','scipy','rasterio','osmium','shapely','pyproj',
                      'requests','PIL') if not importlib.util.find_spec(m)]
if faltan:
    print('FALTAN: ' + ', '.join(faltan)); sys.exit(1)
print('Dependencias correctas.')
"@
$chk | & ".\.venv\Scripts\python.exe" -
if ($LASTEXITCODE -ne 0) { exit 1 }

Write-Host ""
Write-Host "Listo." -ForegroundColor Green
Write-Host "  Abrir el visor:     .\abrir.ps1"
Write-Host "  Ver paises:         .\.venv\Scripts\python.exe src\regions.py"
Write-Host "  Reconstruir Espana: .\.venv\Scripts\python.exe src\stars.py"
Write-Host "  Otro pais:          `$env:REGION='pt'; .\.venv\Scripts\python.exe src\stars.py"