# Build release archive for Windows (x86_64-pc-windows-msvc).
#
# Usage:
#   .\scripts\build-release-windows.ps1 [-Version <VERSION>]
#
# If -Version is not provided, it is read from Cargo.toml.
# Set GITEA_TOKEN (and optionally GITEA_SERVER_URL / GITEA_REPOSITORY)
# to upload the archive to a Gitea release automatically.
# These can be provided via scripts\.env.

param(
    [string]$Version = ""
)

Set-StrictMode -Version Latest
$ErrorActionPreference = "Stop"

$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$RepoRoot  = Split-Path -Parent $ScriptDir

# Load .env if present (existing env vars take precedence)
$EnvFile = Join-Path $ScriptDir ".env"
if (Test-Path $EnvFile) {
    Get-Content $EnvFile | ForEach-Object {
        if ($_ -match '^\s*#' -or $_ -match '^\s*$') { return }
        $parts = $_ -split '=', 2
        $key   = $parts[0].Trim()
        $value = $parts[1].Trim()
        if (-not [System.Environment]::GetEnvironmentVariable($key)) {
            [System.Environment]::SetEnvironmentVariable($key, $value, "Process")
        }
    }
}

# Determine version
if (-not $Version) {
    $cargoToml = Get-Content (Join-Path $RepoRoot "Cargo.toml") -Raw
    if ($cargoToml -match 'version\s*=\s*"([^"]+)"') {
        $Version = $Matches[1]
    } else {
        Write-Error "Could not determine version from Cargo.toml"
        exit 1
    }
}

$Tag    = "v$Version"
$Target = "x86_64-pc-windows-msvc"

Set-Location $RepoRoot

Write-Host "==> Building mdrs $Version for Windows ($Target)"

rustup target add $Target
cargo build --release --target $Target

$Archive = "mdrs-$Version-$Target.zip"
Compress-Archive -Force -Path "target\$Target\release\mdrs.exe" -DestinationPath $Archive
Write-Host "    Created: $Archive"

# Upload to Gitea if token is provided
$GiteaToken = [System.Environment]::GetEnvironmentVariable("GITEA_TOKEN")
if (-not $GiteaToken) {
    Write-Host ""
    Write-Host "GITEA_TOKEN not set -- skipping upload."
    Write-Host "Set GITEA_TOKEN (and GITEA_SERVER_URL, GITEA_REPOSITORY) in scripts\.env to enable upload."
    exit 0
}

$ServerUrl  = [System.Environment]::GetEnvironmentVariable("GITEA_SERVER_URL")
$Repository = [System.Environment]::GetEnvironmentVariable("GITEA_REPOSITORY")
if (-not $ServerUrl)  { Write-Error "GITEA_SERVER_URL is required for upload"; exit 1 }
if (-not $Repository) { Write-Error "GITEA_REPOSITORY is required for upload"; exit 1 }

$Headers = @{ Authorization = "Bearer $GiteaToken"; "Content-Type" = "application/json" }

Write-Host ""
Write-Host "==> Creating Gitea release $Tag ..."
try {
    Invoke-RestMethod -Method Post -Uri "$ServerUrl/api/v1/repos/$Repository/releases" `
        -Headers $Headers `
        -Body (ConvertTo-Json @{ tag_name = $Tag; name = $Tag }) | Out-Null
} catch {
    # Release may already exist; continue
}

$Release = Invoke-RestMethod -Method Get -Uri "$ServerUrl/api/v1/repos/$Repository/releases/tags/$Tag" `
    -Headers @{ Authorization = "Bearer $GiteaToken" }
$ReleaseId = $Release.id

Write-Host "==> Uploading $Archive (release id: $ReleaseId) ..."
$ArchivePath = Join-Path $RepoRoot $Archive
& curl.exe -sf -X POST `
    -H "Authorization: Bearer $GiteaToken" `
    -F "attachment=@$ArchivePath" `
    "$ServerUrl/api/v1/repos/$Repository/releases/$ReleaseId/assets" | Out-Null
if ($LASTEXITCODE -ne 0) { Write-Error "Upload failed (exit code $LASTEXITCODE)"; exit 1 }
Write-Host "    Done."

Write-Host ""
Write-Host "==> Upload complete: $ServerUrl/$Repository/releases/tag/$Tag"