[CmdletBinding()]
param(
    [Alias("h")]
    [switch]$Help,
    [string]$ApiHost = "127.0.0.1",
    [int]$Port = 3000,
    [string]$Log = "info,tower_http=info"
)

$ErrorActionPreference = "Stop"

function Write-Usage {
    @(
        'Usage:'
        '  ./server-rs/scripts/dev.ps1'
        '  ./server-rs/scripts/dev.ps1 -ApiHost 0.0.0.0 -Port 3100 -Log "debug,tower_http=debug"'
        ''
        'Notes:'
        '  1. Set default local env vars for the Rust api-server'
        '  2. Start Axum with cargo run -p api-server'
        '  3. This script only covers the api-server local dev loop'
    ) -join [Environment]::NewLine
}

if ($Help) {
    Write-Usage
    exit 0
}

$scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
$serverRsDir = Split-Path -Parent $scriptDir

if (-not (Test-Path (Join-Path $serverRsDir "Cargo.toml"))) {
    throw "Missing server-rs/Cargo.toml, cannot start local dev script."
}

$env:GENARRATIVE_API_HOST = $ApiHost
$env:GENARRATIVE_API_PORT = "$Port"
$env:GENARRATIVE_API_LOG = $Log

Write-Host "[server-rs:dev] working dir: $serverRsDir"
Write-Host "[server-rs:dev] GENARRATIVE_API_HOST=$($env:GENARRATIVE_API_HOST)"
Write-Host "[server-rs:dev] GENARRATIVE_API_PORT=$($env:GENARRATIVE_API_PORT)"
Write-Host "[server-rs:dev] GENARRATIVE_API_LOG=$($env:GENARRATIVE_API_LOG)"

Push-Location $serverRsDir
try {
    cargo run -p api-server --manifest-path (Join-Path $serverRsDir "Cargo.toml")
}
finally {
    Pop-Location
}