#!/usr/bin/env nu
# Derived variables for stalwart bundle rendering.
# Receives component record as JSON argument, outputs extra vars as JSON.
# Keys are lowercase to match NCL field convention — merged into the stalwart tera context.

def main [component_json: string]: nothing -> nothing {
    let s = ($component_json | from json)
    let relay_tls = ($s | get -o relay | default {} | get -o tls | default true)
    {
        relay_tls_value: (if $relay_tls { "require" } else { "opportunistic" }),
        relay_name:      ($s | get -o relay | default {} | get -o name | default "ses"),
        tls_cert_path:   "/etc/stalwart/tls/tls.crt",
        tls_key_path:    "/etc/stalwart/tls/tls.key",
        tls_mount_path:  "/etc/stalwart/tls",
        config_mount:    "/etc/stalwart",
    }
    | to json --raw
    | print
}