#!/usr/bin/env nu
# scripts/check-gate.nu
# Query the vapora gate ontology for a given signal.
# Exits 0 if at least one active membrana accepts the signal, 1 otherwise.
#
# Usage:
#   nu scripts/check-gate.nu --ontology .ontology --signal DepthDemonstrated
#   nu scripts/check-gate.nu --ontology .ontology --signal PreguntaQueRompeElMarco --verbose

def main [
    --ontology: path = ".ontology",   # Path to the project .ontology directory
    --signal: string = "",            # Signal to check (TipoSenal variant name)
    --verbose,                        # Print full membrana details
] {
    if ($signal | is-empty) {
        error make { msg: "required flag --signal is missing" }
    }

    let gate_file = $ontology | path join "gate.ncl"

    if not ($gate_file | path exists) {
        error make { msg: $"gate.ncl not found at '($gate_file)'" }
    }

    let result = do { ^nickel export --format json $gate_file } | complete
    if $result.exit_code != 0 {
        error make { msg: $"nickel export failed: ($result.stderr | str trim)" }
    }

    let config = $result.stdout | from json
    let membranas = $config.membranas

    let accepting = $membranas | where { |m|
        $m.activa and ($m.acepta | any { |s| $s == $signal })
    }

    if $verbose {
        print $"Signal: ($signal)"
        print $"Active membranas checked: ($membranas | where activa | length)"
        if not ($accepting | is-empty) {
            print "Accepting membranas:"
            $accepting | each { |m|
                print $"  ✓ ($m.id) [permeabilidad=($m.permeabilidad)] — ($m.descripcion)"
            } | ignore
        } else {
            print "No active membrana accepts this signal."
        }
    }

    if ($accepting | is-empty) {
        print $"gate: BLOCKED — no active membrana accepts signal '($signal)'"
        exit 1
    }

    print $"gate: PASS — ($accepting | length) membrana(s) accept signal '($signal)'"
}