// Package hfprecheck implements the HF on_call coverage check used by
// dialectic_signup. The OpenClaw plugin relied on a cross-plugin global
// (`globalThis.__hfAgentStatus.hasOnCallCovering`) which HarborForge
// hadn't shipped yet — so v1 there always degraded to "skipped".
//
// Plexum has no cross-plugin globals at all. v1 here is unconditionally
// "skipped" (same audit-only outcome as OpenClaw v1). When HarborForge
// the backend grows a public coverage endpoint we'll wire it here.
package hfprecheck

import "os"

type Result struct {
	OK     bool   // false ⇒ block signup
	Reason string // populated when OK=false
	Source string // "hf" | "skipped"
}

// Check is a no-op gate for v1. Returns OK=true, source="skipped"
// unconditionally; signups are sent to the backend with
// pre_validated=false so the audit trail records the gap honestly.
//
// DIALECTIC_PLUGIN_BYPASS_HF=1 forces "skipped" even after a future
// implementation lands — matches the OpenClaw plugin's escape hatch
// for sim environments without provisioned on_call schedules.
func Check(agentID, debateStartAt, debateEndAt string) Result {
	if os.Getenv("DIALECTIC_PLUGIN_BYPASS_HF") == "1" {
		return Result{OK: true, Source: "skipped"}
	}
	// No host-side coverage query yet; degrade to audit-only.
	return Result{OK: true, Source: "skipped"}
}