package tools

import "strings"

const EnvSendMessageProductionEnabled = "ISPHERE_SEND_PRODUCTION_ENABLED"

type SendMessageGatePolicy struct {
	ProductionAllowed   bool
	ReasonCode          string
	ReasonMessage       string
	EvidenceGatePass    bool
	ConnectorConfigured bool
}

func LoadSendMessageGatePolicy(env map[string]string, evidenceGatePass bool, connectorConfigured bool) SendMessageGatePolicy {
	policy := SendMessageGatePolicy{
		EvidenceGatePass:    evidenceGatePass,
		ConnectorConfigured: connectorConfigured,
	}
	if !sendMessageProductionEnabled(env) {
		policy.ReasonCode = "send_disabled_by_default"
		policy.ReasonMessage = "production send is disabled by default; set ISPHERE_SEND_PRODUCTION_ENABLED=1 only after the evidence and connector gates pass"
		return policy
	}
	if !evidenceGatePass {
		policy.ReasonCode = "send_evidence_missing"
		policy.ReasonMessage = "production send is blocked until dynamic observation, idempotency audit, and one approved sandbox send gate pass"
		return policy
	}
	if !connectorConfigured {
		policy.ReasonCode = "send_connector_missing"
		policy.ReasonMessage = "production send is blocked because no validated send connector is configured"
		return policy
	}
	policy.ProductionAllowed = true
	policy.ReasonCode = "send_gate_passed"
	policy.ReasonMessage = "production send gate passed"
	return policy
}

func sendMessageProductionEnabled(env map[string]string) bool {
	if env == nil {
		return false
	}
	value := strings.TrimSpace(strings.ToLower(env[EnvSendMessageProductionEnabled]))
	return value == "1" || value == "true" || value == "yes"
}