engine

const (
	// Generic
	ModeSuccess FailureMode = "success"

	// Bank-side
	ModeBankDeclineHard FailureMode = "bank_decline_hard"
	ModeBankDeclineSoft FailureMode = "bank_decline_soft"
	ModeBankServerDown  FailureMode = "bank_server_down"
	ModeBankTimeout     FailureMode = "bank_timeout"
	ModeBankInvalidCVV  FailureMode = "bank_invalid_cvv"
	ModeBankDoNotHonour FailureMode = "bank_do_not_honour"

	// PG server-side
	ModePGServerError FailureMode = "pg_server_error"
	ModePGTimeout     FailureMode = "pg_timeout"
	ModePGRateLimited FailureMode = "pg_rate_limited"
	ModePGMaintenance FailureMode = "pg_maintenance"
	ModeNetworkError  FailureMode = "network_error"

	// Webhook anomalies
	ModeWebhookMissing    FailureMode = "webhook_missing"
	ModeWebhookDelayed    FailureMode = "webhook_delayed"
	ModeWebhookDuplicate  FailureMode = "webhook_duplicate"
	ModeWebhookOutOfOrder FailureMode = "webhook_out_of_order"
	ModeWebhookMalformed  FailureMode = "webhook_malformed"

	// Redirect / 3DS
	ModeRedirectSuccess   FailureMode = "redirect_success"
	ModeRedirectAbandoned FailureMode = "redirect_abandoned"
	ModeRedirectTimeout   FailureMode = "redirect_timeout"
	ModeRedirectFailed    FailureMode = "redirect_failed"

	// Charge anomalies
	ModeDoubleCharge   FailureMode = "double_charge"
	ModeAmountMismatch FailureMode = "amount_mismatch"
	ModePartialSuccess FailureMode = "partial_success"

	// Async state transitions
	ModePendingThenFailed   FailureMode = "pending_then_failed"
	ModePendingThenSuccess  FailureMode = "pending_then_success"
	ModeFailedThenSuccess   FailureMode = "failed_then_success"
	ModeSuccessThenReversed FailureMode = "success_then_reversed"
)