package domain

import "time"

type AccountStatus string

const (
	AccountStatusActive        AccountStatus = "active"
	AccountStatusSuspended     AccountStatus = "suspended"
	AccountStatusDisabled      AccountStatus = "disabled"
	AccountStatusPendingVerify AccountStatus = "pending_verify"
	AccountStatusPendingEnable AccountStatus = "pending_enable"
)

type ProbeClassification string

const (
	ProbeClassificationSuccess         ProbeClassification = "success"
	ProbeClassificationExplicitFailure ProbeClassification = "explicit_failure"
	ProbeClassificationInconclusive    ProbeClassification = "inconclusive"
)

type DiscoveryCandidateStatus string

const (
	DiscoveryCandidateStatusDiscovered       DiscoveryCandidateStatus = "discovered"
	DiscoveryCandidateStatusTesting          DiscoveryCandidateStatus = "testing"
	DiscoveryCandidateStatusPendingAdmission DiscoveryCandidateStatus = "pending_admission"
	DiscoveryCandidateStatusAdmitted         DiscoveryCandidateStatus = "admitted"
	DiscoveryCandidateStatusTestPassed       DiscoveryCandidateStatus = "test_passed"
	DiscoveryCandidateStatusTestFailed       DiscoveryCandidateStatus = "test_failed"
	DiscoveryCandidateStatusRetryPending     DiscoveryCandidateStatus = "retry_pending"
	DiscoveryCandidateStatusIgnored          DiscoveryCandidateStatus = "ignored"
	DiscoveryCandidateStatusPublished        DiscoveryCandidateStatus = "published"
	DiscoveryCandidateStatusDeprecated       DiscoveryCandidateStatus = "deprecated"
	DiscoveryCandidateStatusClosed           DiscoveryCandidateStatus = "closed"
)

type GatewaySyncStatus string

const (
	GatewaySyncStatusPending GatewaySyncStatus = "pending"
	GatewaySyncStatusApplied GatewaySyncStatus = "applied"
	GatewaySyncStatusFailed  GatewaySyncStatus = "failed"
)

type GatewayAckResult string

const (
	GatewayAckResultPending GatewayAckResult = "pending"
	GatewayAckResultApplied GatewayAckResult = "applied"
	GatewayAckResultFailed  GatewayAckResult = "failed"
)

func (r GatewayAckResult) SyncStatus() GatewaySyncStatus {
	switch r {
	case GatewayAckResultApplied:
		return GatewaySyncStatusApplied
	case GatewayAckResultFailed:
		return GatewaySyncStatusFailed
	default:
		return GatewaySyncStatusPending
	}
}

type GatewayFailureCategory string

const (
	GatewayFailureCategoryTemporaryNetwork     GatewayFailureCategory = "temporary_network"
	GatewayFailureCategoryTemporaryTimeout     GatewayFailureCategory = "temporary_timeout"
	GatewayFailureCategoryTemporary5xx         GatewayFailureCategory = "temporary_5xx"
	GatewayFailureCategoryTemporaryUnavailable GatewayFailureCategory = "temporary_unavailable"
	GatewayFailureCategoryContractInvalid      GatewayFailureCategory = "contract_invalid"
	GatewayFailureCategoryAuthForbidden        GatewayFailureCategory = "auth_forbidden"
	GatewayFailureCategoryIdempotencyConflict  GatewayFailureCategory = "idempotency_conflict"
	GatewayFailureCategoryBusinessRejected     GatewayFailureCategory = "business_rejected"
	GatewayFailureCategoryUnknown              GatewayFailureCategory = "unknown"
)

type ProbeResult struct {
	AccountID      int64
	Classification ProbeClassification
	ReasonCode     string
	ObservedAt     time.Time
}

// SupplyAccount represents a platform account with credentials for API access.
type SupplyAccount struct {
	AccountID   int64     `json:"account_id"`
	Platform    string    `json:"platform"`
	APIKey      string    `json:"api_key"`
	ConsumerTag string    `json:"consumer_tag"` // gateway consumer that owns this account
	Status      string    `json:"status"`       // 'active' | 'suspended'
	CreatedAt   time.Time `json:"created_at"`
	UpdatedAt   time.Time `json:"updated_at"`
}

type AccountRoutingState struct {
	AccountID      int64         `json:"account_id"`
	Platform       string        `json:"platform"`
	APIKey         string        `json:"api_key,omitempty"`
	AccountStatus  AccountStatus `json:"account_status"`
	RoutingEnabled bool          `json:"routing_enabled"`
	RiskScore      int           `json:"risk_score"`
	ReasonCode     string        `json:"reason_code"`
	LastProbeAt    time.Time     `json:"last_probe_at"`
	Version        int64         `json:"version"`
}

type PackageChangeEvent struct {
	EventID             string                 `json:"event_id"`
	AccountID           int64                  `json:"account_id"`
	EventType           string                 `json:"event_type"`
	PackageID           int64                  `json:"package_id"`
	Platform            string                 `json:"platform"`
	Model               string                 `json:"model"`
	OccurredAt          time.Time              `json:"occurred_at"`
	Version             int64                  `json:"version"`
	GatewaySyncStatus   GatewaySyncStatus      `json:"gateway_sync_status"`
	Consumer            string                 `json:"consumer,omitempty"`
	ConsumerDetail      string                 `json:"consumer_detail,omitempty"`
	AckedAt             *time.Time             `json:"acked_at,omitempty"`
	RetryCount          int                    `json:"retry_count"`
	LastRetryAt         *time.Time             `json:"last_retry_at,omitempty"`
	NextRetryAt         *time.Time             `json:"next_retry_at,omitempty"`
	LastFailureCategory GatewayFailureCategory `json:"last_failure_category,omitempty"`
	LastFailureDetail   string                 `json:"last_failure_detail,omitempty"`
}

type PackageChangeAck struct {
	EventID   string            `json:"event_id"`
	Consumer  string            `json:"consumer"`
	Result    GatewayAckResult  `json:"result"`
	Detail    string            `json:"detail,omitempty"`
	AckedAt   time.Time         `json:"acked_at"`
	SyncState GatewaySyncStatus `json:"gateway_sync_status"`
}

type GatewayAppliedSnapshot struct {
	Consumer           string    `json:"consumer"`
	LastEventID        string    `json:"last_event_id"`
	LastPackageID      int64     `json:"last_package_id"`
	LastPlatform       string    `json:"last_platform"`
	LastModel          string    `json:"last_model"`
	LastAppliedVersion int64     `json:"last_applied_version"`
	LastResult         string    `json:"last_result"`
	UpdatedAt          time.Time `json:"updated_at"`
}

type DiscoveryCandidate struct {
	CandidateID  string                   `json:"candidate_id"`
	AccountID    int64                    `json:"account_id"`
	Platform     string                   `json:"platform"`
	Model        string                   `json:"model"`
	Source       string                   `json:"source"`
	Status       DiscoveryCandidateStatus `json:"status"`
	ReasonCode   string                   `json:"reason_code,omitempty"`
	DiscoveredAt time.Time                `json:"discovered_at"`
	UpdatedAt    time.Time                `json:"updated_at"`
	Version      int64                    `json:"version"`
}

// SupplyPackage represents a supply package in the system
type SupplyPackage struct {
	PackageID int64     `json:"package_id"`
	Platform  string    `json:"platform"`
	Model     string    `json:"model"`
	Status    string    `json:"status"` // draft, active, deprecated
	Source    string    `json:"source"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
	Version   int64     `json:"version"`
}

// ProbeExecutionLog records a probe result for historical tracking
type ProbeExecutionLog struct {
	LogID               int64     `json:"log_id"`
	AccountID           int64     `json:"account_id"`
	Platform            string    `json:"platform"`
	ProbeResult         string    `json:"probe_result"`
	FailureClass        string    `json:"failure_class,omitempty"`
	HTTPStatus          int       `json:"http_status,omitempty"`
	LatencyMs           int       `json:"latency_ms,omitempty"`
	RiskScore           int       `json:"risk_score"`
	EvaluatedTransition string    `json:"evaluated_transition"`
	ExecutedAt          time.Time `json:"executed_at"`
	RequestID           string    `json:"request_id"`
	Version             int64     `json:"version"`
}

// AdmissionTestLog records a single admission test run for audit/history.
// TestID is auto-generated by the underlying store (DB serial or in-memory counter).
type AdmissionTestLog struct {
	TestID         int64     `json:"test_id,omitempty"`
	CandidateID    string    `json:"candidate_id"`
	Status         string    `json:"status"` // passed, failed
	FailureCode    string    `json:"failure_code,omitempty"`
	FailureSummary string    `json:"failure_summary,omitempty"`
	TestedAt       time.Time `json:"tested_at"`
	Version        int64     `json:"version,omitempty"`
}