package domain

import (
	"context"
	"time"

	"gorm.io/datatypes"
)

// TrustMetrics represents trust and quality metrics for organizations and data
type TrustMetrics struct {
	ID             string         `gorm:"primaryKey;type:text"`
	OrganizationID string         `gorm:"type:text;not null;index"`
	MetricType     string         `gorm:"type:varchar(50);not null"` // organization, resource_flow, site
	MetricName     string         `gorm:"type:varchar(100);not null"`
	Value          float64        `gorm:"type:decimal(5,4)"` // 0.0 to 1.0
	Score          string         `gorm:"type:varchar(20)"`  // excellent, good, fair, poor
	Evidence       datatypes.JSON `gorm:"type:jsonb"`        // Supporting data
	LastUpdated    time.Time      `gorm:"autoUpdateTime"`
	ValidUntil     time.Time      `gorm:"index"`

	// Associations
	Organization *Organization `gorm:"foreignKey:OrganizationID"`
}

// TableName specifies the table name for GORM
func (TrustMetrics) TableName() string {
	return "trust_metrics"
}

// DataQualityProfile represents a comprehensive quality profile for an organization
type DataQualityProfile struct {
	OrganizationID   string         `json:"organization_id"`
	OverallScore     float64        `json:"overall_score"` // 0-1
	Completeness     float64        `json:"completeness"`  // 0-1
	Accuracy         float64        `json:"accuracy"`      // 0-1
	Timeliness       float64        `json:"timeliness"`    // 0-1
	Consistency      float64        `json:"consistency"`   // 0-1
	LastAssessed     time.Time      `json:"last_assessed"`
	AssessmentPeriod time.Duration  `json:"assessment_period"`
	Metrics          []TrustMetrics `json:"metrics"`
	Recommendations  []string       `json:"recommendations"`
	RiskFactors      []RiskFactor   `json:"risk_factors"`
}

// RiskFactor represents a risk factor affecting trust
type RiskFactor struct {
	Type        string  `json:"type"` // data_quality, verification, historical
	Description string  `json:"description"`
	Severity    float64 `json:"severity"` // 0-1
	Impact      string  `json:"impact"`   // low, medium, high
	Mitigation  string  `json:"mitigation"`
}

// TrustMetricsRepository defines the interface for trust metrics operations
type TrustMetricsRepository interface {
	Create(ctx context.Context, metric *TrustMetrics) error
	GetByOrganization(ctx context.Context, orgID string) ([]*TrustMetrics, error)
	GetByType(ctx context.Context, orgID, metricType string) ([]*TrustMetrics, error)
	Update(ctx context.Context, metric *TrustMetrics) error
	Delete(ctx context.Context, id string) error
	GetLatestProfile(ctx context.Context, orgID string) (*DataQualityProfile, error)
}

// VerificationStatus represents verification status for data elements
type VerificationStatus string

const (
	VerificationUnverified VerificationStatus = "unverified"
	VerificationPending    VerificationStatus = "pending"
	VerificationVerified   VerificationStatus = "verified"
	VerificationRejected   VerificationStatus = "rejected"
)

// VerifiedData represents verified data elements
type VerifiedData struct {
	ID             string             `gorm:"primaryKey;type:text"`
	OrganizationID string             `gorm:"type:text;not null;index"`
	DataType       string             `gorm:"type:varchar(50);not null"` // organization, resource_flow, site
	DataID         string             `gorm:"type:text;not null"`
	Status         VerificationStatus `gorm:"type:varchar(20);default:'unverified'"`
	VerifiedBy     string             `gorm:"type:text"`
	VerifiedAt     *time.Time         `gorm:"index"`
	Evidence       datatypes.JSON     `gorm:"type:jsonb"`
	ExpiresAt      *time.Time         `gorm:"index"`
	Notes          string             `gorm:"type:text"`

	// Associations
	Organization *Organization `gorm:"foreignKey:OrganizationID"`
}

// TableName specifies the table name for GORM
func (VerifiedData) TableName() string {
	return "verified_data"
}

// HistoricalSuccess represents historical success metrics
type HistoricalSuccess struct {
	ID             string         `gorm:"primaryKey;type:text"`
	OrganizationID string         `gorm:"type:text;not null;index"`
	MatchID        string         `gorm:"type:text;index"`
	MetricType     string         `gorm:"type:varchar(50);not null"` // completion_rate, satisfaction, volume
	Value          float64        `gorm:"type:decimal(5,4)"`
	Period         string         `gorm:"type:varchar(20)"` // monthly, quarterly, yearly
	RecordedAt     time.Time      `gorm:"not null;index"`
	Data           datatypes.JSON `gorm:"type:jsonb"` // Additional context

	// Associations
	Organization *Organization `gorm:"foreignKey:OrganizationID"`
}

// TableName specifies the table name for GORM
func (HistoricalSuccess) TableName() string {
	return "historical_success"
}

// TrustScore represents an overall trust score for an organization
type TrustScore struct {
	OrganizationID    string             `json:"organization_id"`
	OverallScore      float64            `json:"overall_score"`      // 0-1
	DataQualityScore  float64            `json:"data_quality_score"` // 0-1
	VerificationScore float64            `json:"verification_score"` // 0-1
	HistoricalScore   float64            `json:"historical_score"`   // 0-1
	PeerReviewScore   float64            `json:"peer_review_score"`  // 0-1
	LastCalculated    time.Time          `json:"last_calculated"`
	ConfidenceLevel   float64            `json:"confidence_level"` // 0-1
	ScoreBreakdown    map[string]float64 `json:"score_breakdown"`
	RiskFactors       []RiskFactor       `json:"risk_factors"`
	Recommendations   []string           `json:"recommendations"`
}