package model

import (
	"encoding/json"
	"time"
)

// Audit represents an audit log entry for enterprise compliance.
// Reference: Chatwoot enterprise Audit model + P2B M11 spec
type Audit struct {
	ID              uint            `gorm:"primaryKey" json:"id"`
	AccountID       *uint           `gorm:"index" json:"account_id,omitempty"`
	UserID          *uint           `gorm:"index" json:"user_id,omitempty"`
	AuditableType   string          `gorm:"size:100;not null;index" json:"auditable_type"` // Conversation/Message/Contact/User/Inbox/Account
	AuditableID     uint            `gorm:"not null;index" json:"auditable_id"`
	Action          string          `gorm:"size:100;not null;index" json:"action"` // create/update/delete/assign/unassign/...
	AuditedChanges  json.RawMessage `gorm:"type:jsonb;column:audited_changes" json:"audited_changes"`
	AssociatedType  string          `gorm:"size:100" json:"associated_type,omitempty"` // typically Account
	AssociatedID    *uint           `gorm:"index" json:"associated_id,omitempty"`
	Username        string          `gorm:"size:255" json:"username,omitempty"` // operator email, auto-filled
	RemoteAddress   string          `gorm:"size:50" json:"remote_address,omitempty"` // IP address
	RequestUUID     string          `gorm:"size:50" json:"request_uuid,omitempty"` // request unique identifier
	Version         *int            `json:"version,omitempty"`
	Comment         string          `gorm:"size:500" json:"comment,omitempty"`
	UserType        string          `gorm:"size:50" json:"user_type,omitempty"`
	CreatedAt       time.Time       `gorm:"autoCreateTime;index" json:"created_at"`

	Account *Account `gorm:"foreignKey:AccountID" json:"account,omitempty"`
	User    *User    `gorm:"foreignKey:UserID" json:"user,omitempty"`
}

func (Audit) TableName() string { return "audits" }