package model

import (
	"time"
)

// Permissible represents a permission rule linking a PlatformApp to an authorized resource.
// Reference: Chatwoot PlatformAppPermissible + P2B M12 spec (polymorphic Permissible pattern)
//
// Each Permissible record means "PlatformApp X can operate on Resource Y".
// Resource types (PermissibleType) include: Account, User, AgentBot.
// When a PlatformApp creates a user/account/agent_bot, a Permissible record is auto-created
// to grant the PlatformApp access to that resource.
type Permissible struct {
	ID              uint      `gorm:"primaryKey;autoIncrement" json:"id"`
	PlatformAppID   uint      `gorm:"not null;uniqueIndex:idx_permissibles_unique" json:"platform_app_id"`
	PermissibleType string    `gorm:"size:100;not null;uniqueIndex:idx_permissibles_unique;index" json:"permissible_type"` // Account, User, AgentBot
	PermissibleID   uint      `gorm:"not null;uniqueIndex:idx_permissibles_unique;index" json:"permissible_id"`
	CreatedAt       time.Time `gorm:"autoCreateTime" json:"created_at"`
	UpdatedAt       time.Time `gorm:"autoUpdateTime" json:"updated_at"`

	PlatformApp PlatformApp `gorm:"foreignKey:PlatformAppID" json:"platform_app,omitempty"`
}

func (Permissible) TableName() string { return "permissibles" }

// PermissibleTypes — valid polymorphic types for the Permissible model.
const (
	PermissibleTypeAccount  = "Account"
	PermissibleTypeUser     = "User"
	PermissibleTypeAgentBot = "AgentBot"
)