package model

import (
	"gorm.io/datatypes"
)

// Message represents a message within a conversation.
type Message struct {
	Base
	ConversationID       uint           `gorm:"index;not null" json:"conversation_id"`
	AccountID            uint           `gorm:"index;not null" json:"account_id"`
	InboxID              uint           `gorm:"index;not null;uniqueIndex:idx_messages_swt_source,priority:1,where:source_id LIKE 'swt:%'" json:"inbox_id"`
	SenderID             *uint          `gorm:"index" json:"sender_id,omitempty"`
	SenderType           string         `gorm:"size:50" json:"sender_type"` // contact, agent, bot
	Content              string         `gorm:"type:text" json:"content"`
	ContentType          string         `gorm:"size:50;default:text" json:"content_type"` // text, input, input_csat, file, image, etc
	Status               string         `gorm:"size:50;default:sent" json:"status"`       // progress, sent, delivered, read, failed
	Private              bool           `gorm:"default:false" json:"private"`
	EchoID               string         `gorm:"size:255" json:"echo_id,omitempty"`
	SourceID             string         `gorm:"size:255;uniqueIndex:idx_messages_swt_source,priority:2,where:source_id LIKE 'swt:%'" json:"source_id,omitempty"`
	MessageType          string         `gorm:"size:50;default:incoming" json:"message_type"` // incoming, outgoing, activity, template
	External             bool           `gorm:"default:false" json:"external"`
	ContentAttributes    datatypes.JSON `gorm:"type:jsonb" json:"content_attributes,omitempty"` // attachments, mentions, etc
	AdditionalAttributes datatypes.JSON `gorm:"type:jsonb" json:"additional_attributes,omitempty"`
	ExternalSourceIDs    datatypes.JSON `gorm:"type:jsonb" json:"external_source_ids,omitempty"` // external platform IDs
	ExternalRequestHash  string         `gorm:"size:64" json:"-"`
	IdempotentReplay     bool           `gorm:"-" json:"idempotent_replay,omitempty"`
	AITakeoverExited     bool           `gorm:"-" json:"ai_takeover_exited,omitempty"`

	Conversation *Conversation `gorm:"foreignKey:ConversationID" json:"conversation,omitempty"`
	Attachments  []Attachment  `gorm:"foreignKey:MessageID" json:"attachments,omitempty"`
}

func (Message) TableName() string { return "messages" }