package model

import (
	"encoding/json"
	"time"

	"gorm.io/gorm"
)

// Call represents a voice call session.
// Reference: Chatwoot Call model + P2B M11 spec
type Call struct {
	ID                   uint            `gorm:"primaryKey" json:"id"`
	AccountID            uint            `gorm:"not null;index" json:"account_id"`
	InboxID              uint            `gorm:"index" json:"inbox_id,omitempty"`
	ConversationID       uint            `gorm:"not null;index" json:"conversation_id"`
	ContactID            uint            `gorm:"index" json:"contact_id,omitempty"`
	MessageID            *uint           `gorm:"column:message_id;index" json:"message_id,omitempty"`
	AcceptedByAgentID    *uint           `gorm:"column:accepted_by_agent_id;index" json:"accepted_by_agent_id,omitempty"`
	Provider             string          `gorm:"column:provider;size:50;default:'twilio';index:idx_calls_provider_call_id" json:"provider,omitempty"`
	Direction            string          `gorm:"column:direction;size:50" json:"direction,omitempty"`
	ProviderCallID       string          `gorm:"column:provider_call_id;size:255;index:idx_calls_provider_call_id" json:"provider_call_id,omitempty"`
	ConferenceSID        string          `gorm:"column:conference_sid;size:255" json:"conference_sid,omitempty"`
	StartedAt            *time.Time      `gorm:"column:started_at" json:"started_at,omitempty"`
	CallerType           string          `gorm:"size:100;not null" json:"caller_type"` // Contact/User
	CallerID             uint            `json:"caller_id"`
	Status               string          `gorm:"size:50;not null;default:'ringing'" json:"status"` // ringing/ongoing/completed/failed/missed
	Duration             int             `json:"duration"`                                         // seconds
	EndReason            string          `gorm:"column:end_reason;size:255" json:"end_reason,omitempty"`
	CallDirection        string          `gorm:"size:50;not null" json:"call_direction"` // inbound/outbound
	RecordingURL         string          `gorm:"size:512" json:"recording_url"`
	AdditionalAttributes json.RawMessage `gorm:"type:jsonb" json:"additional_attributes"`
	CreatedAt            time.Time       `gorm:"autoCreateTime" json:"created_at"`
	UpdatedAt            time.Time       `gorm:"autoUpdateTime" json:"updated_at"`
	DeletedAt            gorm.DeletedAt  `gorm:"index" json:"deleted_at,omitempty"`

	Account         Account      `gorm:"foreignKey:AccountID" json:"account,omitempty"`
	Conversation    Conversation `gorm:"foreignKey:ConversationID" json:"conversation,omitempty"`
	Inbox           Inbox        `gorm:"foreignKey:InboxID" json:"inbox,omitempty"`
	Contact         Contact      `gorm:"foreignKey:ContactID" json:"contact,omitempty"`
	Message         Message      `gorm:"foreignKey:MessageID" json:"message,omitempty"`
	AcceptedByAgent User         `gorm:"foreignKey:AcceptedByAgentID" json:"accepted_by_agent,omitempty"`
}

func (Call) TableName() string { return "calls" }