package model

import (
	"encoding/json"
	"time"

	"gorm.io/gorm"
)

// SlaPolicy represents a SLA policy for response/resolution time targets.
// Reference: Chatwoot enterprise SlaPolicy + P2B M11 spec
type SlaPolicy struct {
	ID                    uint           `gorm:"primaryKey" json:"id"`
	AccountID             uint           `gorm:"not null;index" json:"account_id"`
	Name                  string         `gorm:"size:255;not null" json:"name"`
	Description           string         `gorm:"type:text" json:"description"`
	FirstResponseTimeThreshold int       `json:"first_response_time_threshold"` // seconds
	NextResponseTimeThreshold   int       `json:"next_response_time_threshold"` // seconds
	ResolutionTimeThreshold     int       `json:"resolution_time_threshold"` // seconds
	OnlyDuringBusinessHours      bool     `gorm:"default:false" json:"only_during_business_hours"`
	ConversationTags             []string `gorm:"type:text[]" json:"conversation_tags"`
	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"`
	AppliedSLAs   []AppliedSLA  `gorm:"foreignKey:SlaPolicyID" json:"applied_slas,omitempty"`
}

func (SlaPolicy) TableName() string { return "sla_policies" }