package db

import "time"

// ApprovalStatus defines the lifecycle states for a tool call approval.
type ApprovalStatus string

const (
	ApprovalStatusApproved ApprovalStatus = "approved"
	ApprovalStatusDenied   ApprovalStatus = "denied"
	ApprovalStatusPending  ApprovalStatus = "pending"
)

// Approval represents a tool call awaiting or resolved by user permission.
type Approval struct {
	CreatedAt  time.Time      `json:"created_at"`
	Id         string         `json:"id"`
	MessageId  string         `json:"message_id"`
	Status     ApprovalStatus `json:"status"`
	ToolCallId string         `json:"tool_call_id"`
	UpdatedAt  time.Time      `json:"updated_at"`
}

// Conversation represents a stored conversation.
type Conversation struct {
	CreatedAt time.Time `json:"created_at"`
	Id        string    `json:"id"`
	Title     *string   `json:"title"`
	UpdatedAt time.Time `json:"updated_at"`
	UserId    string    `json:"user_id"`
}

// MessageRole defines the permitted roles for messages.
type MessageRole string

const (
	MessageRoleSystem    MessageRole = "system"
	MessageRoleDeveloper MessageRole = "developer"
	MessageRoleUser      MessageRole = "user"
	MessageRoleAssistant MessageRole = "assistant"
	MessageRoleTool      MessageRole = "tool"
)

// Message represents a stored chat message. Content holds the
// wire-format JSON for the message — the exact JSON object that
// appears in the OpenAI Chat Completions messages array.
type Message struct {
	Content        string      `json:"content"`
	ConversationId string      `json:"conversation_id"`
	CreatedAt      time.Time   `json:"created_at"`
	Id             string      `json:"id"`
	Role           MessageRole `json:"role"`
	Sequence       int         `json:"sequence"`
	UpdatedAt      time.Time   `json:"updated_at"`
}

// Session represents a user login session.
type Session struct {
	CreatedAt     time.Time  `json:"created_at"`
	DeactivatedAt *time.Time `json:"deactivated_at"`
	Id            string     `json:"id"`
	UpdatedAt     time.Time  `json:"updated_at"`
	UserId        string     `json:"user_id"`
}

// UserRole defines the permitted roles for users.
type UserRole string

const (
	UserRoleOwner UserRole = "owner"
)

// User represents a stored user account.
type User struct {
	CreatedAt     time.Time  `json:"created_at"`
	DeactivatedAt *time.Time `json:"deactivated_at"`
	Id            string     `json:"id"`
	Name          string     `json:"name"`
	Password      string     `json:"password"`
	Role          UserRole   `json:"role"`
	UpdatedAt     time.Time  `json:"updated_at"`
}