package entities

import (
	"time"

	"go.mongodb.org/mongo-driver/v2/bson"
)

const MaxTaskDepth = 2

// Task represents a task and supports up to 3 nesting levels (0,1,2).
type Task struct {
	ID           bson.ObjectID   `bson:"_id,omitempty"`
	SpaceID      bson.ObjectID   `bson:"space_id"`
	Title        string          `bson:"title"`
	Description  string          `bson:"description"`
	TaskListID   bson.ObjectID   `bson:"task_list_id"`
	StatusID     bson.ObjectID   `bson:"status_id"`
	ParentTaskID *bson.ObjectID  `bson:"parent_task_id,omitempty"`
	Depth        int             `bson:"depth"`
	NoteLinks    []bson.ObjectID `bson:"note_links"`
	CreatedBy    bson.ObjectID   `bson:"created_by"`
	UpdatedBy    bson.ObjectID   `bson:"updated_by"`
	CreatedAt    time.Time       `bson:"created_at"`
	UpdatedAt    time.Time       `bson:"updated_at"`
}

// TaskStatus defines the ordered linear status progression for a space.
type TaskStatus struct {
	ID        bson.ObjectID `bson:"_id,omitempty"`
	SpaceID   bson.ObjectID `bson:"space_id"`
	Name      string        `bson:"name"`
	Color     string        `bson:"color,omitempty"`
	Order     int           `bson:"order"`
	CreatedAt time.Time     `bson:"created_at"`
	UpdatedAt time.Time     `bson:"updated_at"`
}

// TaskList groups tasks under a named list that can be attached to a category.
type TaskList struct {
	ID          bson.ObjectID  `bson:"_id,omitempty"`
	SpaceID     bson.ObjectID  `bson:"space_id"`
	CategoryID  *bson.ObjectID `bson:"category_id,omitempty"`
	Name        string         `bson:"name"`
	Description string         `bson:"description,omitempty"`
	CreatedBy   bson.ObjectID  `bson:"created_by"`
	UpdatedBy   bson.ObjectID  `bson:"updated_by"`
	CreatedAt   time.Time      `bson:"created_at"`
	UpdatedAt   time.Time      `bson:"updated_at"`
}