package model

import (
	"database/sql"
	"time"
)

type Task struct {
	ID          int64        `db:"id" json:"id"`
	UserID      int64        `db:"user_id" json:"user_id"`
	Title       string       `db:"title" json:"title"`
	Description string       `db:"description" json:"description"`
	Icon        string       `db:"icon" json:"icon"`
	Color       string       `db:"color" json:"color"`
	DueDate     sql.NullTime `db:"due_date" json:"-"`
	DueDateStr  *string      `db:"-" json:"due_date"`
	Priority    int          `db:"priority" json:"priority"` // 0=none, 1=low, 2=medium, 3=high
	CompletedAt sql.NullTime `db:"completed_at" json:"-"`
	Completed   bool         `db:"-" json:"completed"`
	CreatedAt   time.Time    `db:"created_at" json:"created_at"`
	UpdatedAt   time.Time    `db:"updated_at" json:"updated_at"`
}

func (t *Task) ProcessForJSON() {
	if t.DueDate.Valid {
		s := t.DueDate.Time.Format("2006-01-02")
		t.DueDateStr = &s
	}
	t.Completed = t.CompletedAt.Valid
}

type CreateTaskRequest struct {
	Title       string  `json:"title"`
	Description string  `json:"description,omitempty"`
	Icon        string  `json:"icon,omitempty"`
	Color       string  `json:"color,omitempty"`
	DueDate     *string `json:"due_date,omitempty"` // YYYY-MM-DD
	Priority    int     `json:"priority,omitempty"`
}

type UpdateTaskRequest struct {
	Title       *string `json:"title,omitempty"`
	Description *string `json:"description,omitempty"`
	Icon        *string `json:"icon,omitempty"`
	Color       *string `json:"color,omitempty"`
	DueDate     *string `json:"due_date,omitempty"`
	Priority    *int    `json:"priority,omitempty"`
}