package com.gabrielsantanaa.todoapi.domain.entities

import java.time.LocalDateTime

data class TaskEntity(
    var id: Long,
    var title: String,
    var description: String,
    var createAt: LocalDateTime,
    var status: TaskStatusEntity
) {

    private val subtasks = mutableListOf<TaskEntity>()

    fun addSubtask(task: TaskEntity) {
        if (subtasks.find { it.id == task.id } != null) throw IllegalArgumentException()
        subtasks.add(task)
    }

    val titleIsValid: Boolean
        get() {
            return title.length in 5..29
        }

    val descriptionIsValid: Boolean
        get() {
            return description.length in 10..200
        }

    val statusIsValid: Boolean
        get() {
            return (status as? TaskStatusEntity.Done)?.let {
                !it.doneAt.isBefore(createAt)
            } ?: run { false }
        }

}

package com.gabrielsantanaa.todoapi.domain.entities

import org.assertj.core.api.Assertions.assertThat
import org.junit.jupiter.api.Test
import java.time.LocalDateTime

class TaskEntityTest {

    @Test
    fun `title length less than 5 should be invalid`() {
        val taskEntity = TaskEntity(0, "papa", "", LocalDateTime.now(), TaskStatusEntity.ToDo)

        val result = taskEntity.titleIsValid

        assertThat(result).isFalse
    }

    @Test
    fun `title length bigger than 30 should be invalid`() {
        val taskEntity = TaskEntity(0, "aasasasasaasasasasasasasasasasasasasasaasasasasasasasasa", "", LocalDateTime.now(), TaskStatusEntity.ToDo)

        val result = taskEntity.titleIsValid

        assertThat(result).isFalse
    }

    @Test
    fun `title length between 5 and 30 should be valid`() {
        val taskEntity = TaskEntity(0, "aasasasasaasasasasasasa", "", LocalDateTime.now(), TaskStatusEntity.ToDo)

        val result = taskEntity.titleIsValid

        assertThat(result).isTrue
    }

    @Test
    fun `description length less than 10 should be invalid`() {
        val taskEntity = TaskEntity(0, "", "aa", LocalDateTime.now(), TaskStatusEntity.ToDo)

        val result = taskEntity.descriptionIsValid

        assertThat(result).isFalse
    }

    @Test
    fun `description length bigger than 200 should be invalid`() {
        val taskEntity = TaskEntity(0, "", "", LocalDateTime.now(), TaskStatusEntity.ToDo)
        var description = ""
        for (x in 1..201) {
            description += x.toShort()
        }
        taskEntity.description = description

        val result = taskEntity.descriptionIsValid

        assertThat(result).isFalse
    }

    @Test
    fun `description length between 10 and 200 should be valid`() {
        val taskEntity = TaskEntity(0, "", "aasasasasaasasasasasasa", LocalDateTime.now(), TaskStatusEntity.ToDo)

        val result = taskEntity.descriptionIsValid

        assertThat(result).isTrue
    }
}