package main

import (
	"slices"
	"time"
)

type Book struct {
	Name   string
	Length time.Duration
}

var stormlight []Book = []Book{
	{
		Name:   "The Way of Kings Part 1",
		Length: 26966 * time.Second,
	},
	{
		Name:   "The Way of Kings Part 2",
		Length: 25887 * time.Second,
	},
	{
		Name:   "The Way of Kings Part 3",
		Length: 27645 * time.Second,
	},
	{
		Name:   "The Way of Kings Part 4",
		Length: 26077 * time.Second,
	},
	{
		Name:   "The Way of Kings Part 5",
		Length: 27181 * time.Second,
	},
	{
		Name:   "Words of Radiance Part 1",
		Length: 27556 * time.Second,
	},
	{
		Name:   "Words of Radiance Part 2",
		Length: 27416 * time.Second,
	},
	{
		Name:   "Words of Radiance Part 3",
		Length: 26568 * time.Second,
	},
	{
		Name:   "Words of Radiance Part 4",
		Length: 26130 * time.Second,
	},
	{
		Name:   "Words of Radiance Part 5",
		Length: 27726 * time.Second,
	},
	{
		Name:   "Oathbringer Part 1",
		Length: 24407 * time.Second,
	},
	{
		Name:   "Oathbringer Part 2",
		Length: 24467 * time.Second,
	},
	{
		Name:   "Oathbringer Part 3",
		Length: 24482 * time.Second,
	},
	{
		Name:   "Oathbringer Part 4",
		Length: 22930 * time.Second,
	},
	{
		Name:   "Oathbringer Part 5",
		Length: 24122 * time.Second,
	},
	{
		Name:   "Oathbringer Part 6",
		Length: 25034 * time.Second,
	},
	{
		Name:   "Rhythm of War Part 1",
		Length: 25655 * time.Second,
	},
	{
		Name:   "Rhythm of War Part 2",
		Length: 24470 * time.Second,
	},
	{
		Name:   "Rhythm of War Part 3",
		Length: 23996 * time.Second,
	},
	{
		Name:   "Rhythm of War Part 4",
		Length: 27610 * time.Second,
	},
	{
		Name:   "Rhythm of War Part 5",
		Length: 28758 * time.Second,
	},
	{
		Name:   "Rhythm of War Part 6",
		Length: 29142 * time.Second,
	},
}

func getBookWithTimestamp(timeRemaining time.Duration) (string, time.Duration) {
	timeRemaining = time.Duration(timeRemaining.Hours()/24) * 45 * time.Minute
	slices.Reverse(stormlight)

	for _, book := range stormlight {
		if timeRemaining < book.Length {
			return book.Name, book.Length - timeRemaining
		}

		timeRemaining = timeRemaining - book.Length
	}

	if timeRemaining > 0 {
		return "The Way of Kings Part 1", 0
	}

	return "YOU SHOULD BE DONE", 0
}