package main

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"time"
	"tipitypy/colorizer"
	"tipitypy/reader"

	"golang.org/x/term"
)

func finish(start time.Time) {
	past := time.Now().Sub(start)
	fmt.Printf("\r\n%s", colorizer.Colors.Reset())
	fmt.Printf("Correct: %d ; False: %d ; Skipped: %d\r\n", globalStat.Correct, globalStat.False, globalStat.Skipped)
	fmt.Println(past)
	fmt.Print("\r\n")
	fmt.Printf("CPM: %.2f ;; WPM: %.2f\r\n",
		float64(globalStat.Correct)/past.Minutes(),
		float64(globalStat.Words+1)/past.Minutes())
}

func main() {
	logFile, err := os.OpenFile("ttt.log", os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
	if err != nil {
		panic(err)
	}
	defer logFile.Close()
	log.SetOutput(logFile)
	source, err := reader.GetSourceLine()
	if err != nil {
		panic(err)
	}
	log.Print("Start of tipitypy")
	colorizer.PrintColorized(source)
	fmt.Printf("\n")
	//
	// Put the terminal in raw mode to read characters as they are typed
	oldState, err := term.MakeRaw(int(os.Stdin.Fd()))
	if err != nil {
		panic(err)
	}
	defer term.Restore(int(os.Stdin.Fd()), oldState) // Restore terminal state at the end
	//
	p := []rune(source)
	i := 0
	//
	startTime := time.Now()
	defer finish(startTime)
	reader := bufio.NewReader(os.Stdin)
	for {
		r, _, err := reader.ReadRune()
		if err != nil {
			panic(err)
		}
		log.Printf("Read %c ; %d as rune", r, r)

		// CTRL + C
		if r == 3 {
			break
		}
		// CTRL + D
		if r == 4 {
			// TODO: Delete
		}
		// CTRL + S
		if r == 19 {
			globalStat.Skipped++
			fmt.Printf("%s", colorizer.Accept(p[i]))
			i++
			continue
		}
		// Check
		if p[i] == r {
			if r == ' ' {
				globalStat.Words++
			}
			globalStat.Correct++
			fmt.Printf("%s", colorizer.Accept(r))
			i++
			if i == len(p) {
				break
			}
		} else {
			globalStat.False++
		}
	}
}