package main

import (
	"fmt"
	"time"
)

func Watch(ch <-chan *CompileReport, doneCh chan<- struct{}) {
	defer close(doneCh)

	times := map[*CompileConfig]time.Duration{}

	states := map[*CompileConfig]CompileState{}
	for _, cfg := range CompileConfigs {
		states[cfg] = StateWaiting
	}

	cleared := false

	for report := range ch {
		states[report.Config] = report.State
		times[report.Config] = report.Duration.Truncate(time.Second / 100)
		if !*Silent {
			PrintStates(states, times, cleared)
		}
		cleared = true
	}

	doneCh <- struct{}{}
}

func PrintStates(states map[*CompileConfig]CompileState, times map[*CompileConfig]time.Duration, clear bool) {
	if clear {
		for i := 0; i < len(CompileConfigs); i++ {
			goUp()
			clearEOL()
		}
	}

	for _, cfg := range CompileConfigs {
		state, ok := states[cfg]
		if !ok {
			fmt.Println()
			continue
		}

		if state == StateDone {
			fmt.Printf(fmt.Sprintf("%%-%ds %%s (%%s)\n", MaxConfigStringLength), cfg.String(), state, times[cfg])
		} else {
			fmt.Printf(fmt.Sprintf("%%-%ds %%s\n", MaxConfigStringLength), cfg.String(), state)
		}
	}
}