/*
Copyright © 2022 NAME HERE <EMAIL ADDRESS>

*/
package cmd

import (
	"fmt"
	"strings"
	"time"

	"git.bullercodeworks.com/brian/gime/cli"
	"git.bullercodeworks.com/brian/gime/util"
	"git.bullercodeworks.com/brian/go-timertxt"
	"github.com/spf13/cobra"
)

// listCmd represents the list command
var listCmd = &cobra.Command{
	Use:     "list",
	Aliases: []string{"ls", "lsa", "lsd"},
	Short:   "List Timers",
	RunE:    opListTimers,
}

func init() {
	rootCmd.AddCommand(listCmd)

	// Here you will define your flags and configuration settings.

	// Cobra supports Persistent Flags which will work for this command
	// and all subcommands, e.g.:
	// listCmd.PersistentFlags().String("foo", "", "A help for foo")

	// Local Flags
	listCmd.Flags().BoolP("all", "a", false, "Include done.txt timers")
	listCmd.Flags().BoolP("done", "d", false, "Only done.txt timers")
}

func opListTimers(cmd *cobra.Command, args []string) error {
	var err error
	var includeArchive bool
	var onlyArchive bool
	//onlyArchive := cmd.CalledAs() == "lsd" || listCmd.Flags().Lookup
	if onlyArchive, err = cmd.Flags().GetBool("done"); err != nil {
		return err
	} else if includeArchive, err = cmd.Flags().GetBool("all"); err != nil {
		return err
	}
	if cmd.CalledAs() == "lsd" {
		onlyArchive = true
	} else if cmd.CalledAs() == "lsa" {
		includeArchive = true
	}

	p := cli.Program{}
	err = p.Initialize()
	if err != nil {
		return err
	}
	if !onlyArchive {
		if err := p.LoadTimerList(); err != nil {
			return err
		}
	}
	if includeArchive || onlyArchive {
		if err := p.LoadDoneList(); err != nil {
			return err
		}
	}
	start := time.Time{}
	end := time.Now()
	var contextFilters []string
	var projectFilters []string

	var allFilters []func(timertxt.Timer) bool

	if len(args) > 0 {
		contextFilters, args = util.GetContextsFromSlice(args)
		projectFilters, args = util.GetProjectsFromSlice(args)
	}
	if len(args) > 0 {
		if start, err = util.ParseFuzzyTime(args[0]); err != nil {
			y, m, d := time.Now().Date()
			start = time.Date(y, m, d, 0, 0, 0, 0, time.Now().Location())
		} else {
			args = args[1:]
		}
		if len(args) > 0 {
			if end, err = util.ParseFuzzyTime(args[0]); err != nil {
				y, m, d := time.Now().Date()
				end = time.Date(y, m, d, 23, 59, 59, 0, time.Now().Location())
			} else {
				args = args[1:]
			}
		}
	}

	list := timertxt.NewTimerList()
	if !onlyArchive {
		list = p.TimerList.GetTimersInRange(start, end)
		if includeArchive {
			*list = append(*list, (*p.DoneList.GetTimersInRange(start, end))...)
		}
	} else {
		list = p.DoneList.GetTimersInRange(start, end)
	}
	if len(contextFilters) > 0 {
		allFilters = append(allFilters, func(t timertxt.Timer) bool {
			for _, v := range contextFilters {
				v = strings.TrimPrefix(v, "@")
				if !t.HasContext(v) {
					return false
				}
			}
			return true
		})
	}
	if len(projectFilters) > 0 {
		allFilters = append(allFilters, func(t timertxt.Timer) bool {
			for _, v := range projectFilters {
				v = strings.TrimPrefix(v, "+")
				if !t.HasProject(v) {
					return false
				}
			}
			return true
		})
	}
	doFilters := func(t *timertxt.Timer) bool {
		for _, v := range allFilters {
			if !v(*t) {
				return false
			}
		}
		// If we made it all the way down here, it matches
		return true
	}
	list = list.Filter(doFilters)

	dayTotals := make(map[string]time.Duration)
	for _, v := range *list {
		dur := v.FinishDate.Sub(v.StartDate)
		if v.FinishDate.IsZero() {
			dur = time.Now().Sub(v.StartDate)
		}
		dayTotals[v.StartDate.Format("2006/01/02")] += dur
	}
	var oldDayStr, dayStr string
	for _, v := range *list {
		oldDayStr = dayStr
		dayStr = v.StartDate.Format("2006/01/02")
		if dayStr != oldDayStr {
			// TODO:
			wrkDur := dayTotals[dayStr].Round(util.GetRoundToDuration())
			fmtStr := dayStr + " ( %.2f )\n"
			fmt.Printf(fmtStr, util.DurationToDecimal(wrkDur))
		}

		fmt.Println("  " + util.TimerToFriendlyString(v))
	}
	return nil
}