/*
Copyright © 2024 filifa

This program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cmd

import (
	"errors"
	"strings"

	"scm.dairydemon.net/filifa/mlblive/cmd/internal/statsapi"
)

var teamIDs = map[string]statsapi.TeamID{
	"laa": statsapi.LAA,
	"az":  statsapi.AZ,
	"bal": statsapi.BAL,
	"bos": statsapi.BOS,
	"chc": statsapi.CHC,
	"cin": statsapi.CIN,
	"cle": statsapi.CLE,
	"col": statsapi.COL,
	"det": statsapi.DET,
	"hou": statsapi.HOU,
	"kc":  statsapi.KC,
	"lad": statsapi.LAD,
	"wsh": statsapi.WSH,
	"nym": statsapi.NYM,
	"oak": statsapi.OAK,
	"pit": statsapi.PIT,
	"sd":  statsapi.SD,
	"sea": statsapi.SEA,
	"sf":  statsapi.SF,
	"stl": statsapi.STL,
	"tb":  statsapi.TB,
	"tex": statsapi.TEX,
	"tor": statsapi.TOR,
	"min": statsapi.MIN,
	"phi": statsapi.PHI,
	"atl": statsapi.ATL,
	"cws": statsapi.CWS,
	"mia": statsapi.MIA,
	"nyy": statsapi.NYY,
	"mil": statsapi.MIL,
}

func allowedFlags[V any](m map[string]V) []string {
	keys := make([]string, len(m))

	i := 0
	for k := range m {
		keys[i] = k
		i++
	}

	return keys
}

type teamFlag string

func (t *teamFlag) String() string {
	return string(*t)
}

func (t *teamFlag) Set(v string) error {
	var err error
	v = strings.ToLower(v)

	if v == "" {
		*t = teamFlag(v)
		return nil
	}

	_, ok := teamIDs[v]
	if !ok {
		allowed := allowedFlags(teamIDs)
		allowedList := strings.Join(allowed, ", ")
		err = errors.New("team must be one of " + allowedList)
	} else {
		*t = teamFlag(v)
	}
	return err
}

func (t *teamFlag) Type() string {
	return "teamFlag"
}