package mlp

import "git.fromouter.space/mcg/draft"

// BlockPacks returns a pack provider for a block draft
func BlockPacks(block BlockID) (draft.PackProvider, error) {
	var setids []SetID
	switch block {
	case BlockPremiere:
		setids = []SetID{SetPremiere, SetCanterlotNights, SetCrystalGames, SetAbsoluteDiscord}
	case BlockOdyssey:
		setids = []SetID{SetEquestrialOdysseys, SetEquestrialOdysseys, SetHighMagic, SetMarksInTime}
	case BlockDefenders:
		setids = []SetID{SetFriendsForever, SetDefendersOfEquestria, SetSeaquestriaBeyond, SetFriendsForever}
	}

	sets := make([]*Set, len(setids))
	for i, setid := range setids {
		set, err := LoadSetMemory(setid)
		if err != nil {
			return nil, err
		}
		sets[i] = set
	}

	return func() []draft.Pack {
		packs := make([]draft.Pack, len(sets))
		for i, set := range sets {
			packs[i] = draft.MakePack(set)
		}
		return packs
	}, nil
}