package keeper

import (
	sdk "git.cw.tr/mukan-network/mukan-sdk/types"

	v10 "git.cw.tr/mukan-network/mukan-ibc/modules/core/04-channel/migrations/v10"
)

// Migrator is a struct for handling in-place store migrations.
type Migrator struct {
	keeper *Keeper
}

// NewMigrator returns a new Migrator.
func NewMigrator(keeper *Keeper) Migrator {
	return Migrator{keeper: keeper}
}

// Migrate7To8 migrates the channel store from module version 7 to 8 by:
// - Removing channel upgrade sequences
// - Removing any channel upgrade info (i.e. upgrades, counterparty upgrades, upgrade errors)
// - Removing channel params
// - Removing pruning sequences
// NOTE: This migration will fail if any channels are in the FLUSHING or FLUSHCOMPLETE state.
func (m *Migrator) Migrate7To8(ctx sdk.Context) error {
	return v10.MigrateStore(ctx, m.keeper.storeService, m.keeper.cdc, m.keeper)
}