# Transactional snapshots and conflict-checked undo
# 1. Capture snapshot before refactoring
exec semedit snapshot --label before-calc-edit --paths calc.go
stdout '"snapshot_id":'
stdout 'calc.go'

# 2. Modify function body with semantic edit
exec semedit replace-body --file calc.go --symbol Compute --body 'return x * 10'
cmp calc.go want/modified_calc.go

# 3. Restore pre-edit state using latest snapshot
exec semedit undo --id latest
stdout '"restored_files":'
stdout 'calc.go'
cmp calc.go want/calc.go

-- go.mod --
module example.com/test
go 1.23

-- calc.go --
package main

func Compute(x int) int {
	return x + 1
}

-- want/calc.go --
package main

func Compute(x int) int {
	return x + 1
}

-- want/modified_calc.go --
package main

func Compute(x int) int {
	return x * 10
}