package host

import (
	"github.com/carlosframework/platform/internal/moves"
	"testing"
)

func TestPlan14FloorReconstruction(t *testing.T) {
	a := moves.Floor{Min: 1, MinRelease: "v1.0.0"}
	b := moves.Floor{Min: 2, MinRelease: "v2.0.0"}
	c := moves.Floor{Min: 3, MinRelease: "v3.0.0"}
	for _, tc := range []struct {
		name            string
		history, remote *moves.Floor
		legacy          []*moves.Floor
		want            *moves.Floor
		bad             bool
	}{
		{"remote deleted", &b, nil, nil, &b, false},
		{"remote regressed", &b, &a, nil, &b, true},
		{"legacy stricter", &a, &a, []*moves.Floor{&b}, &b, true},
		{"legacy cannot grant", nil, &b, []*moves.Floor{&b}, nil, true},
		{"both legacy files missing", nil, &a, nil, nil, true},
		{"remote and legacy missing", nil, nil, nil, nil, true},
		{"corrupt legacy", &a, &c, []*moves.Floor{{Min: 2, MinRelease: "broken"}}, nil, true},
		{"root history survives legacy deletion", &b, &c, nil, &c, false},
		{"independent minima", &a, nil, []*moves.Floor{{Min: 3, MinRelease: "v1.0.0"}, &b}, &moves.Floor{Min: 3, MinRelease: "v2.0.0"}, true},
	} {
		t.Run(tc.name, func(t *testing.T) {
			got, err := reconstructRootFloor(tc.history, tc.remote, tc.legacy)
			if (err != nil) != tc.bad {
				t.Fatalf("error = %v", err)
			}
			if (got == nil) != (tc.want == nil) || (got != nil && *got != *tc.want) {
				t.Fatalf("floor=%+v, want %+v", got, tc.want)
			}
		})
	}
}