package commandkit

import (
	"runtime/debug"
	"testing"
)

func TestCommandKitBuildIdentityProjectsEffectiveModuleVersion(t *testing.T) {
	tests := []struct {
		name string
		info *debug.BuildInfo
		want string
	}{
		{
			name: "main module tag",
			info: &debug.BuildInfo{Main: debug.Module{Path: commandKitModulePath, Version: "v1.2.3"}},
			want: "v1.2.3",
		},
		{
			name: "dependency tag",
			info: &debug.BuildInfo{Main: debug.Module{Path: "example.com/application", Version: "v4.0.0"}, Deps: []*debug.Module{{Path: commandKitModulePath, Version: "v1.2.3"}}},
			want: "v1.2.3",
		},
		{
			name: "versioned replacement",
			info: &debug.BuildInfo{Main: debug.Module{Path: "example.com/application"}, Deps: []*debug.Module{{Path: commandKitModulePath, Version: "v1.2.3", Replace: &debug.Module{Path: "example.com/fork", Version: "v2.0.0"}}}},
			want: "v2.0.0",
		},
		{
			name: "local replacement",
			info: &debug.BuildInfo{Main: debug.Module{Path: commandKitModulePath, Version: "v1.2.3", Replace: &debug.Module{Path: "../CommandKit"}}},
			want: "dev",
		},
		{
			name: "development module",
			info: &debug.BuildInfo{Main: debug.Module{Path: commandKitModulePath, Version: "(devel)"}},
			want: "dev",
		},
		{
			name: "missing module",
			info: &debug.BuildInfo{Main: debug.Module{Path: "example.com/application"}},
			want: "dev",
		},
		{
			name: "missing build info",
			info: nil,
			want: "dev",
		},
	}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			identity := commandKitBuildIdentity(test.info)
			if identity.Name != "CommandKit" || identity.Version != test.want || identity.Revision != "" {
				t.Fatalf("identity = %#v, want CommandKit %q with no revision", identity, test.want)
			}
		})
	}
}