package runner

import (
	"strings"
	"testing"

	"codeberg.org/SquidSE/ClusterCanvas/service/internal/settings"
)

func TestRunScopedVariableSequence(t *testing.T) {
	vars := map[string]string{}

	// Action 1 captures trimmed stdout into UpdateCount.
	captured := strings.TrimSpace("3\n")
	vars["UpdateCount"] = captured
	if vars["UpdateCount"] != "3" {
		t.Fatalf("captured = %q", vars["UpdateCount"])
	}

	// Action 2 condition passes and body expands.
	ok, detail, err := EvaluateCondition("if $UpdateCount >= 1", vars)
	if err != nil || !ok {
		t.Fatalf("condition should pass: ok=%v err=%v", ok, err)
	}
	if detail != "$UpdateCount=3 >= 1" {
		t.Fatalf("detail = %q", detail)
	}
	body := ExpandDollarVars("echo upgrades=$UpdateCount", vars)
	if body != "echo upgrades=3" {
		t.Fatalf("body = %q", body)
	}

	// Action 3 condition fails → skipped.
	ok, detail, err = EvaluateCondition("if $UpdateCount >= 10", vars)
	if err != nil || ok {
		t.Fatalf("condition should fail: ok=%v err=%v", ok, err)
	}
	wantFail := "$UpdateCount was 3, which does not meet run condition (>= 10)"
	if detail != wantFail {
		t.Fatalf("detail = %q, want %q", detail, wantFail)
	}

	// A fresh run starts with an empty map (no leak).
	nextRun := map[string]string{}
	ok, detail, err = EvaluateCondition("if $UpdateCount >= 1", nextRun)
	if err != nil || ok {
		t.Fatalf("unset in new run should be false: ok=%v err=%v", ok, err)
	}
	wantUnset := "$UpdateCount was unset, which does not meet run condition (>= 1)"
	if detail != wantUnset {
		t.Fatalf("detail = %q, want %q", detail, wantUnset)
	}
}

func TestSkipResultShape(t *testing.T) {
	item := settings.NodeActionItem{
		ID:    "i1",
		Name:  "Upgrade",
		RunIf: "if $UpdateCount >= 1",
	}
	vars := map[string]string{"UpdateCount": "0"}
	shouldRun, detail, condErr := EvaluateCondition(item.RunIf, vars)
	if condErr != nil {
		t.Fatalf("eval: %v", condErr)
	}
	if shouldRun {
		t.Fatal("expected skip")
	}
	skipReason := item.Name + " skipped: run condition was not met"
	if detail != "" {
		skipReason = item.Name + " skipped: " + detail
	}
	result := settings.ActionItemRunResult{
		ItemID:     item.ID,
		ActionName: item.Name,
		Skipped:    true,
		SkipReason: skipReason,
		ExitCode:   0,
	}
	want := "Upgrade skipped: $UpdateCount was 0, which does not meet run condition (>= 1)"
	if !result.Skipped || result.SkipReason != want {
		t.Fatalf("result = %#v, want SkipReason %q", result, want)
	}
}