package web

import (
	"testing"

	"gitea.dooplex.hu/admin/felhom-controller/internal/stacks"
)

// TASK-D0 §8 truth tables. These are the semantic contract of the v2 re-skin:
// every class suffix the templates key on comes from these three functions.

func TestStateColorTruthTable(t *testing.T) {
	s := &Server{}
	fm := s.templateFuncMap()
	stateColor := fm["stateColor"].(func(stacks.ContainerState) string)

	cases := []struct {
		state stacks.ContainerState
		want  string
	}{
		{stacks.StateRunning, "run"},
		{stacks.StateStarting, "progress"},
		{stacks.StateDeploying, "progress"},
		{stacks.StateUnhealthy, "warn"},
		{stacks.StateRestarting, "warn"}, // a restart loop is a problem, not progress
		{stacks.StateStopped, "neutral"}, // deliberately NOT red — customer-stopped is not an emergency
		{stacks.StateExited, "neutral"},
		{stacks.StatePaused, "neutral"},
		{stacks.StateNotDeployed, "off"},
		{stacks.ContainerState("bogus"), "off"},
	}
	for _, c := range cases {
		if got := stateColor(c.state); got != c.want {
			t.Errorf("stateColor(%q) = %q, want %q", c.state, got, c.want)
		}
	}
}

func TestUsageColorTruthTable(t *testing.T) {
	s := &Server{}
	fm := s.templateFuncMap()
	usageColor := fm["usageColor"].(func(float64) string)

	cases := []struct {
		percent float64
		want    string
	}{
		{0, "nominal"},
		{69.9, "nominal"},
		{70, "warn"},
		{84.9, "warn"},
		{85, "crit"},
		{100, "crit"},
	}
	for _, c := range cases {
		if got := usageColor(c.percent); got != c.want {
			t.Errorf("usageColor(%v) = %q, want %q", c.percent, got, c.want)
		}
	}
}

func TestTempColorTruthTable(t *testing.T) {
	s := &Server{}
	fm := s.templateFuncMap()
	tempColor := fm["tempColor"].(func(float64) string)

	// thresholds unchanged from v1: >75 crit, >=60 warn, else nominal
	cases := []struct {
		celsius float64
		want    string
	}{
		{40, "nominal"},
		{59.9, "nominal"},
		{60, "warn"},
		{75, "warn"},
		{75.1, "crit"},
		{90, "crit"},
	}
	for _, c := range cases {
		if got := tempColor(c.celsius); got != c.want {
			t.Errorf("tempColor(%v) = %q, want %q", c.celsius, got, c.want)
		}
	}
}

// TestStateLabelUnchanged guards the Hungarian copy against accidental edits
// during the re-skin — labels must stay byte-identical to pre-D0.
func TestStateLabelUnchanged(t *testing.T) {
	s := &Server{}
	fm := s.templateFuncMap()
	stateLabel := fm["stateLabel"].(func(stacks.ContainerState) string)

	cases := []struct {
		state stacks.ContainerState
		want  string
	}{
		{stacks.StateRunning, "Fut"},
		{stacks.StateStarting, "Indulás..."},
		{stacks.StateDeploying, "Telepítés..."},
		{stacks.StateUnhealthy, "Nem egészséges"},
		{stacks.StateStopped, "Leállítva"},
		{stacks.StateExited, "Leállítva"},
		{stacks.StateRestarting, "Újraindítás..."},
		{stacks.StateNotDeployed, "Nincs telepítve"},
		{stacks.StatePaused, "Szüneteltetve"},
		{stacks.ContainerState("bogus"), "Ismeretlen"},
	}
	for _, c := range cases {
		if got := stateLabel(c.state); got != c.want {
			t.Errorf("stateLabel(%q) = %q, want %q", c.state, got, c.want)
		}
	}
}