package plugin // import nocternity.net/gomonop/pkg/plugin

import (
	"container/list"
	"testing"

	"github.com/stretchr/testify/assert"
	"nocternity.net/gomonop/pkg/perfdata"
)

func TestNew(t *testing.T) {
	p := New("test")

	assert.Equal(t, p.name, "test")
	assert.Equal(t, p.status, StatusUnknown)
	assert.Equal(t, p.message, "no status set")
	assert.Nil(t, p.extraText)
	assert.NotNil(t, p.perfData)
}

func TestSetState(t *testing.T) {
	p := Plugin{}

	p.SetState(StatusWarning, "test")

	assert.Equal(t, p.status, StatusWarning)
	assert.Equal(t, p.message, "test")
}

func TestAddLineFirst(t *testing.T) {
	p := Plugin{}

	p.AddLine("test")

	assert.NotNil(t, p.extraText)
	assert.Equal(t, p.extraText.Len(), 1)
	assert.Equal(t, p.extraText.Front().Value, "test")
}

func TestAddLineNext(t *testing.T) {
	p := Plugin{}
	p.extraText = list.New()

	p.AddLine("test")

	assert.Equal(t, p.extraText.Len(), 1)
	assert.Equal(t, p.extraText.Front().Value, "test")
}

func TestAddLinef(t *testing.T) {
	p := Plugin{}

	p.AddLinef("test %d", 123)

	assert.Equal(t, p.extraText.Len(), 1)
	assert.Equal(t, p.extraText.Front().Value, "test 123")
}

func TestAddLines(t *testing.T) {
	p := Plugin{}

	p.AddLines([]string{"test", "test2"})

	assert.Equal(t, p.extraText.Len(), 2)
	assert.Equal(t, p.extraText.Front().Value, "test")
	assert.Equal(t, p.extraText.Front().Next().Value, "test2")
}

func TestAddPerfData(t *testing.T) {
	p := Plugin{}
	p.perfData = make(map[string]*perfdata.PerfData)

	p.AddPerfData(&perfdata.PerfData{Label: "test"})

	value, ok := p.perfData["test"]
	assert.True(t, ok)
	assert.Equal(t, value.Label, "test")
}

func TestAddPerfDataDuplicate(t *testing.T) {
	p := Plugin{}
	p.perfData = make(map[string]*perfdata.PerfData)
	p.perfData["test"] = &perfdata.PerfData{Label: "test"}

	assert.Panics(t, func() { p.AddPerfData(&perfdata.PerfData{Label: "test"}) })
}

func TestString(t *testing.T) {
	type Test struct {
		Plugin
		expected string
	}

	pdat := perfdata.PerfData{Label: "test"}
	tests := []Test{
		{
			Plugin{
				name:     "test",
				status:   StatusWarning,
				message:  "test",
				perfData: make(map[string]*perfdata.PerfData),
			},
			"test WARNING: test",
		},
		{
			func() Plugin {
				p := Plugin{
					name:      "test",
					status:    StatusWarning,
					message:   "test",
					perfData:  make(map[string]*perfdata.PerfData),
					extraText: list.New(),
				}
				p.extraText.PushBack("test 1")
				p.extraText.PushBack("test 2")
				return p
			}(),
			"test WARNING: test\ntest 1\ntest 2",
		},
		{
			func() Plugin {
				p := Plugin{
					name:     "test",
					status:   StatusWarning,
					message:  "test",
					perfData: make(map[string]*perfdata.PerfData),
				}
				p.perfData["test 1"] = &pdat
				p.perfData["test 2"] = &pdat
				return p
			}(),
			"test WARNING: test | " + pdat.String() + ", " +
				pdat.String(),
		},
		{
			func() Plugin {
				p := Plugin{
					name:      "test",
					status:    StatusWarning,
					message:   "test",
					perfData:  make(map[string]*perfdata.PerfData),
					extraText: list.New(),
				}
				p.perfData["test 1"] = &pdat
				p.perfData["test 2"] = &pdat
				p.extraText.PushBack("test 1")
				p.extraText.PushBack("test 2")
				return p
			}(),
			"test WARNING: test | " + pdat.String() + ", " +
				pdat.String() + "\ntest 1\ntest 2",
		},
	}

	for _, test := range tests {
		result := test.Plugin.String()
		assert.Equal(t, test.expected, result, "Expected '%s', got '%s'", test.expected, result)
	}
}

func TestExitCode(t *testing.T) {
	p := Plugin{}

	p.status = StatusOK
	assert.Equal(t, int(StatusOK), p.ExitCode())

	p.status = StatusWarning
	assert.Equal(t, int(StatusWarning), p.ExitCode())

	p.status = StatusCritical
	assert.Equal(t, int(StatusCritical), p.ExitCode())

	p.status = StatusUnknown
	assert.Equal(t, int(StatusUnknown), p.ExitCode())
}