package version

import (
	"fmt"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestNewComparer(t *testing.T) {
	tests := []struct {
		s       string
		wantErr bool
	}{
		// if soft requirement for 1.0. Use constraints compare
		{"(,1.0)", false},
		{"(,1.0]", false},
		{"[1.0,)", false},
		{"[1.0,]", false},
		{"(0.9,1.0)", false},
		{"(0.9,1.0]", false},
		{"[1.0,1.1)", false},
		{"[1.0,1.1]", false},
		{"[2.4.0,2.4.2],[2.4.4]", false},
		{"[2.4.0,2.4.2],[2.4.4],[2.5.5]", false},
		{"1.0", false},
		{"> 1.0", false},
		{"< 1.0", false},
		{"<= 1.0", false},
		{">= 1.0", false},
		{"== 1.0", false},

		{"[1.0,1.1,1.2]", true},
		{"[1.0,1.1,1.2]", true},
		{"!= !=", true},
		{"bar <", true},
	}

	for _, tt := range tests {
		t.Run(tt.s, func(t *testing.T) {
			_, err := NewComparer(tt.s)
			if tt.wantErr {
				assert.NotNil(t, err)
			} else {
				assert.NoError(t, err)
			}
		})
	}
}

func TestComparerCheck(t *testing.T) {
	tests := []struct {
		s       string
		version string
		want    bool
	}{
		{"[,1.0.0]", "0.9", true},
		{"1.0.0", "1", true},
		{"(1.0,2.0]", "1.5", true},
		{"(1.0,2.0]", "2.0", true},
		{"[,1.0.0]", "0.9", true},
		{"1.0.0", "1", true},
		{"(1.0,2.0]", "1.5", true},
		{"(1.0,2.0]", "2.0", true},
		{"==4.1-alpha", "4.1.0-alpha", true},
		{"!=4.1-alpha", "4.1.0", true},
		{"<0-z", "0.0.0-alpha", true},
		{"<= 2.1.0-a", "2.0.0", true},

		{"< 1.0 || = 2.0", "2.0", true},
		{"> 1.0 < 1.2 || >3.0, <4.0", "4.2", false},
		{"(,1.0.5.RELEASE],[2.0.0.RELEASE,2.0.16.RELEASE),[2.1.0.RELEASE,2.1.3.RELEASE)", "1.0.0", true},
		{"(,1.0.5.RELEASE],[2.0.0.RELEASE,2.0.16.RELEASE),[2.1.0.RELEASE,2.1.3.RELEASE)", "2.0.0", true},
		{"(,1.0.5.RELEASE],[2.0.0.RELEASE,2.0.16.RELEASE),[2.1.0.RELEASE,2.1.3.RELEASE)", "2.1.3", false},
	}

	for _, tt := range tests {
		t.Run(fmt.Sprintf("%s %s", tt.version, tt.s), func(t *testing.T) {
			r, err := NewComparer(tt.s)
			require.NoError(t, err)

			v, err := NewVersion(tt.version)
			require.NoError(t, err)

			assert.Equal(t, tt.want, r.Check(v))
		})
	}
}