package segments

import (
	"testing"

	"github.com/jandedobbeleer/oh-my-posh/src/properties"
	"github.com/jandedobbeleer/oh-my-posh/src/runtime"
	"github.com/jandedobbeleer/oh-my-posh/src/runtime/mock"

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

func TestScmStatusChanged(t *testing.T) {
	cases := []struct {
		Case     string
		Expected bool
		Status   ScmStatus
	}{
		{
			Case:     "No changes",
			Expected: false,
			Status:   ScmStatus{},
		},
		{
			Case:     "Added",
			Expected: true,
			Status: ScmStatus{
				Added: 1,
			},
		},
		{
			Case:     "Moved",
			Expected: true,
			Status: ScmStatus{
				Moved: 1,
			},
		},
		{
			Case:     "Modified",
			Expected: true,
			Status: ScmStatus{
				Modified: 1,
			},
		},
		{
			Case:     "Deleted",
			Expected: true,
			Status: ScmStatus{
				Deleted: 1,
			},
		},
		{
			Case:     "Unmerged",
			Expected: true,
			Status: ScmStatus{
				Unmerged: 1,
			},
		},
	}

	for _, tc := range cases {
		assert.Equal(t, tc.Expected, tc.Status.Changed(), tc.Case)
	}
}

func TestScmStatusString(t *testing.T) {
	cases := []struct {
		Case     string
		Expected string
		Status   ScmStatus
	}{
		{
			Case:     "Unmerged",
			Expected: "x1",
			Status: ScmStatus{
				Unmerged: 1,
			},
		},
		{
			Case:     "Unmerged and Modified",
			Expected: "~3 x1",
			Status: ScmStatus{
				Unmerged: 1,
				Modified: 3,
			},
		},
		{
			Case:   "Empty",
			Status: ScmStatus{},
		},
		{
			Case:     "Format override",
			Expected: "Added: 1",
			Status: ScmStatus{
				Added: 1,
				Formats: map[string]string{
					"Added": "Added: %d",
				},
			},
		},
	}

	for _, tc := range cases {
		assert.Equal(t, tc.Expected, tc.Status.String(), tc.Case)
	}
}

func TestTruncateBranch(t *testing.T) {
	cases := []struct {
		Case       string
		Expected   string
		Branch     string
		FullBranch bool
		MaxLength  any
	}{
		{Case: "No limit", Expected: "are-belong-to-us", Branch: "/all-your-base/are-belong-to-us", FullBranch: false},
		{Case: "No limit - larger", Expected: "are-belong", Branch: "/all-your-base/are-belong-to-us", FullBranch: false, MaxLength: 10.0},
		{Case: "No limit - smaller", Expected: "all-your-base", Branch: "/all-your-base", FullBranch: false, MaxLength: 13.0},
		{Case: "Invalid setting", Expected: "all-your-base", Branch: "/all-your-base", FullBranch: false, MaxLength: "burp"},
		{Case: "Lower than limit", Expected: "all-your-base", Branch: "/all-your-base", FullBranch: false, MaxLength: 20.0},

		{Case: "No limit - full branch", Expected: "/all-your-base/are-belong-to-us", Branch: "/all-your-base/are-belong-to-us", FullBranch: true},
		{Case: "No limit - larger - full branch", Expected: "/all-your-base", Branch: "/all-your-base/are-belong-to-us", FullBranch: true, MaxLength: 14.0},
		{Case: "No limit - smaller - full branch ", Expected: "/all-your-base", Branch: "/all-your-base", FullBranch: true, MaxLength: 14.0},
		{Case: "Invalid setting - full branch", Expected: "/all-your-base", Branch: "/all-your-base", FullBranch: true, MaxLength: "burp"},
		{Case: "Lower than limit - full branch", Expected: "/all-your-base", Branch: "/all-your-base", FullBranch: true, MaxLength: 20.0},
	}

	for _, tc := range cases {
		props := properties.Map{
			BranchMaxLength: tc.MaxLength,
			FullBranchPath:  tc.FullBranch,
		}
		p := &Plastic{
			scm: scm{
				props: props,
			},
		}
		assert.Equal(t, tc.Expected, p.truncateBranch(tc.Branch), tc.Case)
	}
}

func TestTruncateBranchWithSymbol(t *testing.T) {
	cases := []struct {
		Case           string
		Expected       string
		Branch         string
		FullBranch     bool
		MaxLength      any
		TruncateSymbol any
	}{
		{Case: "No limit", Expected: "are-belong-to-us", Branch: "/all-your-base/are-belong-to-us", FullBranch: false, TruncateSymbol: "..."},
		{Case: "No limit - larger", Expected: "are-belong...", Branch: "/all-your-base/are-belong-to-us", FullBranch: false, MaxLength: 10.0, TruncateSymbol: "..."},
		{Case: "No limit - smaller", Expected: "all-your-base", Branch: "/all-your-base", FullBranch: false, MaxLength: 13.0, TruncateSymbol: "..."},
		{Case: "Invalid setting", Expected: "all-your-base", Branch: "/all-your-base", FullBranch: false, MaxLength: "burp", TruncateSymbol: "..."},
		{Case: "Lower than limit", Expected: "all-your-base", Branch: "/all-your-base", FullBranch: false, MaxLength: 20.0, TruncateSymbol: "..."},

		{Case: "No limit - full branch", Expected: "/all-your-base/are-belong-to-us", Branch: "/all-your-base/are-belong-to-us", FullBranch: true, TruncateSymbol: "..."},
		{Case: "No limit - larger - full branch", Expected: "/all-your-base...", Branch: "/all-your-base/are-belong-to-us", FullBranch: true, MaxLength: 14.0, TruncateSymbol: "..."},
		{Case: "No limit - smaller - full branch ", Expected: "/all-your-base", Branch: "/all-your-base", FullBranch: true, MaxLength: 14.0, TruncateSymbol: "..."},
		{Case: "Invalid setting - full branch", Expected: "/all-your-base", Branch: "/all-your-base", FullBranch: true, MaxLength: "burp", TruncateSymbol: "..."},
		{Case: "Lower than limit - full branch", Expected: "/all-your-base", Branch: "/all-your-base", FullBranch: true, MaxLength: 20.0, TruncateSymbol: "..."},
	}

	for _, tc := range cases {
		props := properties.Map{
			BranchMaxLength: tc.MaxLength,
			TruncateSymbol:  tc.TruncateSymbol,
			FullBranchPath:  tc.FullBranch,
		}
		p := &Plastic{
			scm: scm{
				props: props,
			},
		}
		assert.Equal(t, tc.Expected, p.truncateBranch(tc.Branch), tc.Case)
	}
}

func TestHasCommand(t *testing.T) {
	cases := []struct {
		Case            string
		ExpectedCommand string
		Command         string
		GOOS            string
		IsWslSharedPath bool
		NativeFallback  bool
	}{
		{Case: "On Windows", ExpectedCommand: "git.exe", GOOS: runtime.WINDOWS},
		{Case: "Cache", ExpectedCommand: "git.exe", Command: "git.exe"},
		{Case: "Non Windows", ExpectedCommand: "git"},
		{Case: "Iside WSL2, non shared", ExpectedCommand: "git"},
		{Case: "Iside WSL2, shared", ExpectedCommand: "git.exe", IsWslSharedPath: true},
		{Case: "Iside WSL2, shared fallback", ExpectedCommand: "git", IsWslSharedPath: true, NativeFallback: true},
	}

	for _, tc := range cases {
		env := new(mock.Environment)
		env.On("GOOS").Return(tc.GOOS)
		env.On("InWSLSharedDrive").Return(tc.IsWslSharedPath)
		env.On("HasCommand", "git").Return(true)
		env.On("HasCommand", "git.exe").Return(!tc.NativeFallback)
		s := &scm{
			env: env,
			props: properties.Map{
				NativeFallback: tc.NativeFallback,
			},
			command: tc.Command,
		}

		_ = s.hasCommand(GITCOMMAND)
		assert.Equal(t, tc.ExpectedCommand, s.command, tc.Case)
	}
}