package service

import (
	"testing"
	"view/model"
)

func TestHasUpperTODO(t *testing.T) {
	cases := []struct {
		text string
		want bool
	}{
		{"// TODO: fix later", true},
		{"# TODO", true},
		{"    TODO()", true},
		{"create table todo", false},
		{"type TodoService struct {}", false},
		{"const todos = []", false},
		{"TODOS := 1", false},
		{"myTODO", false},
		{"TODO_ITEM", false},
		{"// todo: later", false},
		{"// Todo: later", false},
	}
	for _, c := range cases {
		if got := hasUpperTODO(c.text); got != c.want {
			t.Errorf("hasUpperTODO(%q) = %v, want %v", c.text, got, c.want)
		}
	}
}

func TestPathExcludedAndFilterStructure(t *testing.T) {
	rules := []model.ExclusionRule{{Pattern: "vendor"}, {Pattern: "src/todo"}, {Pattern: "*.pb.go"}}
	if !pathExcluded("vendor/lib.go", rules) {
		t.Fatal("vendor dir should be excluded")
	}
	if !pathExcluded("src/todo/list.go", rules) {
		t.Fatal("src/todo dir should be excluded")
	}
	if !pathExcluded("api/user.pb.go", rules) {
		t.Fatal("*.pb.go should be excluded")
	}
	if pathExcluded("src/app/main.go", rules) {
		t.Fatal("normal source should stay")
	}

	s := model.StructureStats{
		Files: []model.FileEntry{
			{Path: "src/app/main.go"},
			{Path: "vendor/lib.go"},
			{Path: "src/todo/list.go"},
		},
		LargeFiles: []model.FileEntry{{Path: "vendor/huge.bin"}},
		Folders:    []model.FolderStat{{Name: "vendor"}, {Name: "src"}},
	}
	got := filterStructureForInsights(s, rules)
	if len(got.Files) != 1 || got.Files[0].Path != "src/app/main.go" {
		t.Fatalf("files=%#v", got.Files)
	}
	if len(got.LargeFiles) != 0 {
		t.Fatalf("large=%#v", got.LargeFiles)
	}
	if len(got.Folders) != 1 || got.Folders[0].Name != "src" {
		t.Fatalf("folders=%#v", got.Folders)
	}
}