package main

import (
	"os"
	"testing"
)

func TestParseLoad(t *testing.T) {
	err := os.WriteFile(
		"_tmp1.txt",
		[]byte("pilot Test Pilot\nship \"Little Fish\"\n\tname \"Hello World\"\n\tkind \"Space Fish\""),
		0660,
	)
	if err != nil {
		t.Errorf("Failed creating temp file")
	}
	defer func() {
		err = os.Remove("_tmp1.txt")
		if err != nil {
			t.Errorf("Failed cleaning up temp file")
		}
	}()

	p := Parser{}
	root, err := p.Load("_tmp1.txt")
	if err != nil {
		t.Fail()
		t.Logf("Unexpected error, %v", err)
		p.Debug = true
		p.Load("_tmp1.txt")
		p.Debug = false
	}
	if root.Len() != 2 {
		t.Fail()
		t.Logf("Incorrect child count for Root node, expected 2")
		t.Logf("%#v", root)
		for _, k := range root.Children {
			t.Logf("%#v", k)
		}
	}
	k, err := root.Child(1)
	if err != nil {
		t.Errorf("Unexpected error, %v", err)
	}
	if k.Line != "ship \"Little Fish\"" || k.Depth() != 0 {
		t.Errorf("Expected 'ship \"Little Fish\"' depth of 0, got '%s' (depth=%d)", k.Line, k.Depth())
	}
	if k.Len() != 2 {
		t.Fail()
		t.Logf("Incorrect child count for Root.1 node, expected 2")
		t.Logf("%#v", k)
		for _, k0 := range k.Children {
			t.Logf("%#v", k0)
		}
	}
	k1, err := k.Child(0)
	if err != nil {
		t.Errorf("Unexpected error, %v", err)
	}
	if k1.Line != "name \"Hello World\"" || k1.Depth() != 1 {
		t.Errorf("Expected 'name \"Hello World\"' depth 1, got '%s' (depth=%d)", k1.Line, k1.Depth())
	}
}

func TestParseSave(t *testing.T) {
	n := Node{}
	n1 := n.NewChild()
	n1.Line = "Hello World"
	n1 = n.NewChild()
	n1.Line = "Tacocat"
	n2 := n1.NewChild()
	n2.Line = "Meow?"
	p := Parser{}
	err := p.Save("_tmp2.txt", &n)
	if err != nil {
		t.Errorf("Unexpected error, %v", err)
	}
	defer func() {
		os.Remove("_tmp2.txt")
	}()
}