package wikilink_test

import (
	"testing"

	"code.ndumas.com/ndumas/wikilink-parser"
)

func Test_Extract_Link(t *testing.T) {
	t.Parallel()

	tcs := []struct {
		name     string
		in       string
		expected string
	}{
		{name: "wikilink", in: "[[wikilink]]", expected: "wikilink"},
		{name: "wikilink|display name", in: "[[wikilink|display name]]", expected: "wikilink"},
		{name: "wikilink|display name|second pipe", in: "[[wikilink|display name|second pipe]]", expected: "wikilink"},
		{name: "wikilink with numeric alias|420|second pipe", in: "[[wikilink|420|second pipe]]", expected: "wikilink with numeric aliases"},
		{name: "wikilink with spaces in filename", in: "[[wikilink spaces]]", expected: "wikilink"},
		{name: "#heading", in: "[[#heading]]", expected: ""},
		{name: "wikilink#heading", in: "[[wikilink#heading]]", expected: "wikilink"},
		{name: "wikilink#heading|display name", in: "[[wikilink#heading|display name]]", expected: "wikilink"},
		{name: "wikilink#heading|display name", in: "[[wikilink#heading|display name]]", expected: "wikilink"},
		{name: "wikilink with numeric aliases#heading|420|display name", in: "[[wikilink#heading|420|second pipe]]", expected: "wikilink"},
		{name: "^blockRef", in: "[[^blockRef]]", expected: ""},
		{name: "wikilink^blockRef", in: "[[wikilink^blockRef]]", expected: "wikilink"},
		{name: "wikilink^blockRef|display name", in: "[[wikilink#^blockRef|display name]]", expected: "wikilink"},
		{name: "wikilink^blockRef|display name|second pipe", in: "[[wikilink#^blockRef|display name|second pipe]]", expected: "wikilink"},
		{name: "wikilink with numeric aliases^blockRef|420|second pipe", in: "[[wikilink#^blockRef|420|second pipe]]", expected: "wikilink"},
	}

	for _, tc := range tcs {
		tc := tc
		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()
			out := wikilink.Extract(tc.in)
			if out.Link != tc.expected {
				t.Logf("got %#v\n", out)
				t.Fail()
			}
		})
	}
}