package rss

import (
	"testing"

	"github.com/mmcdole/gofeed"
)

func Test_RSSItem(t *testing.T) {
	cases := []struct {
		input  gofeed.Item
		filter string
		output Item
	}{
		{
			input: gofeed.Item{
				Title:   "a",
				Link:    "b",
				Content: `<img src="A" and=things/> <img src="asdf" and="some-toher-stuff"></img>`,
			},
			filter: `<[a-z]+.+?/([a-z]+)?>`,
			output: Item{
				Name:    "a",
				Link:    "b",
				Content: `<img src="A"/><br><img src="asdf"/>`,
			},
		},
		{
			input: gofeed.Item{
				Title:   "a",
				Link:    "b",
				Content: `a b c <img src="asdf" and="some-toher-stuff"></img> d e f`,
			},
			filter: `<[a-z]+.+?/([a-z]+)?>`,
			output: Item{
				Name:    "a",
				Link:    "b",
				Content: `<img src="asdf"/>`,
			},
		},
		{
			input: gofeed.Item{
				Title:   "a",
				Link:    "b",
				Content: "",
			},
			filter: "",
			output: Item{
				Name:    "a",
				Link:    "b",
				Content: "",
			},
		},
		{
			input: gofeed.Item{
				Title:   "a",
				Link:    "b",
				Content: `<img src="asdf"></img>`,
			},
			filter: "",
			output: Item{
				Name:    "a",
				Link:    "b",
				Content: `<img src="asdf"/>`,
			},
		},
		{
			input: gofeed.Item{
				Title:   "a",
				Link:    "b",
				Content: "x y",
			},
			filter: "[a-z]*",
			output: Item{
				Name:    "a",
				Link:    "b",
				Content: "x<br>y",
			},
		},
	}
	for _, c := range cases {
		output := fromGofeedItem(&c.input, c.filter)
		if *output != c.output {
			t.Errorf("failed to convert gofeed: wanted %v, got %v", c.output, *output)
		}
	}
}