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package linkheader_test

import (
	"fmt"

	"github.com/tomnomnom/linkheader"
)

func ExampleParse() {
	header := "<https://api.github.com/user/58276/repos?page=2>; rel=\"next\"," +
		"<https://api.github.com/user/58276/repos?page=2>; rel=\"last\""
	links := linkheader.Parse(header)

	for _, link := range links {
		fmt.Printf("URL: %s; Rel: %s\n", link.URL, link.Rel)
	}

	// Output:
	// URL: https://api.github.com/user/58276/repos?page=2; Rel: next
	// URL: https://api.github.com/user/58276/repos?page=2; Rel: last
}

func ExampleParseMultiple() {
	headers := []string{
		"<https://api.github.com/user/58276/repos?page=2>; rel=\"next\"",
		"<https://api.github.com/user/58276/repos?page=2>; rel=\"last\"",
	}
	links := linkheader.ParseMultiple(headers)

	for _, link := range links {
		fmt.Printf("URL: %s; Rel: %s\n", link.URL, link.Rel)
	}

	// Output:
	// URL: https://api.github.com/user/58276/repos?page=2; Rel: next
	// URL: https://api.github.com/user/58276/repos?page=2; Rel: last
}

func ExampleLinks_FilterByRel() {
	header := "<https://api.github.com/user/58276/repos?page=2>; rel=\"next\"," +
		"<https://api.github.com/user/58276/repos?page=2>; rel=\"last\""
	links := linkheader.Parse(header)

	for _, link := range links.FilterByRel("last") {
		fmt.Printf("URL: %s; Rel: %s\n", link.URL, link.Rel)
	}

	// Output:
	// URL: https://api.github.com/user/58276/repos?page=2; Rel: last

}

func ExampleLink_String() {
	link := linkheader.Link{
		URL: "http://example.com/page/2",
		Rel: "next",
	}

	fmt.Printf("Link: %s\n", link.String())

	// Output:
	// Link: <http://example.com/page/2>; rel="next"
}

func ExampleLinks_String() {

	links := linkheader.Links{
		{URL: "http://example.com/page/3", Rel: "next"},
		{URL: "http://example.com/page/1", Rel: "last"},
	}

	fmt.Printf("Link: %s\n", links.String())

	// Output:
	// Link: <http://example.com/page/3>; rel="next", <http://example.com/page/1>; rel="last"
}