package templates

import (
	"time"

	"alin.ovh/homestead/domain/content"
	"alin.ovh/homestead/domain/web/templates"
	"alin.ovh/homestead/shared/vcs"

	g "alin.ovh/gomponents"
	. "alin.ovh/gomponents/html"
)

func PostPage(site templates.SiteSettings, post *content.Post) g.Node {
	return templates.Layout(site, templates.PageSettings{
		Title:      post.Title,
		TitleAttrs: templates.Attrs{"class": "p-author h-card", "rel": "author"},
		BodyAttrs:  templates.Attrs{"class": "h-entry"},
	}, Article(
		Header(
			HGroup(
				H1(Class("p-name"), g.Text(post.Title)),
				P(Class("meta"),
					Span(Class("date"),
						g.Text("Published: "),
						A(Class("u-url"), Href(post.URL), postDate(post.Date, "dt-published")),
					),
					g.Iff(len(post.Commits) > 1, lastUpdated(post)),
				),
			),
		),
		Div(Class("e-content"),
			post,
		),
		g.If(len(post.Taxonomies.Tags) > 0,
			Div(Class("tags"),
				g.Text("Tags: "),
				Ul(Class("p-categories tags"),
					g.Map(post.Taxonomies.Tags, func(tag string) g.Node {
						return Li(
							tagLink(tag, Class("p-category")),
						)
					}),
				),
			),
		),
		g.If(len(post.Commits) > 1,
			Details(Class("changelog"),
				Summary(g.Text("Changelog")),
				Ul(
					g.Map(post.Commits, func(commit *vcs.Commit) g.Node {
						return Li(
							TitleAttr(commit.Description),
							postDate(commit.Date, ""),
							g.Text(" "),
							A(
								Href(commit.MakeFileLink(post.Input).String()),
								g.Text(commit.Summary),
							),
							g.Text(" "),
							g.If(
								len(commit.Description) > 0,
								Small(
									g.Text(" …"),
								),
							),
						)
					}),
				),
			),
		),
	))
}

func postDate(d time.Time, class string) g.Node {
	return Time(
		Class(class),
		DateTime(d.UTC().Format(time.RFC3339)),
		g.Text(d.Format("2006-01-02")),
	)
}

func lastUpdated(post *content.Post) func() g.Node {
	return func() g.Node {
		return Span(
			Class("date last-updated"),
			g.Text("Last updated: "),
			A(
				Href(post.Commits[0].MakeFileLink(post.Input).String()),
				postDate(post.Commits[0].Date, "dt-updated"),
			),
		)
	}
}