package templates

import (
	"bookhoard/internal/services"
	"net/url"
)

// Facet navigation helpers (faceted-navigation plan, Batch B).
//
// "Everything filterable should be clickable": every place a facet value
// is DISPLAYED links to the bookshelf pre-filtered by that value. The
// raw (stored) value rides the param — for genre that is the canonical
// lowercase form, while the shown text is prettified — so matching and
// display can never disagree. Series and tags keep their dedicated
// pages (/series/detail, /tags/detail) by design and do NOT use these
// helpers; author links predate them and stay as-is.

// FacetLink renders a facet value as an inline text link (metadata
// grid cells, the narrators line) to /bookshelf?<facet>_filter=<value>.
templ FacetLink(facet string, value string, display string) {
	<a href={ "/bookshelf?" + facet + "_filter=" + url.QueryEscape(value) } class="hover:underline" style="color: var(--text-primary);">{ display }</a>
}

// FacetBadge is the badge-styled FacetLink (the detail page's
// age-rating and story-arc badges).
templ FacetBadge(facet string, value string, display string) {
	<a href={ "/bookshelf?" + facet + "_filter=" + url.QueryEscape(value) } class="badge hover:opacity-80 transition-opacity" style="border: 1px solid var(--border); color: var(--text-secondary); text-decoration: none;">{ display }</a>
}

// languageDisplay renders a stored language value for display:
// "en" → "English"; unknown/legacy values pass through verbatim.
func languageDisplay(value string) string {
	if name := services.LanguageDisplayName(value); name != "" {
		return name
	}
	return value
}