1 files changed, 68 insertions, 0 deletions

diff --git a/vrsite/css.go b/vrsite/css.go
new file mode 100644
index 0000000..a2ca377
--- /dev/null
+++ b/vrsite/css.go
@@ -0,0 +1,68 @@
+// css.go — the stylesheet is generated per site: theme colors and the mixed
+// per-agent coverage colors become custom properties, one block per scheme.
+package main
+
+import (
+	"fmt"
+	"io"
+	"sort"
+	"strings"
+	texttemplate "text/template"
+)
+
+type cssVar struct{ K, V string }
+
+type synCSS struct{ Class, Style, Weight string }
+
+func renderCSS(w io.Writer, site *Site) error {
+	css, err := texttemplate.ParseFS(tfs, "assets/style.css.tmpl")
+	if err != nil {
+		return err
+	}
+	var unionKeys []string
+	seen := map[string]bool{}
+	for _, t := range []*Theme{site.Theme, site.Light} {
+		for k := range t.Syntax {
+			if !seen[k] {
+				seen[k] = true
+				unionKeys = append(unionKeys, k)
+			}
+		}
+	}
+	sort.Strings(unionKeys)
+	masks := site.masks()
+	themeVars := func(t *Theme) []cssVar {
+		vars := []cssVar{
+			{"--bg", t.Bg}, {"--fg", t.Fg}, {"--panel", t.Panel}, {"--border", t.Border},
+			{"--ln", t.LineNo}, {"--muted", t.Muted}, {"--accent", t.Accent},
+			{"--note", t.Note}, {"--hover", t.Hover},
+		}
+		for _, k := range unionKeys {
+			if s, ok := t.Syntax[k]; ok && s.Color != "" {
+				vars = append(vars, cssVar{"--s-" + strings.ReplaceAll(k, ".", "-"), s.Color})
+			}
+		}
+		for _, m := range masks {
+			vars = append(vars, cssVar{fmt.Sprintf("--am%d", m), site.maskColor(t, m)})
+		}
+		return vars
+	}
+	var syn []synCSS
+	for _, k := range unionKeys {
+		s := synCSS{Class: strings.ReplaceAll(k, ".", "-")}
+		if v, ok := site.Theme.Syntax[k]; ok {
+			if v.FontStyle != nil {
+				s.Style = *v.FontStyle
+			}
+			if v.FontWeight != nil {
+				s.Weight = fmt.Sprintf("%.0f", *v.FontWeight)
+			}
+		}
+		syn = append(syn, s)
+	}
+	return css.Execute(w, map[string]any{
+		"DarkName": site.Theme.Name, "LightName": site.Light.Name,
+		"DarkVars": themeVars(site.Theme), "LightVars": themeVars(site.Light),
+		"Syntax": syn, "MaskList": masks,
+	})
+}