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🧹 [code health improvement] Refactor dsl_to_html in web.rs #122

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Tcode-Motion merged 1 commit into from
Sep 8, 2026
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🧹 [code health improvement] Refactor dsl_to_html in web.rs #122

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307 changes: 146 additions & 161 deletions stdlib/src/web.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -92,152 +92,161 @@ use techscript_runtime::{
static SERVER_RUNNING: AtomicBool = AtomicBool::new(false);
static PAGE_CONTENT: Mutex<String> = Mutex::new(String::new());

fn render_children(html: &mut String, dsl: &techscript_runtime::value::DslBlockValue) {
for child in &dsl.children {
html.push_str(&dsl_to_html(
&techscript_runtime::value::RuntimeValue::DslBlock(std::rc::Rc::new(child.clone())),
));
}
}

fn render_website(html: &mut String, dsl: &techscript_runtime::value::DslBlockValue) {
html.push_str("<!DOCTYPE html><html><head><meta charset=\"UTF-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<title>{}</title>", t));
}
}
_ => {}
}
}
html.push_str("<style>\
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');\
body { background: #0f172a; color: #f8fafc; font-family: 'Outfit', sans-serif; margin: 0; padding: 0; min-height: 100vh; display: flex; flex-direction: column; }\
header { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 2rem; background: rgba(15, 23, 42, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.05); position: sticky; top: 0; z-index: 100; }\
header h1 { font-size: 1.5rem; margin: 0; font-weight: 800; background: linear-gradient(135deg, #a855f7 0%, #3b82f6 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }\
nav { display: flex; gap: 1.5rem; }\
nav a { color: #94a3b8; text-decoration: none; font-weight: 500; transition: color 0.2s; }\
nav a:hover { color: #f8fafc; }\
.page { max-width: 1200px; margin: 0 auto; padding: 3rem 2rem; flex: 1; }\
.hero { text-align: center; padding: 5rem 1rem; position: relative; }\
.hero h1 { font-size: 4rem; font-weight: 800; margin: 0 0 1.5rem 0; background: linear-gradient(135deg, #c084fc 0%, #60a5fa 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }\
.hero .subtitle { font-size: 1.5rem; color: #94a3b8; max-width: 800px; margin: 0 auto 3rem auto; line-height: 1.6; }\
.hero a.start-button { background: #3b82f6; color: white; padding: 0.8rem 2rem; border-radius: 9999px; text-decoration: none; font-weight: 600; transition: all 0.2s; box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4); margin-right: 1rem; display: inline-block; }\
.hero a.start-button:hover { background: #2563eb; transform: translateY(-2px); }\
.hero button { background: rgba(255,255,255,0.05); color: #f8fafc; border: 1px solid rgba(255,255,255,0.1); padding: 0.8rem 2rem; border-radius: 9999px; font-weight: 600; cursor: pointer; transition: all 0.2s; }\
.hero button:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }\
.content-section { margin-top: 5rem; }\
.content-section h2 { font-size: 2.5rem; text-align: center; margin-bottom: 3rem; background: linear-gradient(135deg, #f8fafc 0%, #94a3b8 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }\
.grid-layout { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; margin-top: 2rem; }\
.card { background: rgba(30, 41, 59, 0.4); border: 1px solid rgba(255,255,255,0.05); padding: 2rem; border-radius: 16px; transition: all 0.3s; backdrop-filter: blur(8px); }\
.card:hover { transform: translateY(-5px); border-color: rgba(168, 85, 247, 0.4); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); }\
.card h3 { font-size: 1.5rem; margin: 0 0 1rem 0; color: #c084fc; }\
.card p { color: #94a3b8; line-height: 1.6; margin: 0; }\
footer { text-align: center; padding: 3rem 2rem; background: #0b0f19; border-top: 1px solid rgba(255,255,255,0.05); color: #64748b; font-size: 0.9rem; margin-top: auto; }\
</style>");
html.push_str("</head><body>");
render_children(html, dsl);
html.push_str("</body></html>");
}

fn render_page(html: &mut String, dsl: &techscript_runtime::value::DslBlockValue) {
html.push_str("<div class=\"page\">");
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = dsl.args.first() {
html.push_str(&format!("<h1>{}</h1>", t));
}
for prop in &dsl.properties {
if prop.name == "title" {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h2>{}</h2>", t));
}
}
}
render_children(html, dsl);
html.push_str("</div>");
}

fn render_hero(html: &mut String, dsl: &techscript_runtime::value::DslBlockValue) {
html.push_str("<section class=\"hero\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h1>{}</h1>", t));
}
}
"subtitle" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<p class=\"subtitle\">{}</p>", t));
}
}
_ => {}
}
}
render_children(html, dsl);
html.push_str("</section>");
}

fn render_section(html: &mut String, dsl: &techscript_runtime::value::DslBlockValue) {
html.push_str("<section class=\"content-section\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h2>{}</h2>", t));
}
}
"id" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<!-- id: {} -->", t));
}
}
_ => {}
}
}
html.push_str("<div class=\"grid-layout\">");
render_children(html, dsl);
html.push_str("</div>");
html.push_str("</section>");
}

fn render_card(html: &mut String, dsl: &techscript_runtime::value::DslBlockValue) {
html.push_str("<div class=\"card\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h3>{}</h3>", t));
}
}
"text" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<p>{}</p>", t));
}
}
"image" => {
if let Some(techscript_runtime::value::RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<img src=\"{}\" alt=\"card image\">", t));
}
}
_ => {}
}
}
html.push_str("</div>");
}

/// Convert a DslBlockValue tree to HTML string.
fn dsl_to_html(val: &RuntimeValue) -> String {
match val {
RuntimeValue::DslBlock(dsl) => {
let mut html = String::new();
match dsl.kind.as_str() {
"website" => {
html.push_str("<!DOCTYPE html><html><head><meta charset=\"UTF-8\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<title>{}</title>", t));
}
}
_ => {}
}
}
html.push_str("<style>\
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');\
body { background: #0f172a; color: #f8fafc; font-family: 'Outfit', sans-serif; margin: 0; padding: 0; min-height: 100vh; display: flex; flex-direction: column; }\
header { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem 2rem; background: rgba(15, 23, 42, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.05); position: sticky; top: 0; z-index: 100; }\
header h1 { font-size: 1.5rem; margin: 0; font-weight: 800; background: linear-gradient(135deg, #a855f7 0%, #3b82f6 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }\
nav { display: flex; gap: 1.5rem; }\
nav a { color: #94a3b8; text-decoration: none; font-weight: 500; transition: color 0.2s; }\
nav a:hover { color: #f8fafc; }\
.page { max-width: 1200px; margin: 0 auto; padding: 3rem 2rem; flex: 1; }\
.hero { text-align: center; padding: 5rem 1rem; position: relative; }\
.hero h1 { font-size: 4rem; font-weight: 800; margin: 0 0 1.5rem 0; background: linear-gradient(135deg, #c084fc 0%, #60a5fa 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }\
.hero .subtitle { font-size: 1.5rem; color: #94a3b8; max-width: 800px; margin: 0 auto 3rem auto; line-height: 1.6; }\
.hero a.start-button { background: #3b82f6; color: white; padding: 0.8rem 2rem; border-radius: 9999px; text-decoration: none; font-weight: 600; transition: all 0.2s; box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4); margin-right: 1rem; display: inline-block; }\
.hero a.start-button:hover { background: #2563eb; transform: translateY(-2px); }\
.hero button { background: rgba(255,255,255,0.05); color: #f8fafc; border: 1px solid rgba(255,255,255,0.1); padding: 0.8rem 2rem; border-radius: 9999px; font-weight: 600; cursor: pointer; transition: all 0.2s; }\
.hero button:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }\
.content-section { margin-top: 5rem; }\
.content-section h2 { font-size: 2.5rem; text-align: center; margin-bottom: 3rem; background: linear-gradient(135deg, #f8fafc 0%, #94a3b8 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }\
.grid-layout { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; margin-top: 2rem; }\
.card { background: rgba(30, 41, 59, 0.4); border: 1px solid rgba(255,255,255,0.05); padding: 2rem; border-radius: 16px; transition: all 0.3s; backdrop-filter: blur(8px); }\
.card:hover { transform: translateY(-5px); border-color: rgba(168, 85, 247, 0.4); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); }\
.card h3 { font-size: 1.5rem; margin: 0 0 1rem 0; color: #c084fc; }\
.card p { color: #94a3b8; line-height: 1.6; margin: 0; }\
footer { text-align: center; padding: 3rem 2rem; background: #0b0f19; border-top: 1px solid rgba(255,255,255,0.05); color: #64748b; font-size: 0.9rem; margin-top: auto; }\
</style>");
html.push_str("</head><body>");
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
html.push_str("</body></html>");
render_website(&mut html, dsl);
}
"page" => {
html.push_str("<div class=\"page\">");
if let Some(RuntimeValue::Str(t)) = dsl.args.first() {
html.push_str(&format!("<h1>{}</h1>", t));
}
for prop in &dsl.properties {
if prop.name == "title" {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h2>{}</h2>", t));
}
}
}
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
html.push_str("</div>");
render_page(&mut html, dsl);
}
"hero" => {
html.push_str("<section class=\"hero\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h1>{}</h1>", t));
}
}
"subtitle" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<p class=\"subtitle\">{}</p>", t));
}
}
_ => {}
}
}
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
html.push_str("</section>");
render_hero(&mut html, dsl);
}
"section" => {
html.push_str("<section class=\"content-section\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h2>{}</h2>", t));
}
}
"id" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<!-- id: {} -->", t));
}
}
_ => {}
}
}
html.push_str("<div class=\"grid-layout\">");
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
html.push_str("</div>");
html.push_str("</section>");
render_section(&mut html, dsl);
}
"card" => {
html.push_str("<div class=\"card\">");
for prop in &dsl.properties {
match prop.name.as_str() {
"title" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<h3>{}</h3>", t));
}
}
"text" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!("<p>{}</p>", t));
}
}
"image" => {
if let Some(RuntimeValue::Str(t)) = &prop.value {
html.push_str(&format!(
"<img src=\"{}\" alt=\"card image\">",
t
));
}
}
_ => {}
}
}
html.push_str("</div>");
render_card(&mut html, dsl);
}
"button" => {
let label = dsl
Expand Down Expand Up @@ -271,11 +280,7 @@ fn dsl_to_html(val: &RuntimeValue) -> String {
}
"nav" => {
html.push_str("<nav>");
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
render_children(&mut html, dsl);
html.push_str("</nav>");
}
"header" => {
Expand All @@ -287,11 +292,7 @@ fn dsl_to_html(val: &RuntimeValue) -> String {
}
}
}
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
render_children(&mut html, dsl);
html.push_str("</header>");
}
"footer" => {
Expand All @@ -303,11 +304,7 @@ fn dsl_to_html(val: &RuntimeValue) -> String {
}
}
}
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
render_children(&mut html, dsl);
html.push_str("</footer>");
}
"input" => {
Expand All @@ -325,29 +322,17 @@ fn dsl_to_html(val: &RuntimeValue) -> String {
}
"form" => {
html.push_str("<form>");
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
render_children(&mut html, dsl);
html.push_str("</form>");
}
"main" => {
html.push_str("<main>");
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
render_children(&mut html, dsl);
html.push_str("</main>");
}
"aside" => {
html.push_str("<aside>");
for child in &dsl.children {
html.push_str(&dsl_to_html(&RuntimeValue::DslBlock(Rc::new(
child.clone(),
))));
}
render_children(&mut html, dsl);
html.push_str("</aside>");
}
"start" => {
Expand Down
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