Dev — W06 (Feb 5 – 11)
Thu Feb 6 — Astro Horizon Prototype
Section titled “Thu Feb 6 — Astro Horizon Prototype”Astro Horizon Scaffold — Built a complete Astro + Vercel prototype for rendering Shopify themes server-side. Included Theme Assets API client, locale/shop data fetching, translation system (t filter), image/video components, money formatting, and asset URL utilities.
Section/Block Architecture — Added section and block registries, SectionRenderer/BlockRenderer components, settings resolver with color scheme inheritance, and section context tracking.
Component Library — Implemented hero, product-list, product-information, product-recommendations sections. Added header/footer section groups. Built text, button, group, spacer, divider, heading, paragraph blocks. Added product-card, product-media-gallery, variant-picker, buy-buttons, accordion, and slideshow blocks.
Cart & Interactivity — Cart drawer with state management, quick-add modal, server-side A/B testing infrastructure, ISR and edge caching configuration.
CSS & Styling — Extracted base CSS from Horizon, added CSS variable generator from settings, color scheme and spacing-style logic.
Fri Feb 7 — Transpiler Foundation
Section titled “Fri Feb 7 — Transpiler Foundation”Parser Module — Integrated Shopify’s liquid-html-parser for AST-based Liquid parsing.
Schema Generator — Added schema-to-TypeScript generator for Shopify section schemas.
Filter Library — Comprehensive Liquid filter library covering all standard Shopify filters.
Horizon Fixes — Fixed build with fallback components, added Divider/Marquee/Slideshow sections, DRY’d CSS loading from Horizon Liquid files.
Sat Feb 8 — Transpiler Core & Assembler
Section titled “Sat Feb 8 — Transpiler Core & Assembler”Expression Builder — Converts Liquid expressions to TypeScript/JSX equivalents with proper nil-coalescing and operator translation.
Logic Transformer — Handles if/unless/case/for/assign/capture/render/content_for tags.
Template Transformer — Full Liquid+HTML to generic TSX transformation pipeline.
Assembler Pipeline — CLI-driven pipeline generating all 34 sections, then extended to blocks + snippets for 229 total .astro files.
Runtime Layer — Section/block rendering with error boundaries, Shopify globals, style helpers, context-aware settings, Liquid adapters and data loader, section wrappers with variable isolation.
Package Extraction — Extracted @threshold/liquid-transpiler and @threshold/theme-schema into standalone workspace packages.
Sun Feb 9 — Test Suite & Rendering Parity
Section titled “Sun Feb 9 — Test Suite & Rendering Parity”Test Coverage — Added GICO test suite fixing 7 expression/template bugs. 100% filter coverage with 54 tests across all 48 filters.
Transpiler Fixes (batch) — Nil-coalescing, parseHtmlAttrs, style-function pipeline, whitespace gaps, Prettier syntax errors (8 bugs), operator precedence, echo tags, strip filters, settings spread.
Rendering Parity — Closed Shopify-to-Astro HTML gap for footer, URLs, CSS, style guards. Fixed safeSettings null guard, boolean attr parsing, filter imports, formatDate runtime, powered_by_link global.
Form Tag — Implemented {% form %} tag transpilation and form variable runtime.
Image/Media Runtime — Shopify placeholder SVGs, image runtime, layout transpiler (theme.liquid → ThemeLayout.astro).
Liquid Semantics — Nil-coalesce all template interpolations, process capture bodies, handle blank semantics for empty string comparisons, content_for and render inside {% liquid %} captures.
Mon Feb 10 — Context Threading & Product Pages
Section titled “Mon Feb 10 — Context Threading & Product Pages”Context Threading — Threaded section context through props instead of global stack. Snapshot section context in blocks with block IDs. Added closest context passing.
Snippet Improvements — Explicit sectionSettings in snippet render args, sh namespace for Shopify globals in snippets, bare sh globals to ContentFor conversion.
Product Data — Variant price data, collection title override, product card links, ATC hover, quick-add button. View All button wiring.
Style Functions — Closure-scoped style functions with param destructuring, render args, section classes, theme asset pipeline.
Tue Feb 11 — Edge Worker & Multi-Page Support
Section titled “Tue Feb 11 — Edge Worker & Multi-Page Support”Edge Worker — Cloudflare Worker reverse proxy for routing requests to the Astro renderer. Scoped cache keys by client slug for multi-tenant isolation.
Multi-Page Support — Added article, search, 404, blog index pages. Real pagination via page-data.ts.
Theme Parameterization — @horizon → @theme, centralized theme-loader.ts, parameterized theme paths removing hardcoded Horizon references.
View Transitions — Persistent header with fade animation (later removed in favor of full page loads + prefetching).
Unified Dev — pnpm dev kills stale ports, streams combined logs. Two-terminal workflow replaced with single command.
Liquid Object Factory — Canonical liquid-objects.ts for constructing Shopify Liquid objects from API data.
AsyncLocalStorage — Migrated mutable singletons to AsyncLocalStorage for request isolation.