specs/SD-0002-products-bulk-csv-import-export.md

@@ -425,7 +425,9 @@ Scenario: PUC-7 — The image-fetch phase reports per image
   And when complete, each image's outcome: fetched, rejected (below the
     resolution bar / not an image), or failed (unreachable)
   And products whose images were rejected or failed show a placeholder and
-    carry a visible badge on the Products page
+    are surfaced on the Products page — pre-#14 as an aggregate notice
+    ("N products have image problems") linking to the run detail; per-product
+    badges arrive with #14's list view
   And the Merchant can re-import corrected URLs to retry (upsert, BUC-3)
 ```
 
@@ -462,7 +464,9 @@ Scenario: PUC-10 — Re-importing an export is a no-op, and says so
     unmodified
   Then the preview shows every product as "unchanged" — nothing to add,
     nothing to update, no errors
-  And confirming (or canceling) leaves the catalog identical
+  And the import action is unavailable, with the note "Nothing to change —
+    your catalog already matches this file"
+  And canceling leaves the catalog identical
 ```
 
 **PUC-11 — Learning the format** *(realizes BUC-1 for the cold-start merchant)*
@@ -479,7 +483,117 @@ Scenario: PUC-11 — The sample CSV and column reference teach the shape
 
 ## 5. UX Layout
 
-*(not yet authored)*
+Text is the source of truth; wireframes are generated from these descriptions
+on demand and never committed. All surfaces live inside SD-0001's admin shell
+(its header: storefront name left, signed-in email + sign out right).
+
+### 5.1 Design tooling decision
+
+- **Decision:** Code directly.
+- **Rationale:** rubric score **−1** (claude-design-vs-code.md): Q1 **+1**
+  (net-new Products section, no data-surface precedent in the codebase),
+  Q2 **−1** (this section describes the UI to wireframe level — named
+  components, enumerated states), Q3 **0** (one admin section, multi-step but
+  utilitarian), Q4 **+1** (no design system in the ecomm app yet), Q5 **−1**
+  (solo build, operator is the only reviewer), Q6 **−1** (work is dominantly
+  logic: parsing, diffing, upsert, image pipeline). Default at −1 is Code; no
+  override fires — the import preview is novel but structural, and prose
+  specifies it adequately.
+
+### 5.2 Screen: Products (serves PUC-1, PUC-7, PUC-8, PUC-9, PUC-11)
+
+- **Purpose:** the catalog's home in the admin; where imports start, exports
+  download, and past imports are reviewed. Created by this design; #14 fills
+  in the browsable list.
+- **Layout (top → bottom):**
+  - **Header row:** title "Products" + product count (e.g. "Products · 412");
+    actions right-aligned: secondary **"Export"** (opens a small menu: status
+    filter All / Active / Draft / Archived, then downloads — PUC-9; disabled
+    with a note when the catalog is empty), primary **"Import products"**
+    (→ §5.3).
+  - **Notices band (conditional):** image-problems aggregate notice — "N
+    products have image problems" linking to the most recent run's detail
+    (PUC-7); shown while any product's image status is rejected/failed.
+  - **Primary content, empty catalog:** empty state — "No products yet. Bulk
+    import is how product data gets in." with the **"Import products"**
+    action repeated, plus links **"Download sample CSV"** and **"Column
+    reference"** (PUC-11).
+  - **Primary content, populated catalog:** the honest pre-#14 state — the
+    product count and one line: "Your catalog is loaded. The browsable
+    product list arrives with an upcoming release." (replaced by #14's list).
+  - **Import history (section):** table of runs, newest first — date · file
+    name · dialect · added / updated / errors · image outcomes (e.g.
+    "4,938 ✓ · 12 ✗") · status (Importing… / Fetching images… / Complete /
+    Complete with problems). Row click → run detail (§5.5). Empty state: "No
+    imports yet."
+- **States:** loading: skeleton for count + history · error: honest failure
+  banner with retry (INV-9 spirit) · empty/populated per above.
+- **Notifications:** none beyond the notices band (no toasts here; outcomes
+  live on durable surfaces).
+
+### 5.3 Screen: Import — upload (serves PUC-2, PUC-5a, PUC-11)
+
+- **Purpose:** choose and validate a file.
+- **Layout:**
+  - **Header:** "Import products", back to Products.
+  - **Primary content:** drop zone / file picker ("CSV, up to 5,000 rows");
+    beneath it the format help: "Works with the canonical format or a Shopify
+    product export." + links to sample CSV and column reference (PUC-11).
+  - **Actions:** none beyond the picker — selecting a file starts upload +
+    validation immediately (one fewer click; canceling is free, PUC-3a).
+- **States:** idle · uploading/validating: progress ("Validating… 2,140 of
+  4,950 rows") with cancel · file-level rejection (PUC-5a): error banner
+  naming the one problem ("This file is missing the required column
+  'Title'"), picker remains for retry · success: → preview (§5.4).
+- **Notifications:** none (errors render in place).
+
+### 5.4 Screen: Import — preview (serves PUC-3, PUC-3a, PUC-5, PUC-6, PUC-10)
+
+- **Purpose:** the consent gate — see exactly what will happen, then decide.
+- **Layout:**
+  - **Header:** "Import preview — ⟨file name⟩"; dialect line: "Recognized:
+    Shopify product CSV — mapped to canonical" or "Canonical format" (PUC-6).
+  - **Warnings band (conditional):** columns not imported, listed by name
+    (unknown-column warning); collapsible when long.
+  - **Summary tiles:** **N to add · M to update · U unchanged · K errors** —
+    each tile filters the detail list below.
+  - **Detail list:** one row per product (grouped from its variant rows):
+    handle, title, change kind (add / update / unchanged / error), variant
+    count. Expanding a row drills in (PUC-3): adds show the fields to be
+    set; updates show a field-by-field **before → after** diff (only changed
+    fields, per variant where applicable); errors show the error detail.
+  - **Error table (under the errors filter):** line number · column · plain-
+    language problem ("row 214: 'Variant Price' — '12,50' is not a price").
+  - **Actions (sticky footer):** primary **"Import N products"** (disabled
+    when nothing valid to apply — all-unchanged reads "Nothing to change —
+    your catalog already matches this file", PUC-10); secondary **"Cancel"**
+    (returns to Products, no trace, PUC-3a).
+- **States:** the preview *is* a state machine of its content (mixes of
+  add/update/unchanged/error per above); plus stale-session expiry: a preview
+  left open past its validity window (§6) prompts re-validation rather than
+  applying stale diffs.
+- **Notifications:** none.
+
+### 5.5 Screen: Import run detail (serves PUC-4, PUC-5, PUC-7, PUC-8)
+
+- **Purpose:** the durable record of one confirmed import — what applied, what
+  errored, how the image fetch went. The post-confirm landing page and the
+  import-history destination.
+- **Layout:**
+  - **Header:** file name · imported ⟨relative time⟩ by ⟨email⟩ · dialect.
+  - **Result summary:** added / updated / errors counts (mirrors the preview's
+    final numbers).
+  - **Images section:** while fetching — progress "Fetching images: 312 of
+    4,950" (updates live); when done — outcome summary ("4,938 fetched ·
+    9 rejected · 3 failed") and an outcomes table listing only problems:
+    product handle · variant · image URL · outcome (rejected: below the
+    resolution bar / not an image · failed: unreachable) · what to do
+    ("correct the URL and re-import"). All-clean collapses to one line.
+  - **Error table:** the run's unapplied rows (line · column · problem),
+    exactly as the preview showed them (PUC-5).
+- **States:** applying ("Importing…") · fetching images · complete · complete
+  with problems (errors and/or image problems present).
+- **Notifications:** in-app only (decided: no email summaries in the MVP).
 
 ## 6. Technical Design