remove patch file

Since the inventory is mostly containing enginge oils, which are sold per liter, the default unit for a new part is set to liter

.gitignore

@@ -1,6 +1,7 @@
 node_modules/
 .svelte-kit/
 build/
+dist/
 data/
 backups/
 *.log
@@ -11,3 +12,5 @@ backups/
 *.sw?
 .session.vim
 .claude/settings.local.json
+*~
+/*.bat

Makefile

@@ -1,4 +1,8 @@
-.PHONY: help install run build db-init db-reset docker-build docker-shell clean clean-all bundle bundle-clean
+.PHONY: help install run build db-init db-reset docker-build docker-shell clean clean-all bundle patch bundle-clean
+
+SHELL := /bin/bash
+# Activate the Node version pinned in .nvmrc (16.x) for every recipe.
+NVM := . $$HOME/.nvm/nvm.sh && nvm use --silent
 
 DC := docker compose
 
@@ -8,40 +12,41 @@ help:
 	@echo "  ║  AvtoAmbor — auto parts inventory (dev tasks)  ║"
 	@echo "  ╚════════════════════════════════════════════════╝"
 	@echo ""
-	@echo "  make install       Install npm dependencies inside the container"
+	@echo "  make install       Install npm dependencies (Node 16 via nvm)"
 	@echo "  make run           Start the dev server (http://localhost:3000)"
 	@echo "  make build         Production build into ./build (adapter-node)"
 	@echo "  make db-init       Create data/avtoambor.db from schema + seed (skip if exists)"
 	@echo "  make db-reset      DELETE and recreate data/avtoambor.db (asks first)"
-	@echo "  make docker-build  Rebuild the Docker image"
+	@echo "  make docker-build  Rebuild the Docker image (legacy; dev runs on host now)"
 	@echo "  make docker-shell  Open an interactive bash shell in the container"
 	@echo "  make clean         Remove node_modules and build/ (keeps data/)"
 	@echo "  make clean-all     Also wipe data/ (destroys the DB)"
 	@echo "  make bundle        Produce dist/avtoambor-deploy.zip for Windows 7"
+	@echo "  make patch         Produce dist/avtoambor-patch.zip (build/ only) for an installed target"
 	@echo "  make bundle-clean  Remove dist/"
 	@echo ""
 
 install:
-	@$(DC) run --rm app npm install
+	@$(NVM) && npm install
 
 run:
-	@$(DC) up
+	@$(NVM) && npm run dev
 
 build:
-	@$(DC) run --rm app npm run build
+	@$(NVM) && npm run build
 
 db-init:
 	@if [ -f data/avtoambor.db ]; then \
 		echo "data/avtoambor.db already exists — skipping. Use 'make db-reset' to recreate."; \
 	else \
-		mkdir -p data && $(DC) run --rm app node scripts/init-db.js; \
+		mkdir -p data && $(NVM) && node scripts/init-db.js; \
 	fi
 
 db-reset:
 	@printf "This will DELETE data/avtoambor.db. Continue? [y/N] " && read ans && [ "$$ans" = "y" ] || (echo "aborted." && exit 1)
 	@rm -f data/avtoambor.db data/avtoambor.db-shm data/avtoambor.db-wal
 	@mkdir -p data
-	@$(DC) run --rm app node scripts/init-db.js
+	@$(NVM) && node scripts/init-db.js
 
 docker-build:
 	@$(DC) build
@@ -61,6 +66,11 @@ clean-all: clean
 bundle:
 	@bash scripts/make-bundle.sh
 
+# Small build/-only update zip for an already-installed target.
+# Requires a prior `make bundle` to establish dist/avtoambor/ as the baseline.
+patch:
+	@bash scripts/make-patch.sh
+
 bundle-clean:
 	@rm -rf dist
 	@echo "removed dist/"

deploy/install.bat

@@ -6,16 +6,6 @@ chcp 65001 >nul
 setlocal
 cd /d "%~dp0"
 
-if exist "%ProgramFiles%\nodejs\node.exe" (
-  echo Node.js уже установлен в %ProgramFiles%\nodejs.
-  echo Пропускаем установку.
-  goto :done
-)
-if exist "%ProgramFiles(x86)%\nodejs\node.exe" (
-  echo Node.js уже установлен в %ProgramFiles(x86)%\nodejs.
-  echo Пропускаем установку.
-  goto :done
-)
 
 set "MSI=node-v16.20.2-x64.msi"
 if /i "%PROCESSOR_ARCHITECTURE%"=="x86" if not defined PROCESSOR_ARCHITEW6432 set "MSI=node-v16.20.2-x86.msi"

deploy/start.bat

@@ -34,7 +34,8 @@ set "PORT=3000"
 set "HOST=0.0.0.0"
 set "ORIGIN=http://localhost:3000"
 
-start "" http://localhost:3000
+REM start "" http://localhost:3000
+"C:\Program Files\Google\Chrome\Application\chrome_proxy.exe" --profile-directory=Default --app-id=jndfkokbljfmkpnammckejpeijmbbhhe
 
 echo Сервер запущен на http://localhost:3000
 echo Закройте это окно, чтобы остановить программу.

scripts/make-patch.sh

@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+# Build dist/avtoambor-patch.zip — a small build/-only update for an
+# already-installed Windows deployment.
+#
+# Use this when only application code has changed since the last full bundle.
+# The patch is just the SvelteKit build output; node_modules, .bat launchers,
+# and the native better-sqlite3 binary on the target stay untouched.
+#
+# The script compares package-lock.json and src/lib/server/*.sql against the
+# staging snapshot left by scripts/make-bundle.sh (dist/avtoambor/). If those
+# changed, a full re-bundle is required instead — the patch alone won't work.
+
+set -euo pipefail
+
+cd "$(dirname "$0")/.."
+ROOT="$(pwd)"
+DIST="$ROOT/dist"
+BASELINE="$DIST/avtoambor"
+PATCH_DIR="$DIST/patch"
+ZIP="$DIST/avtoambor-patch.zip"
+
+for cmd in npm zip rsync diff; do
+  command -v "$cmd" >/dev/null || { echo "make-patch.sh: missing required tool: $cmd"; exit 1; }
+done
+
+if [ ! -d "$BASELINE" ]; then
+  echo "make-patch.sh: no baseline at $BASELINE."
+  echo "  Run scripts/make-bundle.sh first to establish a baseline."
+  exit 1
+fi
+
+# --- safety checks: things a build/-only patch cannot deliver ---
+WARN=0
+warn() { echo "  ! $*"; WARN=1; }
+
+echo "==> Checking patch safety against baseline ($BASELINE)"
+if ! diff -q "$ROOT/package-lock.json" "$BASELINE/package-lock.json" >/dev/null 2>&1; then
+  warn "package-lock.json changed — node_modules on target is stale. Full bundle required."
+fi
+for f in schema.sql seed.sql; do
+  if ! diff -q "$ROOT/src/lib/server/$f" "$BASELINE/src/lib/server/$f" >/dev/null 2>&1; then
+    warn "src/lib/server/$f changed — target DB may need a migration."
+  fi
+done
+
+if [ "$WARN" = 1 ]; then
+  echo
+  echo "Patch may be unsafe."
+  echo "Either:"
+  echo "  - run scripts/make-bundle.sh and ship the full bundle, or"
+  echo "  - re-run this script with FORCE=1 if you know the change is harmless."
+  if [ "${FORCE:-0}" != "1" ]; then
+    exit 1
+  fi
+  echo "FORCE=1 set — continuing anyway."
+fi
+
+echo "==> Building production output (vite build)"
+npm run build
+
+echo "==> Staging patch contents"
+rm -rf "$PATCH_DIR"
+mkdir -p "$PATCH_DIR"
+rsync -a --delete build/ "$PATCH_DIR/build/"
+
+STAMP="$(date +%Y-%m-%d)"
+cat > "$PATCH_DIR/UPDATE.txt" <<EOF
+Замена Масла ГП — обновление программы ($STAMP)
+================================================
+
+Этот архив содержит только новую версию программы (папка build).
+Ваши данные (data\\, backups\\) и установленный Node.js не затрагиваются.
+
+Как установить обновление:
+
+  1. Закройте чёрное окно "start.bat", если программа запущена.
+
+  2. Распакуйте этот архив в папку C:\\avtoambor\\
+     (туда же, где лежат install.bat и start.bat).
+     Windows спросит, заменить ли существующие файлы — ответьте "Да"
+     (или "Заменить файлы в папке назначения").
+
+  3. Снова запустите start.bat двойным щелчком.
+
+Если после обновления программа не запускается — напишите Давиду.
+EOF
+
+echo "==> Creating zip: $ZIP"
+rm -f "$ZIP"
+( cd "$PATCH_DIR" && zip -rq "$ZIP" build UPDATE.txt )
+
+ZIP_SIZE="$(du -h "$ZIP" | cut -f1)"
+echo
+echo "═══════════════════════════════════════════════════════════════"
+echo " Patch ready: $ZIP ($ZIP_SIZE)"
+echo "═══════════════════════════════════════════════════════════════"
+echo
+echo " Next steps (you):"
+echo "   1. Upload $ZIP to your server."
+echo "   2. Send him the download link."
+echo
+echo " What he does (also written in UPDATE.txt inside the zip):"
+echo "   1. Close the start.bat window."
+echo "   2. Extract the zip into C:\\avtoambor\\ — choose Replace when asked."
+echo "   3. Double-click start.bat."
+echo

src/lib/i18n/en.json

@@ -42,7 +42,7 @@
   },
   "dashboard": {
     "title": "Dashboard",
-    "total_skus": "Total SKUs",
+    "total_skus": "Total parts",
     "low_stock": "At or below reorder level",
     "inventory_value": "Inventory value (at cost)",
     "low_stock_list": "Low stock",
@@ -68,11 +68,12 @@
     "location": "Location",
     "barcode": "Barcode",
     "active": "Active",
-    "search_placeholder": "Search by SKU, name, or barcode…",
+    "search_placeholder": "Search by name or barcode…",
     "no_results": "No parts match your search.",
     "all": "All",
     "recent_movements": "Recent movements",
     "initial_quantity": "Initial quantity",
+    "delete_confirm": "Deactivate part \"{name}\"? It will be hidden from lists, but movements and counts will be kept.",
     "errors": {
       "sku_required": "SKU is required.",
       "name_required": "At least one name (English or Tajik) is required.",
@@ -142,15 +143,17 @@
     "this_month": "This month",
     "all_time": "All time",
     "invoices": "invoices",
-    "active_skus": "Active SKUs",
+    "active_skus": "Active parts",
     "units_on_hand": "Units on hand",
     "cost_value": "Value (at cost)",
-    "sale_value": "Value (at sale)",
     "low_stock": "Low stock",
     "out_of_stock": "Out of stock",
     "top_parts": "Top selling parts",
     "units_sold": "Units sold",
     "revenue": "Revenue",
+    "sale": "Sale",
+    "cog": "COG",
+    "profit": "Profit",
     "recent_sales": "Recent sales",
     "saved_at": "Saved",
     "lines": "Lines",

src/lib/i18n/store.js

@@ -85,3 +85,20 @@ export function formatMoney(dirams, lang = 'en') {
   const s = n.toFixed(2);
   return lang === 'tg' ? s.replace('.', ',') : s;
 }
+
+export function formatTs(utcStr) {
+  if (!utcStr) return '';
+
+  const normalized = String(utcStr).trim().replace(' ', 'T');
+  const utcDate = new Date(`${normalized}Z`);
+  if (Number.isNaN(utcDate.getTime())) return utcStr;
+
+  const tajikDate = new Date(utcDate.getTime() + 5 * 60 * 60 * 1000);
+  const pad = (n) => String(n).padStart(2, '0');
+
+  return [
+    pad(tajikDate.getUTCDate()),
+    pad(tajikDate.getUTCMonth() + 1),
+    tajikDate.getUTCFullYear()
+  ].join('.') + ` ${pad(tajikDate.getUTCHours())}:${pad(tajikDate.getUTCMinutes())}`;
+}

src/lib/i18n/tg.json

@@ -42,7 +42,7 @@
   },
   "dashboard": {
     "title": "Лавҳаи асосӣ",
-    "total_skus": "Ҳамаи SKU-ҳо",
+    "total_skus": "Ҳамаи қисмҳо",
     "low_stock": "Дар сатҳи фармоиш ё камтар",
     "inventory_value": "Арзиши захира (бо нархи харид)",
     "low_stock_list": "Захираи кам",
@@ -68,11 +68,12 @@
     "location": "Ҷой",
     "barcode": "Штрих-код",
     "active": "Фаъол",
-    "search_placeholder": "Ҷустуҷӯ аз рӯи SKU, ном ё штрих-код…",
+    "search_placeholder": "Ҷустуҷӯ аз рӯи ном ё штрих-код…",
     "no_results": "Ҳеҷ қисм мувофиқат намекунад.",
     "all": "Ҳама",
     "recent_movements": "Ҳаракатҳои охирин",
     "initial_quantity": "Шумораи аввала",
+    "delete_confirm": "Қисми «{name}»-ро ғайрифаъол мекунед? Дар рӯйхатҳо нишон дода намешавад, аммо ҳаракатҳо ва ҳисобҳо боқӣ мемонанд.",
     "errors": {
       "sku_required": "SKU зарур аст.",
       "name_required": "Ҳадди ақалл як ном (англисӣ ё тоҷикӣ) зарур аст.",
@@ -142,15 +143,17 @@
     "this_month": "Ин моҳ",
     "all_time": "Тамоми давра",
     "invoices": "фактура",
-    "active_skus": "SKU-ҳои фаъол",
+    "active_skus": "Қисмҳои фаъол",
     "units_on_hand": "Дар анбор",
     "cost_value": "Арзиш (бо нархи харид)",
-    "sale_value": "Арзиш (бо нархи фурӯш)",
     "low_stock": "Захираи кам",
     "out_of_stock": "Тамом шуд",
     "top_parts": "Қисмҳои серфурӯш",
     "units_sold": "Фурӯхта шуд",
     "revenue": "Даромад",
+    "sale": "Фурӯш",
+    "cog": "Арзиши мол",
+    "profit": "Фоида",
     "recent_sales": "Фурӯшҳои охирин",
     "saved_at": "Сабт шуд",
     "lines": "Сатрҳо",

src/lib/server/parts.js

@@ -1,20 +1,21 @@
+import { randomUUID } from 'node:crypto';
 import { getDb } from './db.js';
 
 // Columns the user can sort the parts list by. Anything else is ignored.
 const SORTABLE = new Set([
-  'sku', 'name_en', 'name_tg', 'quantity_on_hand',
+  'name_en', 'name_tg', 'quantity_on_hand',
   'sale_price', 'cost_price', 'reorder_level', 'updated_at'
 ]);
 
-export function listParts({ q = '', sort = 'sku', dir = 'asc', categoryIds = [] } = {}) {
+export function listParts({ q = '', sort = 'name_en', dir = 'asc', categoryIds = [] } = {}) {
   const db = getDb();
-  const col = SORTABLE.has(sort) ? sort : 'sku';
+  const col = SORTABLE.has(sort) ? sort : 'name_en';
   const order = dir === 'desc' ? 'DESC' : 'ASC';
 
-  const where = [];
+  const where = ['p.active = 1'];
   const params = {};
   if (q && q.trim()) {
-    where.push(`(p.sku LIKE @q OR p.name_en LIKE @q OR p.name_tg LIKE @q OR p.barcode LIKE @q)`);
+    where.push(`(p.name_en LIKE @q OR p.name_tg LIKE @q OR p.barcode LIKE @q)`);
     params.q = `%${q.trim()}%`;
   }
   if (categoryIds && categoryIds.length) {
@@ -22,7 +23,7 @@ export function listParts({ q = '', sort = 'sku', dir = 'asc', categoryIds = []
     where.push(`p.category_id IN (${placeholders})`);
     categoryIds.forEach((id, i) => { params[`cat${i}`] = id; });
   }
-  const whereSql = where.length ? `WHERE ${where.join(' AND ')}` : '';
+  const whereSql = `WHERE ${where.join(' AND ')}`;
 
   const sql = `
     SELECT p.*, c.name_en AS category_name_en, c.name_tg AS category_name_tg
@@ -59,6 +60,7 @@ export function categoriesWithParts() {
   return getDb().prepare(`
     SELECT c.* FROM categories c
     JOIN parts p ON p.category_id = c.id
+    WHERE p.active = 1
     GROUP BY c.id
     ORDER BY c.sort_order, c.name_en
   `).all();
@@ -66,7 +68,7 @@ export function categoriesWithParts() {
 
 export function createPart(input) {
   const db = getDb();
-  const stmt = db.prepare(`
+  const insertStmt = db.prepare(`
     INSERT INTO parts
       (sku, name_en, name_tg, description_en, description_tg,
        category_id, unit, cost_price, sale_price,
@@ -76,15 +78,28 @@ export function createPart(input) {
        @category_id, @unit, @cost_price, @sale_price,
        @quantity_on_hand, @reorder_level, @location, @barcode, @active)
   `);
-  const result = stmt.run(normalizePart(input));
-  return result.lastInsertRowid;
+  const stampStmt = db.prepare(`UPDATE parts SET sku = 'SKU-' || id WHERE id = ?`);
+
+  // SKU is hidden from the UI; the user never types one. The column is still
+  // NOT NULL UNIQUE, so insert with a uuid placeholder and rewrite to SKU-{id}
+  // once we know the row id.
+  const tx = db.transaction((data) => {
+    const userSku = (data.sku || '').trim();
+    const sku = userSku || `__pending__${randomUUID()}`;
+    const result = insertStmt.run({ ...data, sku });
+    const id = result.lastInsertRowid;
+    if (!userSku) stampStmt.run(id);
+    return id;
+  });
+  return tx(normalizePart(input));
 }
 
 export function updatePart(id, input) {
   const db = getDb();
+  // SKU is intentionally NOT updated here — it's hidden from the UI and frozen
+  // after creation (auto-stamped as `SKU-{id}` in createPart).
   const stmt = db.prepare(`
     UPDATE parts SET
-      sku             = @sku,
       name_en         = @name_en,
       name_tg         = @name_tg,
       description_en  = @description_en,
@@ -132,11 +147,17 @@ function toDirams(value) {
   return Math.round(num * 100);
 }
 
+export function deactivatePart(id) {
+  getDb()
+    .prepare(`UPDATE parts SET active = 0, updated_at = datetime('now') WHERE id = ?`)
+    .run(Number(id));
+}
+
 export function lowStockParts(limit = 10) {
   return getDb().prepare(`
     SELECT * FROM parts
     WHERE active = 1 AND quantity_on_hand <= reorder_level
-    ORDER BY (quantity_on_hand - reorder_level) ASC, sku ASC
+    ORDER BY (quantity_on_hand - reorder_level) ASC, name_en ASC
     LIMIT ?
   `).all(limit);
 }

src/lib/server/reports.js

@@ -1,45 +1,38 @@
 import { getDb } from './db.js';
 
-// All time windows are computed in local time using SQLite's `datetime('now', 'localtime')`.
+// All time windows are computed in Tajikistan time (UTC+5) while timestamps are stored as UTC.
+// Cost of goods (COG) and profit are computed against each part's current cost_price —
+// the schema does not snapshot cost at sale time, so historical cost changes are not
+// reflected. Custom (non-inventory) lines contribute to sale revenue but have zero COG.
+
+const COG_SUBQUERY = `
+  COALESCE((
+    SELECT SUM(l.quantity * p.cost_price)
+    FROM invoice_lines l
+    JOIN parts p ON p.id = l.part_id
+    WHERE l.invoice_id = invoices.id AND l.affects_inventory = 1
+  ), 0)
+`;
+
+function windowStats(dateClause) {
+  return getDb().prepare(`
+    SELECT
+      COUNT(*) AS invoice_count,
+      COALESCE(SUM(total_dirams), 0) AS sale_dirams,
+      COALESCE(SUM(${COG_SUBQUERY}), 0) AS cog_dirams,
+      COALESCE(SUM(total_dirams - ${COG_SUBQUERY}), 0) AS profit_dirams
+    FROM invoices
+    WHERE status = 'saved'${dateClause ? ' AND ' + dateClause : ''}
+  `).get();
+}
 
 export function salesSummary() {
-  const db = getDb();
-  const row = db.prepare(`
-    SELECT
-      COUNT(*) AS invoice_count,
-      COALESCE(SUM(total_dirams), 0) AS total_dirams
-    FROM invoices
-    WHERE status = 'saved'
-  `).get();
-
-  const today = db.prepare(`
-    SELECT
-      COUNT(*) AS invoice_count,
-      COALESCE(SUM(total_dirams), 0) AS total_dirams
-    FROM invoices
-    WHERE status = 'saved'
-      AND date(saved_at, 'localtime') = date('now', 'localtime')
-  `).get();
-
-  const week = db.prepare(`
-    SELECT
-      COUNT(*) AS invoice_count,
-      COALESCE(SUM(total_dirams), 0) AS total_dirams
-    FROM invoices
-    WHERE status = 'saved'
-      AND date(saved_at, 'localtime') >= date('now', 'localtime', '-6 days')
-  `).get();
-
-  const month = db.prepare(`
-    SELECT
-      COUNT(*) AS invoice_count,
-      COALESCE(SUM(total_dirams), 0) AS total_dirams
-    FROM invoices
-    WHERE status = 'saved'
-      AND strftime('%Y-%m', saved_at, 'localtime') = strftime('%Y-%m', 'now', 'localtime')
-  `).get();
-
-  return { all_time: row, today, week, month };
+  return {
+    all_time: windowStats(''),
+    today: windowStats(`date(saved_at, '+5 hours') = date('now', '+5 hours')`),
+    week: windowStats(`date(saved_at, '+5 hours') >= date('now', '+5 hours', '-6 days')`),
+    month: windowStats(`strftime('%Y-%m', saved_at, '+5 hours') = strftime('%Y-%m', 'now', '+5 hours')`)
+  };
 }
 
 export function topSellingParts(limit = 10) {
@@ -47,13 +40,15 @@ export function topSellingParts(limit = 10) {
     SELECT
       p.id, p.sku, p.name_en, p.name_tg,
       SUM(l.quantity) AS units_sold,
-      SUM(l.quantity * l.unit_price_dirams) AS revenue_dirams
+      SUM(l.quantity * l.unit_price_dirams) AS sale_dirams,
+      SUM(l.quantity * p.cost_price) AS cog_dirams,
+      SUM(l.quantity * (l.unit_price_dirams - p.cost_price)) AS profit_dirams
     FROM invoice_lines l
     JOIN invoices i ON i.id = l.invoice_id
     JOIN parts p    ON p.id = l.part_id
     WHERE i.status = 'saved' AND l.affects_inventory = 1
     GROUP BY p.id
-    ORDER BY units_sold DESC, revenue_dirams DESC
+    ORDER BY profit_dirams DESC, units_sold DESC
     LIMIT ?
   `).all(limit);
 }
@@ -84,7 +79,12 @@ export function inventorySummary() {
 
 export function recentSales(limit = 10) {
   return getDb().prepare(`
-    SELECT id, total_dirams, saved_at,
+    SELECT
+      id,
+      total_dirams AS sale_dirams,
+      ${COG_SUBQUERY} AS cog_dirams,
+      total_dirams - ${COG_SUBQUERY} AS profit_dirams,
+      saved_at,
       (SELECT COUNT(*) FROM invoice_lines WHERE invoice_id = invoices.id) AS line_count
     FROM invoices
     WHERE status = 'saved'

src/routes/+page.svelte

@@ -1,5 +1,5 @@
 <script>
-  import { locale, t, localized } from '$lib/i18n/store.js';
+  import { locale, t, localized, formatTs } from '$lib/i18n/store.js';
 
   export let data;
   $: lang = $locale;
@@ -15,7 +15,6 @@
   <table>
     <thead>
       <tr>
-        <th>{$t('parts.sku')}</th>
         <th>{$t('parts.name')}</th>
         <th class="num">{$t('parts.quantity_on_hand')}</th>
         <th class="num">{$t('parts.reorder_level')}</th>
@@ -24,8 +23,7 @@
     <tbody>
       {#each lowStock as p}
         <tr>
-          <td><a href="/parts/{p.id}">{p.sku}</a></td>
-          <td>{localized(p, 'name', lang)}</td>
+          <td><a href="/parts/{p.id}">{localized(p, 'name', lang)}</a></td>
           <td class="num"><span class="pill low">{p.quantity_on_hand}</span></td>
           <td class="num">{p.reorder_level}</td>
         </tr>
@@ -43,7 +41,6 @@
       <tr>
         <th>{$t('movements.created_at')}</th>
         <th>{$t('movements.type')}</th>
-        <th>{$t('parts.sku')}</th>
         <th>{$t('parts.name')}</th>
         <th class="num">{$t('movements.quantity')}</th>
       </tr>
@@ -51,10 +48,9 @@
     <tbody>
       {#each movements as m}
         <tr>
-          <td>{m.created_at}</td>
+          <td>{formatTs(m.created_at)}</td>
           <td><span class="pill">{$t('movements.type_' + m.movement_type)}</span></td>
-          <td><a href="/parts/{m.part_id}">{m.sku}</a></td>
-          <td>{localized(m, 'name', lang)}</td>
+          <td><a href="/parts/{m.part_id}">{localized(m, 'name', lang)}</a></td>
           <td class="num">{m.quantity}</td>
         </tr>
       {/each}

src/routes/admin/reports/+page.svelte

@@ -1,53 +1,35 @@
 <script>
-  import { locale, t, localized, formatMoney } from '$lib/i18n/store.js';
+  import { locale, t, localized, formatMoney, formatTs } from '$lib/i18n/store.js';
 
   export let data;
   $: lang = $locale;
   $: ({ sales, topParts, inventory, recentSales } = data);
 
-  function formatWhen(iso) {
-    if (!iso) return '';
-    const d = new Date(iso.replace(' ', 'T') + 'Z');
-    const pad = (n) => String(n).padStart(2, '0');
-    return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}`;
-  }
 </script>
 
 <h2>{$t('reports.sales_heading')}</h2>
 
 <div class="grid">
-  <div class="card stat">
-    <div class="label">{$t('reports.today')}</div>
-    <div class="value">
-      {formatMoney(sales.today.total_dirams, lang)}
-      <span class="cur">{$t('common.currency_short')}</span>
+  {#each [
+    { label: $t('reports.today'), row: sales.today },
+    { label: $t('reports.last_7_days'), row: sales.week },
+    { label: $t('reports.this_month'), row: sales.month },
+    { label: $t('reports.all_time'), row: sales.all_time }
+  ] as card}
+    <div class="card stat">
+      <div class="label">{card.label}</div>
+      <div class="profit-label">{$t('reports.profit')}</div>
+      <div class="value profit" class:negative={card.row.profit_dirams < 0}>
+        {formatMoney(card.row.profit_dirams, lang)}
+        <span class="cur">{$t('common.currency_short')}</span>
+      </div>
+      <div class="breakdown">
+        <div><span class="bk-label">{$t('reports.sale')}</span> {formatMoney(card.row.sale_dirams, lang)}</div>
+        <div><span class="bk-label">{$t('reports.cog')}</span> {formatMoney(card.row.cog_dirams, lang)}</div>
+      </div>
+      <div class="sub">{card.row.invoice_count} {$t('reports.invoices')}</div>
     </div>
-    <div class="sub">{sales.today.invoice_count} {$t('reports.invoices')}</div>
-  </div>
-  <div class="card stat">
-    <div class="label">{$t('reports.last_7_days')}</div>
-    <div class="value">
-      {formatMoney(sales.week.total_dirams, lang)}
-      <span class="cur">{$t('common.currency_short')}</span>
-    </div>
-    <div class="sub">{sales.week.invoice_count} {$t('reports.invoices')}</div>
-  </div>
-  <div class="card stat">
-    <div class="label">{$t('reports.this_month')}</div>
-    <div class="value">
-      {formatMoney(sales.month.total_dirams, lang)}
-      <span class="cur">{$t('common.currency_short')}</span>
-    </div>
-    <div class="sub">{sales.month.invoice_count} {$t('reports.invoices')}</div>
-  </div>
-  <div class="card stat">
-    <div class="label">{$t('reports.all_time')}</div>
-    <div class="value">
-      {formatMoney(sales.all_time.total_dirams, lang)}
-      <span class="cur">{$t('common.currency_short')}</span>
-    </div>
-    <div class="sub">{sales.all_time.invoice_count} {$t('reports.invoices')}</div>
-  </div>
+  {/each}
 </div>
 
 <h2>{$t('reports.inventory_heading')}</h2>
@@ -68,13 +50,7 @@
       <span class="cur">{$t('common.currency_short')}</span>
     </div>
   </div>
-  <div class="card stat">
-    <div class="label">{$t('reports.sale_value')}</div>
-    <div class="value">
-      {formatMoney(inventory.sale_value_dirams, lang)}
-      <span class="cur">{$t('common.currency_short')}</span>
-    </div>
-  </div>
+  <div></div>
   <div class="card stat">
     <div class="label">{$t('reports.low_stock')}</div>
     <div class="value" class:warn={inventory.lowStockCount > 0}>{inventory.lowStockCount}</div>
@@ -92,20 +68,28 @@
   <table>
     <thead>
       <tr>
-        <th>{$t('parts.sku')}</th>
         <th>{$t('parts.name')}</th>
         <th class="num">{$t('reports.units_sold')}</th>
-        <th class="num">{$t('reports.revenue')}</th>
+        <th class="num">{$t('reports.sale')}</th>
+        <th class="num">{$t('reports.cog')}</th>
+        <th class="num profit-col">{$t('reports.profit')}</th>
       </tr>
     </thead>
     <tbody>
       {#each topParts as p}
         <tr>
-          <td><a href="/parts/{p.id}">{p.sku}</a></td>
-          <td>{localized(p, 'name', lang)}</td>
+          <td><a href="/parts/{p.id}">{localized(p, 'name', lang)}</a></td>
           <td class="num">{p.units_sold}</td>
           <td class="num">
-            {formatMoney(p.revenue_dirams, lang)}
+            {formatMoney(p.sale_dirams, lang)}
+            <span class="cur">{$t('common.currency_short')}</span>
+          </td>
+          <td class="num">
+            {formatMoney(p.cog_dirams, lang)}
+            <span class="cur">{$t('common.currency_short')}</span>
+          </td>
+          <td class="num profit-col" class:negative={p.profit_dirams < 0}>
+            {formatMoney(p.profit_dirams, lang)}
             <span class="cur">{$t('common.currency_short')}</span>
           </td>
         </tr>
@@ -123,17 +107,27 @@
       <tr>
         <th>{$t('reports.saved_at')}</th>
         <th class="num">{$t('reports.lines')}</th>
-        <th class="num">{$t('common.total')}</th>
+        <th class="num">{$t('reports.sale')}</th>
+        <th class="num">{$t('reports.cog')}</th>
+        <th class="num profit-col">{$t('reports.profit')}</th>
         <th></th>
       </tr>
     </thead>
     <tbody>
       {#each recentSales as s}
         <tr>
-          <td>{formatWhen(s.saved_at)}</td>
+          <td>{formatTs(s.saved_at)}</td>
           <td class="num">{s.line_count}</td>
           <td class="num">
-            {formatMoney(s.total_dirams, lang)}
+            {formatMoney(s.sale_dirams, lang)}
+            <span class="cur">{$t('common.currency_short')}</span>
+          </td>
+          <td class="num">
+            {formatMoney(s.cog_dirams, lang)}
+            <span class="cur">{$t('common.currency_short')}</span>
+          </td>
+          <td class="num profit-col" class:negative={s.profit_dirams < 0}>
+            {formatMoney(s.profit_dirams, lang)}
             <span class="cur">{$t('common.currency_short')}</span>
           </td>
           <td><a href="/invoices/{s.id}">{$t('reports.view')}</a></td>
@@ -146,7 +140,7 @@
 <style>
   .grid {
     display: grid;
-    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
     gap: 1rem;
     margin-bottom: 1.5rem;
   }
@@ -159,5 +153,49 @@
   }
   .stat .value.warn { color: #b8443f; }
   .stat .cur { font-size: 0.8rem; color: #6b7388; margin-left: 0.2rem; }
-  .stat .sub { color: #6b7388; font-size: 0.8rem; margin-top: 0.2rem; }
+  .stat .sub { color: #6b7388; font-size: 0.8rem; margin-top: 0.4rem; }
+
+  .profit-label {
+    color: #2f7d4f;
+    font-size: 0.7rem;
+    font-weight: 600;
+    letter-spacing: 0.05em;
+    text-transform: uppercase;
+    margin-top: 0.35rem;
+  }
+  .value.profit {
+    font-size: 2rem;
+    font-weight: 700;
+    color: #1f6b40;
+    line-height: 1.1;
+    margin-top: 0.1rem;
+  }
+  .value.profit.negative { color: #b8443f; }
+  .value.profit .cur { color: #1f6b40; }
+  .value.profit.negative .cur { color: #b8443f; }
+
+  .breakdown {
+    margin-top: 0.55rem;
+    color: #4a5060;
+    font-size: 0.85rem;
+    font-variant-numeric: tabular-nums;
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.1rem 0.9rem;
+  }
+  .breakdown .bk-label {
+    color: #6b7388;
+    font-size: 0.75rem;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    margin-right: 0.15rem;
+  }
+
+  th.profit-col, td.profit-col {
+    color: #1f6b40;
+    font-weight: 700;
+    background: #f1f8f3;
+  }
+  td.profit-col.negative { color: #b8443f; background: #fbf1f0; }
+  td.profit-col .cur { color: inherit; }
 </style>

src/routes/invoices/[id]/+page.svelte

@@ -1,5 +1,5 @@
 <script>
-  import { locale, t, localized, formatMoney } from '$lib/i18n/store.js';
+  import { locale, t, localized, formatMoney, formatTs } from '$lib/i18n/store.js';
 
   export let data;
   $: lang = $locale;
@@ -7,7 +7,7 @@
 
   function lineLabel(line) {
     if (line.affects_inventory === 0) return line.label;
-    return `${line.part_sku} — ${localized({ name_en: line.part_name_en, name_tg: line.part_name_tg }, 'name', lang)}`;
+    return localized({ name_en: line.part_name_en, name_tg: line.part_name_tg }, 'name', lang);
   }
 </script>
 
@@ -15,7 +15,7 @@
   <header class="head">
     <div>
       <h1>{$t('invoices.saved_title')} #{invoice.id}</h1>
-      <p class="muted">{invoice.saved_at}</p>
+      <p class="muted">{formatTs(invoice.saved_at)}</p>
     </div>
     <a href="/invoices/new" class="print-hide back">← {$t('invoices.new_another')}</a>
   </header>

src/routes/invoices/new/+page.svelte

@@ -19,7 +19,6 @@
     const q = partSearch.trim().toLowerCase();
     if (!q) return parts;
     return parts.filter((p) =>
-      (p.sku || '').toLowerCase().includes(q) ||
       (p.name_en || '').toLowerCase().includes(q) ||
       (p.name_tg || '').toLowerCase().includes(q) ||
       (p.barcode || '').toLowerCase().includes(q)
@@ -59,7 +58,7 @@
 
   function lineLabel(line) {
     if (line.affects_inventory === 0) return line.label;
-    return `${line.part_sku} — ${localized({ name_en: line.part_name_en, name_tg: line.part_name_tg }, 'name', lang)}`;
+    return localized({ name_en: line.part_name_en, name_tg: line.part_name_tg }, 'name', lang);
   }
 
   function confirmCancel(event) {
@@ -88,7 +87,7 @@
             <option value="">—</option>
             {#each visibleParts as p}
               <option value={String(p.id)}>
-                {p.sku} — {localized(p, 'name', lang)} ({$t('parts.quantity_on_hand')}: {p.quantity_on_hand})
+                {localized(p, 'name', lang)} ({$t('parts.quantity_on_hand')}: {p.quantity_on_hand})
               </option>
             {/each}
           </select>

src/routes/movements/new/+page.svelte

@@ -21,7 +21,6 @@
     const q = partSearch.trim().toLowerCase();
     if (!q) return parts;
     return parts.filter((p) =>
-      (p.sku || '').toLowerCase().includes(q) ||
       (p.name_en || '').toLowerCase().includes(q) ||
       (p.name_tg || '').toLowerCase().includes(q) ||
       (p.barcode || '').toLowerCase().includes(q)
@@ -105,7 +104,7 @@
       <option value="">—</option>
       {#each visibleParts as p}
         <option value={String(p.id)}>
-          {p.sku} — {localized(p, 'name', lang)} ({$t('parts.quantity_on_hand')}: {p.quantity_on_hand})
+          {localized(p, 'name', lang)} ({$t('parts.quantity_on_hand')}: {p.quantity_on_hand})
         </option>
       {/each}
     </select>

src/routes/parts/+page.server.js

@@ -2,7 +2,7 @@ import { listParts, categoriesWithParts } from '$lib/server/parts.js';
 
 export function load({ url }) {
   const q    = url.searchParams.get('q')    ?? '';
-  const sort = url.searchParams.get('sort') ?? 'sku';
+  const sort = url.searchParams.get('sort') ?? 'name_en';
   const dir  = url.searchParams.get('dir')  ?? 'asc';
   const cat  = url.searchParams.get('category') ?? '';
   const categoryIds = cat

src/routes/parts/+page.svelte

@@ -15,7 +15,7 @@
     const params = new URLSearchParams();
     if (qNext) params.set('q', qNext);
     if (catsNext.length) params.set('category', catsNext.join(','));
-    if (sortNext && sortNext !== 'sku') params.set('sort', sortNext);
+    if (sortNext && sortNext !== 'name_en') params.set('sort', sortNext);
     if (dirNext && dirNext !== 'asc') params.set('dir', dirNext);
     const target = '/parts' + (params.toString() ? '?' + params.toString() : '');
     goto(target, { replaceState: true, keepFocus: true, noScroll: true });
@@ -99,7 +99,6 @@
   <table>
     <thead>
       <tr>
-        <th><button class="th-btn" on:click={() => sortBy('sku')}>{$t('parts.sku')} {arrow('sku')}</button></th>
         <th><button class="th-btn" on:click={() => sortBy(lang === 'tg' ? 'name_tg' : 'name_en')}>{$t('parts.name')} {arrow(lang === 'tg' ? 'name_tg' : 'name_en')}</button></th>
         <th>{$t('parts.category')}</th>
         <th class="num"><button class="th-btn" on:click={() => sortBy('quantity_on_hand')}>{$t('parts.quantity_on_hand')} {arrow('quantity_on_hand')}</button></th>
@@ -110,9 +109,8 @@
     <tbody>
       {#each parts as p}
         <tr>
-          <td><a href="/parts/{p.id}">{p.sku}</a></td>
           <td>
-            {localized(p, 'name', lang)}
+            <a href="/parts/{p.id}">{localized(p, 'name', lang)}</a>
             {#if !hasTranslation(p, 'name', lang)}
               <em class="missing">{$t('common.missing_translation')}</em>
             {/if}

src/routes/parts/[id]/+page.server.js

@@ -1,5 +1,5 @@
 import { error, fail, redirect } from '@sveltejs/kit';
-import { getPart, getPartBySku, listCategories, updatePart } from '$lib/server/parts.js';
+import { deactivatePart, getPart, listCategories, updatePart } from '$lib/server/parts.js';
 import { recentMovementsForPart } from '$lib/server/movements.js';
 
 export function load({ params }) {
@@ -14,21 +14,23 @@ export function load({ params }) {
 }
 
 export const actions = {
-  default: async ({ request, params }) => {
+  update: async ({ request, params }) => {
     const id = Number(params.id);
     const form = await request.formData();
     const data = Object.fromEntries(form);
 
     const errors = {};
-    if (!data.sku || !data.sku.trim()) errors.sku = 'parts.errors.sku_required';
     if ((!data.name_en || !data.name_en.trim()) && (!data.name_tg || !data.name_tg.trim())) {
       errors.name = 'parts.errors.name_required';
     }
-    const existing = getPartBySku(data.sku.trim());
-    if (existing && existing.id !== id) errors.sku = 'parts.errors.sku_taken';
     if (Object.keys(errors).length) return fail(400, { errors, values: data });
 
     updatePart(id, data);
     throw redirect(303, `/parts/${id}`);
+  },
+
+  delete: async ({ params }) => {
+    deactivatePart(Number(params.id));
+    throw redirect(303, '/parts');
   }
 };

src/routes/parts/[id]/+page.svelte

@@ -1,11 +1,18 @@
 <script>
-  import { locale, t, localized, formatMoney } from '$lib/i18n/store.js';
+  import { enhance } from '$app/forms';
+  import { locale, t, localized, formatMoney, formatTs } from '$lib/i18n/store.js';
 
   export let data;
   export let form;
   $: lang = $locale;
   $: ({ part, categories, movements } = data);
 
+  function confirmDelete(event) {
+    const name = localized(part, 'name', lang) || String(part.id);
+    const message = $t('parts.delete_confirm').replace('{name}', name);
+    if (!confirm(message)) event.preventDefault();
+  }
+
   $: errors = form?.errors ?? {};
   $: values = form?.values ?? {};
 
@@ -17,7 +24,7 @@
 </script>
 
 <div class="page-head">
-  <h1>{$t('parts.edit')}: {part.sku}</h1>
+  <h1>{$t('parts.edit')}: {localized(part, 'name', lang) || part.id}</h1>
   <a href="/parts" class="muted">← {$t('common.back')}</a>
 </div>
 
@@ -27,13 +34,7 @@
 
 <div class="layout">
   <section>
-    <form class="stack" method="POST">
-      <label>
-        {$t('parts.sku')} *
-        <input name="sku" required value={values.sku ?? part.sku} />
-        {#if errors.sku}<span class="field-error">{$t(errors.sku)}</span>{/if}
-      </label>
-
+    <form class="stack" method="POST" action="?/update">
       <div class="row">
         <label>
           {$t('parts.name_en')}
@@ -83,27 +84,10 @@
         </label>
       </div>
 
-      <div class="row">
-        <label>
-          {$t('parts.location')}
-          <input name="location" value={values.location ?? part.location ?? ''} />
-        </label>
-        <label>
-          {$t('parts.barcode')}
-          <input name="barcode" value={values.barcode ?? part.barcode ?? ''} />
-        </label>
-      </div>
-
-      <div class="row">
-        <label>
-          {$t('parts.description_en')}
-          <textarea name="description_en">{values.description_en ?? part.description_en ?? ''}</textarea>
-        </label>
-        <label>
-          {$t('parts.description_tg')}
-          <textarea name="description_tg">{values.description_tg ?? part.description_tg ?? ''}</textarea>
-        </label>
-      </div>
+      <label>
+        {$t('parts.barcode')}
+        <input name="barcode" value={values.barcode ?? part.barcode ?? ''} />
+      </label>
 
       <label class="checkbox">
         <input type="checkbox" name="active" value="1"
@@ -116,6 +100,10 @@
         <a class="btn-link" href="/movements/new?part_id={part.id}">+ {$t('nav.new_movement')}</a>
       </div>
     </form>
+
+    <form method="POST" action="?/delete" class="delete-form" use:enhance on:submit={confirmDelete}>
+      <button type="submit" class="danger">{$t('common.delete')}</button>
+    </form>
   </section>
 
   <aside>
@@ -129,8 +117,8 @@
         {$t('parts.reorder_level')}: {part.reorder_level}
       </div>
       <hr />
-      <div class="muted small">{$t('common.created')}: {part.created_at}</div>
-      <div class="muted small">{$t('common.updated')}: {part.updated_at}</div>
+      <div class="muted small">{$t('common.created')}: {formatTs(part.created_at)}</div>
+      <div class="muted small">{$t('common.updated')}: {formatTs(part.updated_at)}</div>
     </div>
 
     <h2>{$t('parts.recent_movements')}</h2>
@@ -149,7 +137,7 @@
         <tbody>
           {#each movements as m}
             <tr>
-              <td>{m.created_at}</td>
+              <td>{formatTs(m.created_at)}</td>
               <td><span class="pill">{$t('movements.type_' + m.movement_type)}</span></td>
               <td class="num">{m.quantity > 0 ? '+' : ''}{m.quantity}</td>
               <td class="num">{m.unit_price != null ? formatMoney(m.unit_price, lang) : $t('common.none')}</td>
@@ -186,6 +174,11 @@
   .btn-link:hover { background: #00553e; color: #fff; }
   .checkbox { display: flex; align-items: center; gap: 0.4rem; }
   .field-error { color: #8a1f1b; font-size: 0.8rem; }
+  .delete-form {
+    margin-top: 1.25rem;
+    padding-top: 1rem;
+    border-top: 1px solid #eef0f5;
+  }
 
   .qty { font-size: 2rem; font-weight: 700; margin: 0.25rem 0; }
   .qty.low { color: #b8443f; }

src/routes/parts/new/+page.server.js

@@ -1,5 +1,5 @@
 import { fail, redirect } from '@sveltejs/kit';
-import { createPart, getPartBySku, listCategories } from '$lib/server/parts.js';
+import { createPart, listCategories } from '$lib/server/parts.js';
 import { recordMovement } from '$lib/server/movements.js';
 
 export function load() {
@@ -13,10 +13,6 @@ export const actions = {
     const errors = validate(data);
     if (errors) return fail(400, { errors, values: data });
 
-    if (getPartBySku(data.sku.trim())) {
-      return fail(400, { errors: { sku: 'parts.errors.sku_taken' }, values: data });
-    }
-
     // Save the part with quantity 0, then record an opening "in" movement
     // if the user supplied an initial quantity. This keeps quantity changes
     // funneled exclusively through stock_movements.
@@ -38,7 +34,6 @@ export const actions = {
 
 function validate(d) {
   const errors = {};
-  if (!d.sku || !d.sku.trim()) errors.sku = 'parts.errors.sku_required';
   if ((!d.name_en || !d.name_en.trim()) && (!d.name_tg || !d.name_tg.trim())) {
     errors.name = 'parts.errors.name_required';
   }

src/routes/parts/new/+page.svelte

@@ -17,12 +17,6 @@
 {/if}
 
 <form class="stack" method="POST">
-  <label>
-    {$t('parts.sku')} *
-    <input name="sku" required value={values.sku ?? ''} />
-    {#if errors.sku}<span class="field-error">{$t(errors.sku)}</span>{/if}
-  </label>
-
   <div class="row">
     <label>
       {$t('parts.name_en')}
@@ -60,7 +54,7 @@
   <div class="row">
     <label>
       {$t('parts.unit')}
-      <input name="unit" value={values.unit ?? 'pcs'} />
+      <input name="unit" value={values.unit ?? 'liter'} />
     </label>
     <label>
       {$t('parts.reorder_level')}
@@ -74,24 +68,8 @@
       <input name="quantity_on_hand" type="number" min="0" step="1" value={values.quantity_on_hand ?? 0} />
     </label>
     <label>
-      {$t('parts.location')}
-      <input name="location" value={values.location ?? ''} />
-    </label>
-  </div>
-
-  <label>
-    {$t('parts.barcode')}
-    <input name="barcode" value={values.barcode ?? ''} />
-  </label>
-
-  <div class="row">
-    <label>
-      {$t('parts.description_en')}
-      <textarea name="description_en">{values.description_en ?? ''}</textarea>
-    </label>
-    <label>
-      {$t('parts.description_tg')}
-      <textarea name="description_tg">{values.description_tg ?? ''}</textarea>
+      {$t('parts.barcode')}
+      <input name="barcode" value={values.barcode ?? ''} />
     </label>
   </div>