// Sample inventory data
window.SAMPLE_DATA = (function() {
  const TODAY = "2026-04-25";
  const daysAgo = (n) => {
    const d = new Date(TODAY); d.setDate(d.getDate() - n);
    return d.toISOString().slice(0, 10);
  };

  // Shops are objects now
  const SHOPS = [
    { id: "shp-01", name: "Greenleaf Co-op",     location: "Capitol Hill" },
    { id: "shp-02", name: "Verdant Apothecary",  location: "Ballard" },
    { id: "shp-03", name: "The Field House",     location: "Fremont" },
    { id: "shp-04", name: "Northstar Dispensary",location: "Roosevelt" },
    { id: "shp-05", name: "Wildwood Provisions", location: "West Seattle" }
  ];

  // Brands are objects too
  const BRANDS = [
    { id: "brd-01", name: "Foxglove Farms" },
    { id: "brd-02", name: "Slow Burn" },
    { id: "brd-03", name: "Heirloom Botanicals" },
    { id: "brd-04", name: "Terra Vera" },
    { id: "brd-05", name: "North Field" },
    { id: "brd-06", name: "Cinder & Sage" },
    { id: "brd-07", name: "Old Forest" },
    { id: "brd-08", name: "Marigold Ext." }
  ];

  // Type config — kind + audit cadence
  // bulk: track weight (g) — audit re-weighs (or estimates for concentrate)
  // discrete: track count (units) — audit confirms presence by SKU/asset
  const TYPES = [
    { id: "Flower",      kind: "bulk",     auditMode: "weigh",    cadenceDays: 14, unit: "g",   weighable: true },
    { id: "Concentrate", kind: "bulk",     auditMode: "estimate", cadenceDays: 21, unit: "g",   weighable: true },
    { id: "Tincture",    kind: "bulk",     auditMode: "estimate", cadenceDays: 30, unit: "ml",  weighable: false },
    { id: "Pre-roll",    kind: "discrete", auditMode: "presence", cadenceDays: 30, unit: "ct",  weighable: false },
    { id: "Edible",      kind: "discrete", auditMode: "presence", cadenceDays: 60, unit: "ct",  weighable: false },
    { id: "Vaporizer",   kind: "discrete", auditMode: "presence", cadenceDays: 30, unit: "ct",  weighable: false }
  ];

  const BINS = [
    { id: "bin-01", name: "Top Drawer",     location: "Bedroom",       capacity: 14 },
    { id: "bin-02", name: "Apothecary Box", location: "Office shelf",  capacity: 10 },
    { id: "bin-03", name: "The Safe",       location: "Closet",        capacity: 8  },
    { id: "bin-04", name: "Travel Tin",     location: "Backpack",      capacity: 4  },
    { id: "bin-05", name: "Cold Storage",   location: "Fridge — back", capacity: 6  }
  ];

  let n = 1;
  const mk = (o) => {
    const id = "prd-" + String(n).padStart(4, "0");
    n++;
    const sku = o.sku || ("SKU-" + Math.random().toString(36).slice(2, 8).toUpperCase());
    return {
      id,
      sku,
      assetTag: null,
      name: "",
      brandId: null,
      shopId: null,
      type: "Flower",
      kind: "bulk",                 // "bulk" or "discrete"
      // Bulk fields
      weight: 0,                    // total at purchase (g/ml)
      lastAuditWeight: null,        // last measured weight
      // Discrete fields
      countOriginal: 0,             // units at purchase
      countLastAudit: null,         // units confirmed at last audit
      unitWeight: 0,                // bulk-equivalent grams per unit (for grams stats)
      // Pricing
      price: 0,
      thc: 0,
      cbd: 0,
      totalCannabinoids: 0,
      purchaseDate: TODAY,
      binId: "bin-01",
      // Lifecycle
      status: "active",             // "active" | "consumed" | "gone"
      consumedDate: null,
      goneDate: null,
      rating: null,
      notes: null,
      // Audits — newest last
      audits: [],
      ...o
    };
  };

  const products = [];

  // ─── BULK: FLOWER ────────────────────────────────────────────────
  products.push(mk({
    name: "Garden Ghost", brandId: "brd-01", shopId: "shp-01",
    type: "Flower", kind: "bulk",
    weight: 3.5, lastAuditWeight: 2.4,
    price: 48, thc: 24.6, cbd: 0.3, totalCannabinoids: 28.4,
    purchaseDate: daysAgo(17), binId: "bin-01",
    audits: [
      { date: daysAgo(10), mode: "weigh", value: 3.0, prev: 3.5 },
      { date: daysAgo(3),  mode: "weigh", value: 2.4, prev: 3.0 }
    ]
  }));
  products.push(mk({
    name: "Honeydew Pine", brandId: "brd-02", shopId: "shp-02",
    type: "Flower", kind: "bulk",
    weight: 7, lastAuditWeight: 5.6,
    price: 85, thc: 21.0, cbd: 0.5, totalCannabinoids: 25.1,
    purchaseDate: daysAgo(11), binId: "bin-01",
    audits: [
      { date: daysAgo(2),  mode: "weigh", value: 5.6, prev: 7.0 }
    ]
  }));
  products.push(mk({
    name: "Late Pear", brandId: "brd-01", shopId: "shp-01",
    type: "Flower", kind: "bulk",
    weight: 3.5, lastAuditWeight: 3.5,
    price: 50, thc: 25.2, cbd: 0.2, totalCannabinoids: 28.9,
    purchaseDate: daysAgo(6), binId: "bin-05"
    // recently bought, no audit yet
  }));
  products.push(mk({
    name: "Copper Fennel", brandId: "brd-02", shopId: "shp-02",
    type: "Flower", kind: "bulk",
    weight: 3.5, lastAuditWeight: 0.5,
    price: 42, thc: 20.4, cbd: 0.5, totalCannabinoids: 24.0,
    purchaseDate: daysAgo(26), binId: "bin-01",
    audits: [
      { date: daysAgo(12), mode: "weigh", value: 1.6, prev: 3.5 },
      { date: daysAgo(2),  mode: "weigh", value: 0.5, prev: 1.6 }
    ]
  }));
  // Overdue audit — Flower past 14d cadence
  products.push(mk({
    name: "Slate Cherry", brandId: "brd-06", shopId: "shp-04",
    type: "Flower", kind: "bulk",
    weight: 3.5, lastAuditWeight: 3.5,
    price: 46, thc: 22.8, cbd: 0.4, totalCannabinoids: 26.5,
    purchaseDate: daysAgo(22), binId: "bin-01"
    // No audit since purchase, 22d > 14d cadence → overdue
  }));

  // ─── BULK: CONCENTRATE ──────────────────────────────────────────
  products.push(mk({
    name: "Indigo Cellar Live Rosin", brandId: "brd-03", shopId: "shp-03",
    type: "Concentrate", kind: "bulk",
    weight: 1, lastAuditWeight: 0.6,
    price: 65, thc: 78.4, cbd: 0.2, totalCannabinoids: 84.0,
    purchaseDate: daysAgo(28), binId: "bin-03",
    assetTag: "AT-0042",
    audits: [
      { date: daysAgo(15), mode: "estimate", value: 0.8, prev: 1.0 },
      { date: daysAgo(2),  mode: "estimate", value: 0.6, prev: 0.8 }
    ]
  }));
  products.push(mk({
    name: "Slate Apricot Hash", brandId: "brd-04", shopId: "shp-04",
    type: "Concentrate", kind: "bulk",
    weight: 2, lastAuditWeight: 1.4,
    price: 80, thc: 62.0, cbd: 1.1, totalCannabinoids: 70.5,
    purchaseDate: daysAgo(23), binId: "bin-03",
    audits: [
      { date: daysAgo(8),  mode: "estimate", value: 1.4, prev: 2.0 }
    ]
  }));
  products.push(mk({
    name: "Birchwater Live Resin", brandId: "brd-03", shopId: "shp-04",
    type: "Concentrate", kind: "bulk",
    weight: 1, lastAuditWeight: 1.0,
    price: 70, thc: 76.0, cbd: 0.3, totalCannabinoids: 82.1,
    purchaseDate: daysAgo(4), binId: "bin-03"
  }));

  // ─── BULK: TINCTURE ─────────────────────────────────────────────
  products.push(mk({
    name: "Nightjar Tincture 30ml", brandId: "brd-08", shopId: "shp-02",
    type: "Tincture", kind: "bulk",
    weight: 30, lastAuditWeight: 22,
    price: 60, thc: 0.5, cbd: 18.0, totalCannabinoids: 19.2,
    purchaseDate: daysAgo(62), binId: "bin-02",
    audits: [
      { date: daysAgo(31), mode: "estimate", value: 26, prev: 30 },
      { date: daysAgo(5),  mode: "estimate", value: 22, prev: 26 }
    ]
  }));

  // ─── DISCRETE: PRE-ROLLS ───────────────────────────────────────
  products.push(mk({
    name: "Mossback Pre-rolls", brandId: "brd-07", shopId: "shp-03",
    type: "Pre-roll", kind: "discrete",
    countOriginal: 5, countLastAudit: 3, unitWeight: 0.7,
    price: 38, thc: 19.8, cbd: 0.4, totalCannabinoids: 23.0,
    purchaseDate: daysAgo(9), binId: "bin-04",
    audits: [
      { date: daysAgo(2), mode: "presence", value: 3, prev: 5, confirmedBy: "SKU" }
    ]
  }));
  products.push(mk({
    name: "Mossback Pre-rolls", brandId: "brd-07", shopId: "shp-03",
    type: "Pre-roll", kind: "discrete",
    countOriginal: 5, countLastAudit: 5, unitWeight: 0.7,
    price: 38, thc: 19.8, cbd: 0.4, totalCannabinoids: 23.0,
    purchaseDate: daysAgo(3), binId: "bin-04"
  }));
  products.push(mk({
    name: "Quiet Meadow Singles", brandId: "brd-05", shopId: "shp-05",
    type: "Pre-roll", kind: "discrete",
    countOriginal: 3, countLastAudit: 1, unitWeight: 1.0,
    price: 24, thc: 22.0, cbd: 0.3, totalCannabinoids: 25.0,
    purchaseDate: daysAgo(34), binId: "bin-04",
    audits: [
      { date: daysAgo(20), mode: "presence", value: 2, prev: 3, confirmedBy: "SKU" },
      { date: daysAgo(2),  mode: "presence", value: 1, prev: 2, confirmedBy: "SKU" }
    ]
  }));

  // ─── DISCRETE: EDIBLES ─────────────────────────────────────────
  products.push(mk({
    name: "Ember Lily Gummies (10 ct)", brandId: "brd-06", shopId: "shp-01",
    type: "Edible", kind: "discrete",
    countOriginal: 10, countLastAudit: 6, unitWeight: 0,
    price: 22, thc: 5.0, cbd: 1.0, totalCannabinoids: 6.4,
    purchaseDate: daysAgo(20), binId: "bin-02",
    audits: [
      { date: daysAgo(5), mode: "presence", value: 6, prev: 10, confirmedBy: "SKU" }
    ]
  }));
  products.push(mk({
    name: "Marigold Mints (20 ct)", brandId: "brd-08", shopId: "shp-02",
    type: "Edible", kind: "discrete",
    countOriginal: 20, countLastAudit: 14, unitWeight: 0,
    price: 28, thc: 2.5, cbd: 0, totalCannabinoids: 3.0,
    purchaseDate: daysAgo(48), binId: "bin-02",
    audits: [
      { date: daysAgo(7), mode: "presence", value: 14, prev: 20, confirmedBy: "SKU" }
    ]
  }));

  // ─── DISCRETE: VAPORIZER ───────────────────────────────────────
  products.push(mk({
    name: "Quiet Meadow Disposable", brandId: "brd-05", shopId: "shp-05",
    type: "Vaporizer", kind: "discrete",
    countOriginal: 1, countLastAudit: 1, unitWeight: 1.0,
    price: 55, thc: 84.0, cbd: 0.1, totalCannabinoids: 88.2,
    purchaseDate: daysAgo(14), binId: "bin-04",
    audits: [
      { date: daysAgo(1), mode: "presence", value: 1, prev: 1, confirmedBy: "SKU" }
    ]
  }));

  // ─── CONSUMED (used up — counts as consumption) ─────────────────
  products.push(mk({
    name: "Oolong 19", brandId: "brd-04", shopId: "shp-01",
    type: "Flower", kind: "bulk",
    weight: 3.5, lastAuditWeight: 0,
    price: 46, thc: 23.0, cbd: 0.4, totalCannabinoids: 27.0,
    purchaseDate: daysAgo(66), binId: null,
    status: "consumed", consumedDate: daysAgo(31),
    rating: 4, notes: "Smooth, citrusy. Daytime favorite."
  }));
  products.push(mk({
    name: "Stonefruit OG", brandId: "brd-07", shopId: "shp-03",
    type: "Flower", kind: "bulk",
    weight: 7, lastAuditWeight: 0,
    price: 78, thc: 22.5, cbd: 0.6, totalCannabinoids: 26.4,
    purchaseDate: daysAgo(103), binId: null,
    status: "consumed", consumedDate: daysAgo(56),
    rating: 5, notes: "Best of the season. Rebuy."
  }));
  products.push(mk({
    name: "Lavender Coast", brandId: "brd-01", shopId: "shp-05",
    type: "Flower", kind: "bulk",
    weight: 3.5, lastAuditWeight: 0,
    price: 44, thc: 19.0, cbd: 0.8, totalCannabinoids: 22.2,
    purchaseDate: daysAgo(80), binId: null,
    status: "consumed", consumedDate: daysAgo(47),
    rating: 3, notes: "Mellow but underwhelming."
  }));
  products.push(mk({
    name: "Violet Tea", brandId: "brd-06", shopId: "shp-04",
    type: "Flower", kind: "bulk",
    weight: 3.5, lastAuditWeight: 0,
    price: 50, thc: 24.1, cbd: 0.3, totalCannabinoids: 28.0,
    purchaseDate: daysAgo(55), binId: null,
    status: "consumed", consumedDate: daysAgo(21),
    rating: 4, notes: "Floral nose, nice evenings."
  }));

  // ─── GONE (lost / damaged — counts as $ spent, NOT consumption) ─
  products.push(mk({
    name: "Quiet Meadow Singles", brandId: "brd-05", shopId: "shp-05",
    type: "Pre-roll", kind: "discrete",
    countOriginal: 3, countLastAudit: 0, unitWeight: 1.0,
    price: 24, thc: 22.0, cbd: 0.3, totalCannabinoids: 25.0,
    purchaseDate: daysAgo(72), binId: null,
    status: "gone", goneDate: daysAgo(40),
    notes: "Pack went through the wash. Lesson learned.",
    audits: [
      { date: daysAgo(40), mode: "presence", value: 0, prev: 3, confirmedBy: "lost" }
    ]
  }));
  products.push(mk({
    name: "Ember Lily Gummies (10 ct)", brandId: "brd-06", shopId: "shp-01",
    type: "Edible", kind: "discrete",
    countOriginal: 10, countLastAudit: 4, unitWeight: 0,
    price: 22, thc: 5.0, cbd: 1.0, totalCannabinoids: 6.4,
    purchaseDate: daysAgo(95), binId: null,
    status: "gone", goneDate: daysAgo(15),
    notes: "Expired. Tossed the rest."
  }));

  return {
    products,
    bins: BINS,
    shops: SHOPS,
    brands: BRANDS,
    types: TYPES,
    today: TODAY
  };
})();

// Helpers — exported so screens can use consistent logic
window.DATA_HELPERS = {
  shopName: (data, id) => data.shops.find(s => s.id === id)?.name || "—",
  brandName: (data, id) => data.brands.find(b => b.id === id)?.name || "—",
  typeConfig: (data, id) => data.types.find(t => t.id === id) || data.types[0],

  // Days since a given ISO date string
  daysSince: (iso, today = "2026-04-25") => {
    if (!iso) return Infinity;
    return Math.floor((new Date(today) - new Date(iso)) / 86400000);
  },

  // Last audit record (newest)
  lastAudit: (p) => p.audits && p.audits.length ? p.audits[p.audits.length - 1] : null,

  // Days since last audit (or since purchase if none)
  daysSinceCheck: (p, today = "2026-04-25") => {
    const last = p.audits && p.audits.length ? p.audits[p.audits.length - 1].date : p.purchaseDate;
    return Math.floor((new Date(today) - new Date(last)) / 86400000);
  },

  // Is audit overdue based on per-type cadence
  auditOverdue: (data, p, today = "2026-04-25") => {
    if (p.status !== "active") return false;
    const cfg = data.types.find(t => t.id === p.type);
    if (!cfg) return false;
    return window.DATA_HELPERS.daysSinceCheck(p, today) >= cfg.cadenceDays;
  },

  // Estimated remaining (bulk: decay from last audit; discrete: countLastAudit)
  estimatedRemaining: (p, today = "2026-04-25") => {
    if (p.status !== "active") return 0;
    if (p.kind === "discrete") {
      return p.countLastAudit != null ? p.countLastAudit : p.countOriginal;
    }
    // Bulk: linear decay between last audit and average lifespan estimate
    const last = window.DATA_HELPERS.lastAudit(p);
    const baseDate = last ? last.date : p.purchaseDate;
    const baseValue = last ? last.value : p.weight;
    const daysSinceBase = Math.max(0, Math.floor((new Date(today) - new Date(baseDate)) / 86400000));
    // Decay rate: assume original weight is consumed over (purchase → expected lifespan ~ 35d for flower, 40 concentrate, 90 tincture)
    const expectedLifespan = p.type === "Flower" ? 35 : p.type === "Concentrate" ? 40 : 90;
    const dailyBurn = p.weight / expectedLifespan;
    const est = Math.max(0, baseValue - dailyBurn * daysSinceBase);
    return est;
  },

  // Original-percent remaining (for low-stock on bulk)
  pctRemaining: (p, today = "2026-04-25") => {
    if (p.kind === "discrete") {
      const cur = p.countLastAudit != null ? p.countLastAudit : p.countOriginal;
      return p.countOriginal > 0 ? cur / p.countOriginal : 0;
    }
    const est = window.DATA_HELPERS.estimatedRemaining(p, today);
    return p.weight > 0 ? est / p.weight : 0;
  }
};