/**
 * Fixture data for the mock Medusa Store API.
 *
 * Shapes mirror what `@medusajs/js-sdk` expects from a real Medusa v2 store
 * so the storefront can be developed and demoed without a running backend.
 */

const REGION = {
  id: "reg_01",
  name: "United States",
  currency_code: "usd",
  countries: [
    {
      iso_2: "us",
      iso_3: "usa",
      display_name: "United States",
      name: "united states",
      num_code: 840,
      region_id: "reg_01",
    },
  ],
}

const APPAREL_IMG = "/apparel_collection.png"
const BAGS_IMG = "/bags_collection.png"

// --- Categories -------------------------------------------------------------
// Declared flat, then linked into a parent/child tree below.
const CATEGORY_DEFS = [
  {
    id: "cat_ready_to_wear",
    name: "Ready-to-Wear",
    handle: "ready-to-wear",
    description: "Tailoring, knitwear and everyday pieces.",
    parent_id: null,
  },
  {
    id: "cat_dresses",
    name: "Dresses",
    handle: "dresses",
    description: "Day and evening dresses.",
    parent_id: "cat_ready_to_wear",
  },
  {
    id: "cat_knitwear",
    name: "Knitwear",
    handle: "knitwear",
    description: "Cashmere, wool and cotton knits.",
    parent_id: "cat_ready_to_wear",
  },
  {
    id: "cat_outerwear",
    name: "Outerwear",
    handle: "outerwear",
    description: "Coats, jackets and tailoring.",
    parent_id: "cat_ready_to_wear",
  },
  {
    id: "cat_bags",
    name: "Bags",
    handle: "bags",
    description: "Bags and leather goods.",
    parent_id: null,
  },
  {
    id: "cat_totes",
    name: "Totes",
    handle: "totes",
    description: "Structured and soft totes.",
    parent_id: "cat_bags",
  },
  {
    id: "cat_shoulder_bags",
    name: "Shoulder Bags",
    handle: "shoulder-bags",
    description: "Shoulder and crossbody bags.",
    parent_id: "cat_bags",
  },
  {
    id: "cat_mini_bags",
    name: "Mini Bags",
    handle: "mini-bags",
    description: "Compact evening and day bags.",
    parent_id: "cat_bags",
  },
  {
    id: "cat_accessories",
    name: "Accessories",
    handle: "accessories",
    description: "Small leather goods and finishing pieces.",
    parent_id: null,
  },
]

const CATEGORIES = CATEGORY_DEFS.map((def) => ({
  id: def.id,
  name: def.name,
  handle: def.handle,
  description: def.description,
  category_children: [],
  parent_category: null,
}))

const CATEGORY_BY_ID = new Map(CATEGORIES.map((c) => [c.id, c]))

CATEGORY_DEFS.forEach((def) => {
  if (!def.parent_id) {
    return
  }

  const child = CATEGORY_BY_ID.get(def.id)
  const parent = CATEGORY_BY_ID.get(def.parent_id)

  // Parent references are trimmed to avoid a circular structure that
  // JSON.stringify cannot serialise.
  child.parent_category = {
    id: parent.id,
    name: parent.name,
    handle: parent.handle,
    parent_category: null,
  }
  parent.category_children.push({
    id: child.id,
    name: child.name,
    handle: child.handle,
  })
})

// --- Collections ------------------------------------------------------------
const COLLECTIONS = [
  { id: "col_summer_edit", title: "The Summer Edit", handle: "summer-edit" },
  { id: "col_signatures", title: "Signatures", handle: "signatures" },
  { id: "col_leather_goods", title: "Leather Goods", handle: "leather-goods" },
]

// --- Products ---------------------------------------------------------------
const SIZES = ["S", "M", "L"]

const PRODUCT_OPTIONS = (colors) => [
  {
    id: "opt_size",
    title: "Size",
    values: SIZES.map((value) => ({ value })),
  },
  {
    id: "opt_color",
    title: "Color",
    values: colors.map((value) => ({ value })),
  },
]

function makeVariants(id, basePrice, colors) {
  const variants = []

  SIZES.forEach((size) => {
    colors.forEach((color) => {
      variants.push({
        id: `variant_${id}_${size}_${color}`.toLowerCase().replace(/\s+/g, "-"),
        title: `${size} / ${color}`,
        sku: `${id.toUpperCase()}-${size}-${color.slice(0, 3).toUpperCase()}`,
        manage_inventory: true,
        allow_backorder: false,
        inventory_quantity: 10,
        options: [
          { option_id: "opt_size", value: size },
          { option_id: "opt_color", value: color },
        ],
        calculated_price: {
          calculated_amount: basePrice,
          original_amount: basePrice,
          currency_code: REGION.currency_code,
          calculated_price: { price_list_type: "default" },
        },
        images: [],
      })
    })
  })

  return variants
}

function makeProduct({
  id,
  title,
  handle,
  description,
  thumbnail,
  price,
  categoryId,
  collectionId,
  material,
  colors,
}) {
  const category = CATEGORY_BY_ID.get(categoryId)

  return {
    id,
    title,
    handle,
    description,
    thumbnail,
    material,
    status: "published",
    created_at: "2026-01-01T00:00:00.000Z",
    updated_at: "2026-01-01T00:00:00.000Z",
    images: [
      { id: `img_${id}_1`, url: thumbnail },
      { id: `img_${id}_2`, url: thumbnail },
    ],
    options: PRODUCT_OPTIONS(colors),
    variants: makeVariants(id, price, colors),
    categories: category
      ? [{ id: category.id, name: category.name, handle: category.handle }]
      : [],
    collection_id: collectionId,
    collection: COLLECTIONS.find((c) => c.id === collectionId) ?? null,
    tags: [],
    metadata: {},
  }
}

const PRODUCTS = [
  makeProduct({
    id: "prod_1",
    title: "Wool Tailored Blazer",
    handle: "wool-tailored-blazer",
    description: "Structured wool blazer with a tailored silhouette.",
    thumbnail: APPAREL_IMG,
    price: 1890,
    categoryId: "cat_outerwear",
    collectionId: "col_signatures",
    material: "Wool",
    colors: ["Black", "Camel"],
  }),
  makeProduct({
    id: "prod_2",
    title: "Silk Midi Dress",
    handle: "silk-midi-dress",
    description: "Fluid silk dress with a modern midi length.",
    thumbnail: APPAREL_IMG,
    price: 1290,
    categoryId: "cat_dresses",
    collectionId: "col_summer_edit",
    material: "Silk",
    colors: ["Ivory", "Black"],
  }),
  makeProduct({
    id: "prod_3",
    title: "Cashmere Knit Sweater",
    handle: "cashmere-knit-sweater",
    description: "Soft cashmere knit in a relaxed fit.",
    thumbnail: APPAREL_IMG,
    price: 980,
    categoryId: "cat_knitwear",
    collectionId: "col_signatures",
    material: "Cashmere",
    colors: ["Grey", "Camel"],
  }),
  makeProduct({
    id: "prod_4",
    title: "Quilted Leather Shoulder Bag",
    handle: "quilted-leather-shoulder-bag",
    description: "Quilted leather shoulder bag with a chain strap.",
    thumbnail: BAGS_IMG,
    price: 2590,
    categoryId: "cat_shoulder_bags",
    collectionId: "col_leather_goods",
    material: "Leather",
    colors: ["Black", "Cognac"],
  }),
  makeProduct({
    id: "prod_5",
    title: "Leather Tote Bag",
    handle: "leather-tote-bag",
    description: "Spacious leather tote for everyday carry.",
    thumbnail: BAGS_IMG,
    price: 2190,
    categoryId: "cat_totes",
    collectionId: "col_leather_goods",
    material: "Leather",
    colors: ["Cognac", "Ivory"],
  }),
  makeProduct({
    id: "prod_6",
    title: "Mini Crossbody Bag",
    handle: "mini-crossbody-bag",
    description: "Compact crossbody bag in smooth leather.",
    thumbnail: BAGS_IMG,
    price: 1490,
    categoryId: "cat_mini_bags",
    collectionId: "col_leather_goods",
    material: "Leather",
    colors: ["Black", "Ivory"],
  }),
  makeProduct({
    id: "prod_7",
    title: "Raffia Summer Tote",
    handle: "raffia-summer-tote",
    description: "Hand-woven raffia tote with leather handles.",
    thumbnail: BAGS_IMG,
    price: 890,
    categoryId: "cat_totes",
    collectionId: "col_summer_edit",
    material: "Raffia",
    colors: ["Natural"],
  }),
  makeProduct({
    id: "prod_8",
    title: "Leather Card Holder",
    handle: "leather-card-holder",
    description: "Slim card holder in grained leather.",
    thumbnail: BAGS_IMG,
    price: 290,
    categoryId: "cat_accessories",
    collectionId: "col_leather_goods",
    material: "Leather",
    colors: ["Black", "Cognac"],
  }),
  makeProduct({
    id: "prod_9",
    title: "Linen Shirt Dress",
    handle: "linen-shirt-dress",
    description: "Relaxed linen shirt dress for warm days.",
    thumbnail: APPAREL_IMG,
    price: 740,
    categoryId: "cat_dresses",
    collectionId: "col_summer_edit",
    material: "Linen",
    colors: ["Ivory", "Sky"],
  }),
]

module.exports = { REGION, CATEGORIES, COLLECTIONS, PRODUCTS }