import {
  sqliteTable,
  text,
  integer,
  real,
  primaryKey,
  index,
  uniqueIndex,
} from "drizzle-orm/sqlite-core";
import { users } from "./auth";

// ============ CardType ENUM ============
export const CardTypes = [
  "text",
  "image",
  "image-text",
  "portfolio",
  "project",
] as const;
export type CardType = (typeof CardTypes)[number];

// ============ Category（分类表）============
export const categories = sqliteTable(
  "categories",
  {
    id: text("id").primaryKey(), // UUID
    name: text("name", { length: 100 }).notNull(),
    slug: text("slug", { length: 100 }).notNull(),
    image: text("image", { length: 500 }),
    parentId: text("parent_id"), // 自引用 FK，NULL=顶级
    sortOrder: integer("sort_order").default(0).notNull(),
    count: integer("count").default(0).notNull(),
    createdAt: integer("created_at", { mode: "timestamp_ms" })
      .defaultNow()
      .notNull(),
    updatedAt: integer("updated_at", { mode: "timestamp_ms" })
      .defaultNow()
      .$onUpdate(() => new Date())
      .notNull(),
  },
  (table) => [
    uniqueIndex("idx_category_slug").on(table.slug),
    index("idx_category_parent").on(table.parentId),
  ],
);

// ============ Card（卡片表）============
export const cards = sqliteTable(
  "cards",
  {
    id: integer("id").primaryKey({ autoIncrement: true }),
    type: text("type", { enum: CardTypes }).notNull(),
    title: text("title", { length: 255 }).notNull(),
    description: text("description"),
    aspectRatio: real("aspect_ratio"),
    categoryId: text("category_id").references(() => categories.id),
    createdAt: integer("created_at", { mode: "timestamp_ms" })
      .defaultNow()
      .notNull(),
    updatedAt: integer("updated_at", { mode: "timestamp_ms" })
      .defaultNow()
      .$onUpdate(() => new Date())
      .notNull(),
  },
  (table) => [
    index("idx_card_category").on(table.categoryId),
    index("idx_card_type").on(table.type),
    index("idx_card_created").on(table.createdAt),
  ],
);

// ============ CardImage（卡片图片表）============
export const cardImages = sqliteTable(
  "card_images",
  {
    id: integer("id").primaryKey({ autoIncrement: true }),
    cardId: integer("card_id")
      .notNull()
      .references(() => cards.id),
    url: text("url", { length: 500 }).notNull(),
    sortOrder: integer("sort_order").default(0).notNull(),
  },
  (table) => [index("idx_card_image_card").on(table.cardId)],
);

// ============ Tag（标签表）============
export const tags = sqliteTable(
  "tags",
  {
    id: integer("id").primaryKey({ autoIncrement: true }),
    name: text("name", { length: 50 }).notNull(),
    slug: text("slug", { length: 50 }).notNull(),
  },
  (table) => [uniqueIndex("idx_tag_slug").on(table.slug)],
);

// ============ CardTag（卡片-标签关联表）============
export const cardTags = sqliteTable(
  "card_tags",
  {
    cardId: integer("card_id")
      .notNull()
      .references(() => cards.id),
    tagId: integer("tag_id")
      .notNull()
      .references(() => tags.id),
  },
  (table) => [
    primaryKey({ name: "card_tag_pk", columns: [table.cardId, table.tagId] }),
    index("idx_card_tag_card").on(table.cardId),
    index("idx_card_tag_tag").on(table.tagId),
  ],
);

// ============ Favorite（收藏表）============
export const favorites = sqliteTable(
  "favorites",
  {
    userId: integer("user_id")
      .notNull()
      .references(() => users.id, { onDelete: "cascade" }),
    cardId: integer("card_id")
      .notNull()
      .references(() => cards.id, { onDelete: "cascade" }),
    createdAt: integer("created_at", { mode: "timestamp_ms" })
      .defaultNow()
      .notNull(),
  },
  (table) => [
    primaryKey({ name: "favorite_pk", columns: [table.userId, table.cardId] }),
    index("idx_favorite_user").on(table.userId),
    index("idx_favorite_card").on(table.cardId),
  ],
);

// ============ Tool（工具项表）============
export const tools = sqliteTable("tools", {
  id: text("id").primaryKey(), // UUID
  name: text("name", { length: 50 }).notNull(),
  slug: text("slug", { length: 50 }).notNull(),
  icon: text("icon", { length: 100 }),
  sortOrder: integer("sort_order").default(0).notNull(),
});