import { integer, sqliteTable, text, real } from "drizzle-orm/sqlite-core";
import { sql } from "drizzle-orm";

// ─── 分类表 ───────────────────────────────────────────
export const categories = sqliteTable("categories", {
  id: integer().primaryKey({ autoIncrement: true }),
  name: text().notNull(),
  icon: text().notNull().default("📁"),
  color: text().default("#6B7280"),
  parentId: integer("parent_id").references(() => categories.id, { onDelete: "set null" }),
  sortOrder: integer("sort_order").notNull().default(0),
  createdAt: integer("created_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .notNull(),
  updatedAt: integer("updated_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .$onUpdate(() => new Date())
    .notNull(),
});

// ─── 标签表 ───────────────────────────────────────────
export const tags = sqliteTable("tags", {
  id: integer().primaryKey({ autoIncrement: true }),
  name: text().notNull().unique(),
  color: text().default("#6B7280"),
  createdAt: integer("created_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .notNull(),
});

// ─── 收藏主表 ─────────────────────────────────────────
export const items = sqliteTable("items", {
  id: integer().primaryKey({ autoIncrement: true }),
  userId: integer("user_id").notNull(),
  type: text({ enum: ["web", "text", "image", "file", "video"] }).notNull(),
  title: text().notNull(),
  description: text(),
  content: text(),           // 完整正文（FTS 用）
  url: text(),               // 原始链接
  coverUrl: text("cover_url"),
  faviconUrl: text("favicon_url"),
  sourceHost: text("source_host"),
  filePath: text("file_path"),
  fileSize: integer("file_size"),
  fileMime: text("file_mime"),

  categoryId: integer("category_id").references(() => categories.id, { onDelete: "set null" }),

  note: text(),              // 个人备注
  rating: integer(),         // 1-5
  starred: integer({ mode: "boolean" }).notNull().default(false),
  isArchived: integer("is_archived", { mode: "boolean" }).notNull().default(false),

  aiSummary: text("ai_summary"),
  publishedAt: text("published_at"),

  createdAt: integer("created_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .notNull(),
  updatedAt: integer("updated_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .$onUpdate(() => new Date())
    .notNull(),
});

// ─── 收藏-标签 多对多 ─────────────────────────────────
export const itemTags = sqliteTable("item_tags", {
  itemId: integer("item_id").notNull().references(() => items.id, { onDelete: "cascade" }),
  tagId: integer("tag_id").notNull().references(() => tags.id, { onDelete: "cascade" }),
});

// ─── 文章表 ───────────────────────────────────────────
export const articles = sqliteTable("articles", {
  id: integer().primaryKey({ autoIncrement: true }),
  userId: integer("user_id").notNull(),
  title: text().notNull().default("无标题文章"),
  content: text().notNull().default(""),
  coverUrl: text("cover_url"),
  status: text({ enum: ["draft", "published"] }).notNull().default("draft"),
  wordCount: integer("word_count").notNull().default(0),
  shareToken: text("share_token").unique(),
  shareExpiresAt: text("share_expires_at"),
  createdAt: integer("created_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .notNull(),
  updatedAt: integer("updated_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .$onUpdate(() => new Date())
    .notNull(),
});

// ─── 文章-收藏 关联表 ─────────────────────────────────
export const articleItems = sqliteTable("article_items", {
  articleId: integer("article_id").notNull().references(() => articles.id, { onDelete: "cascade" }),
  itemId: integer("item_id").notNull().references(() => items.id, { onDelete: "cascade" }),
  sortOrder: integer("sort_order").notNull().default(0),
});

// ─── 设置表 ───────────────────────────────────────────
export const settings = sqliteTable("settings", {
  key: text().primaryKey(),
  value: text({ mode: "json" }),
  updatedAt: integer("updated_at", { mode: "timestamp_ms" })
    .default(sql`(cast((julianday('now') - 2440587.5)*86400000 as integer))`)
    .notNull(),
});