import Database from "better-sqlite3";
import { Config } from "./Config";
import { join } from "node:path";
import { readFileSync } from "node:fs";
import { GuildRow, GuildType } from "../../db/db";
import { Logger } from "./Logger";

const database = new Database(Config.dbPath);

const schemaPath = join(process.cwd(), "db/schema.sql");
const schema = readFileSync(schemaPath, "utf-8");
database.exec(schema);

Logger.ready("DB 활성화!");

const stmt = {
  guild: {
    // 전체
    all: database.prepare("SELECT * FROM guilds"),
    // 가져오기
    get: database.prepare("SELECT * FROM guilds WHERE ID = ?"),
    // 추가
    insert: (data: GuildRow) => {
      const keys = Object.keys(data);
      if (keys.length === 0) throw new Error("insert: 키1개는 있어야함");
      return database.prepare(`INSERT INTO guilds (${
        keys.map(k => `"${k}"`).join(", ")
      }) VALUES (${
        keys.map(k => `@${k}`).join(", ")
      })`).run(data);
    },
    // 수정
    update: (data: GuildRow) => {
      const keys = Object.keys(data).filter(k => k !== "id");
      if (keys.length === 0) throw new Error("update: 키1개는 있어야함");
      return database.prepare(`UPDATE guilds SET ${
        keys.map(k => `${k} = @${k}`).join(", ")
      } WHERE id = @id`).run(data);
    },
  },
  // user: {
  //   // 가져오기
  //   get: database.prepare("SELECT * FROM users WHERE guild_id = ? AND id = ?"),
  //   // 추가
  //   insert: (data: UserType) => {
  //     const keys = Object.keys(data);
  //     if (keys.length === 0) throw new Error("insert: 키1개는 있어야함");
  //     return database.prepare(`INSERT INTO users (${
  //       keys.map(k => `"${k}"`).join(", ")
  //     }) VALUES (${
  //       keys.map(k => `@${k}`).join(", ")
  //     })`).run(data);
  //   },
  //   // 수정
  //   update: (data: UserType) => {
  //     const keys = Object.keys(data).filter(k => k !== "guild_id" && k !== "id");
  //     if (keys.length === 0) throw new Error("update: 키1개는 있어야함");
  //     return database.prepare(`UPDATE users SET ${
  //       keys.map(k => `${k} = @${k}`).join(", ")
  //     } WHERE guild_id = @guild_id AND id = @id`).run(data);
  //   },
  // },
};

export const DB = {
  guild: {
    all() {
      return stmt.guild.all.all() as GuildType[];
    },
    get(id: string) {
      const row = stmt.guild.get.get(id) as GuildRow | undefined;
      if (!row) return undefined;
      return { ...row, options: JSON.parse(row.options) } as GuildType;
    },
    set(data: GuildType) {
      try {
        stmt.guild.insert({ ...data, options: JSON.stringify(data.options) });
        return true;
      } catch (err) {
        Logger.error(String(err));
        return false;
      }
    },
    update(data: GuildType) {
      try {
        stmt.guild.update({ ...data, options: JSON.stringify(data.options) });
        return true;
      } catch (err) {
        Logger.error(String(err));
        return false;
      }
    },
  },
  // user: {
  //   get(guildId: string, id: string) {
  //     return stmt.user.get.get(guildId, id) as UserType | undefined;
  //   },
  //   set(data: UserType) {
  //     try {
  //       stmt.user.insert(data);
  //       return true;
  //     } catch (err) {
  //       Logger.error(String(err));
  //       return false;
  //     }
  //   },
  //   update(data: UserType) {
  //     try {
  //       stmt.user.update(data);
  //       return true;
  //     } catch (err) {
  //       Logger.error(String(err));
  //       return false;
  //     }
  //   },
  // },
};