diff --git a/.gitignore b/.gitignore
index a62cf7a..e9ccc16 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 *.json
 .vscode/
+export/
+cache/
diff --git a/APIError.ts b/APIError.ts
index c7cc1a5..7f71505 100644
--- a/APIError.ts
+++ b/APIError.ts
@@ -1,14 +1,14 @@
-export class APIError extends Error {
-  response: Response;
-  json: unknown;
-  constructor(
-    { response, message }: {
-      response: Response;
-      json?: unknown;
-      message?: string;
-    },
-  ) {
-    super(message);
-    this.response = response;
-  }
-}
+export class APIError extends Error {
+  response: Response;
+  json: unknown;
+  constructor(
+    { response, message }: {
+      response: Response;
+      json?: unknown;
+      message?: string;
+    },
+  ) {
+    super(message);
+    this.response = response;
+  }
+}
diff --git a/cache.ts b/cache.ts
new file mode 100644
index 0000000..f445d06
--- /dev/null
+++ b/cache.ts
@@ -0,0 +1,62 @@
+// deno-lint-ignore-file require-await
+import { path } from "./deps.ts";
+
+export type Cache = {
+  read: <T>(key: string) => Promise<T | undefined>;
+  write: <T>(key: string, value: T) => Promise<void>;
+};
+
+export class MemoryCache implements Cache {
+  private cache: Record<string, unknown> = {};
+
+  async read<T>(key: string): Promise<T | undefined> {
+    return this.cache[key] as T;
+  }
+
+  async write<T>(key: string, value: T): Promise<void> {
+    this.cache[key] = value;
+  }
+}
+
+/**
+ * File Cache stores data in a folder. Each file is named by the sha256 of its key.
+ */
+export class FileCache implements Cache {
+  constructor(private path: string) {}
+
+  private async getPath(key: string): Promise<string> {
+    await Deno.mkdir(this.path, { recursive: true });
+
+    const hash = await crypto.subtle.digest(
+      "SHA-256",
+      new TextEncoder().encode(key),
+    );
+    const hashHex = Array.from(new Uint8Array(hash))
+      .map((b) => b.toString(16).padStart(2, "0"))
+      .join("");
+
+    return path.join(this.path, hashHex);
+  }
+
+  async read<T>(key: string): Promise<T | undefined> {
+    const path = await this.getPath(key);
+    try {
+      const data = await Deno.readTextFile(path);
+      return JSON.parse(data);
+    } catch (e) {
+      if (e instanceof Deno.errors.NotFound) {
+        return undefined;
+      }
+      throw e;
+    }
+  }
+
+  async write<T>(key: string, value: T): Promise<void> {
+    const path = await this.getPath(key);
+    const encoder = new TextEncoder();
+    const data = encoder.encode(JSON.stringify(value));
+    const swapPath = `${path}.swap`;
+    await Deno.writeFile(swapPath, data);
+    await Deno.rename(swapPath, path);
+  }
+}
diff --git a/constant.ts b/constant.ts
index 4dc1904..8beeec1 100644
--- a/constant.ts
+++ b/constant.ts
@@ -1,11 +1,11 @@
-export const S3SI_VERSION = "0.1.0";
-export const NSOAPP_VERSION = "2.3.1";
-export const USERAGENT = `s3si.ts/${S3SI_VERSION}`;
-export const DEFAULT_APP_USER_AGENT =
-  "Mozilla/5.0 (Linux; Android 11; Pixel 5) " +
-  "AppleWebKit/537.36 (KHTML, like Gecko) " +
-  "Chrome/94.0.4606.61 Mobile Safari/537.36";
-export const SPLATNET3_URL = "https://api.lp1.av5ja.srv.nintendo.net";
-export const SPLATNET3_ENDPOINT =
-  "https://api.lp1.av5ja.srv.nintendo.net/api/graphql";
-export const S3SI_NAMESPACE = "63941e1c-e32e-4b56-9a1d-f6fbe19ef6e1";
+export const S3SI_VERSION = "0.1.0";
+export const NSOAPP_VERSION = "2.3.1";
+export const USERAGENT = `s3si.ts/${S3SI_VERSION}`;
+export const DEFAULT_APP_USER_AGENT =
+  "Mozilla/5.0 (Linux; Android 11; Pixel 5) " +
+  "AppleWebKit/537.36 (KHTML, like Gecko) " +
+  "Chrome/94.0.4606.61 Mobile Safari/537.36";
+export const SPLATNET3_URL = "https://api.lp1.av5ja.srv.nintendo.net";
+export const SPLATNET3_ENDPOINT =
+  "https://api.lp1.av5ja.srv.nintendo.net/api/graphql";
+export const S3SI_NAMESPACE = "63941e1c-e32e-4b56-9a1d-f6fbe19ef6e1";
diff --git a/deps.ts b/deps.ts
index 3d57a95..0b944a7 100644
--- a/deps.ts
+++ b/deps.ts
@@ -8,3 +8,7 @@ export * as flags from "https://deno.land/std@0.160.0/flags/mod.ts";
 export * as io from "https://deno.land/std@0.160.0/io/mod.ts";
 export * as uuid from "https://deno.land/std@0.160.0/uuid/mod.ts";
 export * as msgpack from "https://deno.land/x/msgpack@v1.4/mod.ts";
+export * as path from "https://deno.land/std@0.160.0/path/mod.ts";
+export * as datetime from "https://deno.land/std@0.160.0/datetime/mod.ts";
+export { MultiProgressBar } from "https://deno.land/x/progress@v1.2.8/mod.ts";
+export { Mutex } from "https://deno.land/x/semaphore@v1.1.1/mod.ts";
diff --git a/exporter/file.ts b/exporter/file.ts
new file mode 100644
index 0000000..b28c601
--- /dev/null
+++ b/exporter/file.ts
@@ -0,0 +1,53 @@
+import { BattleExporter, VsHistoryDetail } from "../types.ts";
+import { datetime, path } from "../deps.ts";
+import { NSOAPP_VERSION, S3SI_VERSION } from "../constant.ts";
+
+const FILENAME_FORMAT = "yyyyMMddHHmmss";
+
+type FileExporterType = {
+  type: "VS" | "COOP";
+  nsoVersion: string;
+  s3siVersion: string;
+  exportTime: string;
+  data: VsHistoryDetail;
+};
+
+/**
+ * Exporter to file.
+ *
+ * This is useful for debugging. It will write each battle detail to a file.
+ * Timestamp is used as filename. Example: 2021-01-01T00:00:00.000Z.json
+ */
+export class FileExporter implements BattleExporter<VsHistoryDetail> {
+  name = "file";
+  constructor(private exportPath: string) {
+  }
+  async exportBattle(detail: VsHistoryDetail) {
+    await Deno.mkdir(this.exportPath, { recursive: true });
+
+    const playedTime = new Date(detail.playedTime);
+    const filename = `${datetime.format(playedTime, FILENAME_FORMAT)}.json`;
+    const filepath = path.join(this.exportPath, filename);
+
+    const body: FileExporterType = {
+      type: "VS",
+      nsoVersion: NSOAPP_VERSION,
+      s3siVersion: S3SI_VERSION,
+      exportTime: new Date().toISOString(),
+      data: detail,
+    };
+
+    await Deno.writeTextFile(filepath, JSON.stringify(body));
+  }
+  async getLatestBattleTime() {
+    const dirs: Deno.DirEntry[] = [];
+    for await (const i of Deno.readDir(this.exportPath)) dirs.push(i);
+
+    const files = dirs.filter((i) => i.isFile).map((i) => i.name);
+    const timestamps = files.map((i) => i.replace(/\.json$/, "")).map((i) =>
+      datetime.parse(i, FILENAME_FORMAT)
+    );
+
+    return timestamps.reduce((a, b) => (a > b ? a : b), new Date(0));
+  }
+}
diff --git a/exporter/stat.ink.ts b/exporter/stat.ink.ts
new file mode 100644
index 0000000..7340314
--- /dev/null
+++ b/exporter/stat.ink.ts
@@ -0,0 +1,21 @@
+import { BattleExporter, VsHistoryDetail } from "../types.ts";
+
+/**
+ * Exporter to stat.ink.
+ *
+ * This is the default exporter. It will upload each battle detail to stat.ink.
+ */
+export class StatInkExporter implements BattleExporter<VsHistoryDetail> {
+  name = "stat.ink";
+  constructor(private statInkApiKey: string) {
+    if (statInkApiKey.length !== 43) {
+      throw new Error("Invalid stat.ink API key");
+    }
+  }
+  async exportBattle(detail: VsHistoryDetail) {
+    throw new Error("Function not implemented.");
+  }
+  async getLatestBattleTime() {
+    return new Date();
+  }
+}
diff --git a/iksm.ts b/iksm.ts
index 502f9b7..0accaa3 100644
--- a/iksm.ts
+++ b/iksm.ts
@@ -58,7 +58,7 @@ export async function loginManually(): Promise<string> {
     'Log in, right click the "Select this account" button, copy the link address, and paste it below:',
   );
 
-  const login = await readline();
+  const login = (await readline()).trim();
   if (!login) {
     throw new Error("No login URL provided");
   }
diff --git a/s3si.ts b/s3si.ts
index 29cd8e0..35a7d5f 100644
--- a/s3si.ts
+++ b/s3si.ts
@@ -1,44 +1,103 @@
 import { getBulletToken, getGToken, loginManually } from "./iksm.ts";
 import { APIError } from "./APIError.ts";
-import { flags } from "./deps.ts";
+import { flags, MultiProgressBar, Mutex } from "./deps.ts";
 import { DEFAULT_STATE, State } from "./state.ts";
-import { checkToken, getBattleList } from "./splatnet3.ts";
+import { checkToken, getBattleDetail, getBattleList } from "./splatnet3.ts";
+import { BattleExporter, VsHistoryDetail } from "./types.ts";
+import { Cache, FileCache, MemoryCache } from "./cache.ts";
+import { StatInkExporter } from "./exporter/stat.ink.ts";
+import { readline } from "./utils.ts";
+import { FileExporter } from "./exporter/file.ts";
 
 type Opts = {
-  configPath: string;
+  profilePath: string;
+  exporter: string;
+  progress: boolean;
   help?: boolean;
 };
 
-const DEFAULT_OPTS = {
-  configPath: "./config.json",
+const DEFAULT_OPTS: Opts = {
+  profilePath: "./profile.json",
+  exporter: "stat.ink",
+  progress: true,
   help: false,
 };
 
+/**
+ * Fetch battle and cache it.
+ */
+class BattleFetcher {
+  state: State;
+  cache: Cache;
+  lock: Record<string, Mutex | undefined> = {};
+
+  constructor(
+    { cache = new MemoryCache(), state }: { state: State; cache?: Cache },
+  ) {
+    this.state = state;
+    this.cache = cache;
+  }
+  getLock(id: string): Mutex {
+    let cur = this.lock[id];
+    if (!cur) {
+      cur = new Mutex();
+      this.lock[id] = cur;
+    }
+    return cur;
+  }
+  fetchBattle(id: string): Promise<VsHistoryDetail> {
+    const lock = this.getLock(id);
+
+    return lock.use(async () => {
+      const cached = await this.cache.read<VsHistoryDetail>(id);
+      if (cached) {
+        return cached;
+      }
+
+      const detail = (await getBattleDetail(this.state, id))
+        .vsHistoryDetail;
+
+      await this.cache.write(id, detail);
+
+      return detail;
+    });
+  }
+}
+
+type Progress = {
+  current: number;
+  total: number;
+};
+
 class App {
   state: State = DEFAULT_STATE;
+
   constructor(public opts: Opts) {
     if (this.opts.help) {
       console.log(
         `Usage: deno run --allow-net --allow-read --allow-write ${Deno.mainModule} [options]
 
 Options:
-    --config-path <path>    Path to config file (default: ./config.json)
-    --help                  Show this help message and exit`,
+    --profile-path <path>, -p    Path to config file (default: ./profile.json)
+    --exporter <exporter>, -e    Exporter to use (default: stat.ink), available: stat.ink,file
+    --no-progress, -n            Disable progress bar
+    --help                       Show this help message and exit`,
       );
       Deno.exit(0);
     }
   }
-  async writeState() {
+  async writeState(newState: State) {
+    this.state = newState;
     const encoder = new TextEncoder();
     const data = encoder.encode(JSON.stringify(this.state, undefined, 2));
-    const swapPath = `${this.opts.configPath}.swap`;
+    const swapPath = `${this.opts.profilePath}.swap`;
     await Deno.writeFile(swapPath, data);
-    await Deno.rename(swapPath, this.opts.configPath);
+    await Deno.rename(swapPath, this.opts.profilePath);
   }
   async readState() {
     const decoder = new TextDecoder();
     try {
-      const data = await Deno.readFile(this.opts.configPath);
+      const data = await Deno.readFile(this.opts.profilePath);
       const json = JSON.parse(decoder.decode(data));
       this.state = {
         ...DEFAULT_STATE,
@@ -48,23 +107,60 @@ Options:
       console.warn(
         `Failed to read config file, create new config file. (${e})`,
       );
-      await this.writeState();
+      await this.writeState(DEFAULT_STATE);
     }
   }
+  async getExporters(): Promise<BattleExporter<VsHistoryDetail>[]> {
+    const exporters = this.opts.exporter.split(",");
+    const out: BattleExporter<VsHistoryDetail>[] = [];
+
+    if (exporters.includes("stat.ink")) {
+      if (!this.state.statInkApiKey) {
+        console.log("stat.ink API key is not set. Please enter below.");
+        const key = (await readline()).trim();
+        if (!key) {
+          console.error("API key is required.");
+          Deno.exit(1);
+        }
+        await this.writeState({
+          ...this.state,
+          statInkApiKey: key,
+        });
+      }
+      out.push(new StatInkExporter(this.state.statInkApiKey!));
+    }
+
+    if (exporters.includes("file")) {
+      out.push(new FileExporter(this.state.fileExportPath));
+    }
+
+    return out;
+  }
   async run() {
     await this.readState();
 
+    const bar = this.opts.progress
+      ? new MultiProgressBar({
+        title: "Export battles",
+      })
+      : undefined;
+    const exporters = await this.getExporters();
+
     try {
       if (!this.state.loginState?.sessionToken) {
         const sessionToken = await loginManually();
-        this.state.loginState = {
-          ...this.state.loginState,
-          sessionToken,
-        };
-        await this.writeState();
-      }
-      const sessionToken = this.state.loginState.sessionToken!;
 
+        await this.writeState({
+          ...this.state,
+          loginState: {
+            ...this.state.loginState,
+            sessionToken,
+          },
+        });
+      }
+      const sessionToken = this.state.loginState!.sessionToken!;
+
+      console.log("Checking token...");
       if (!await checkToken(this.state)) {
         console.log("Token expired, refetch tokens.");
 
@@ -80,22 +176,51 @@ Options:
           appUserAgent: this.state.appUserAgent,
         });
 
-        this.state = {
+        await this.writeState({
           ...this.state,
           loginState: {
             ...this.state.loginState,
             gToken: webServiceToken,
             bulletToken,
           },
-          userLang,
-          userCountry,
-        };
-
-        await this.writeState();
+          userLang: this.state.userLang ?? userLang,
+          userCountry: this.state.userCountry ?? userCountry,
+        });
       }
 
+      const fetcher = new BattleFetcher({
+        cache: new FileCache(this.state.cacheDir),
+        state: this.state,
+      });
+      console.log("Fetching battle list...");
       const battleList = await getBattleList(this.state);
-      console.log(battleList);
+
+      const allProgress: Record<string, Progress> = Object.fromEntries(
+        exporters.map((i) => [i.name, {
+          current: 0,
+          total: 1,
+        }]),
+      );
+      const redraw = (name: string, progress: Progress) => {
+        allProgress[name] = progress;
+        bar?.render(
+          Object.entries(allProgress).map(([name, progress]) => ({
+            completed: progress.current,
+            total: progress.total,
+            text: name,
+          })),
+        );
+      };
+      await Promise.all(
+        exporters.map((e) =>
+          this.exportBattleList(
+            fetcher,
+            e,
+            battleList,
+            (progress) => redraw(e.name, progress),
+          )
+        ),
+      );
     } catch (e) {
       if (e instanceof APIError) {
         console.error(`APIError: ${e.message}`, e.response, e.json);
@@ -104,15 +229,56 @@ Options:
       }
     }
   }
+  /**
+   * Export battle list.
+   *
+   * @param fetcher BattleFetcher
+   * @param exporter BattleExporter
+   * @param battleList ID list of battles, sorted by date, newest first
+   * @param onStep Callback function called when a battle is exported
+   */
+  async exportBattleList(
+    fetcher: BattleFetcher,
+    exporter: BattleExporter<VsHistoryDetail>,
+    battleList: string[],
+    onStep?: (progress: Progress) => void,
+  ) {
+    const workQueue = battleList;
+    let done = 0;
+
+    const step = async (battle: string) => {
+      const detail = await fetcher.fetchBattle(battle);
+      await exporter.exportBattle(detail);
+      done += 1;
+      onStep?.({
+        current: done,
+        total: workQueue.length,
+      });
+    };
+
+    onStep?.({
+      current: done,
+      total: workQueue.length,
+    });
+    for (const battle of workQueue) {
+      await step(battle);
+    }
+  }
 }
 
 const parseArgs = (args: string[]) => {
   const parsed = flags.parse(args, {
-    string: ["configPath"],
-    boolean: ["help"],
+    string: ["profilePath", "exporter"],
+    boolean: ["help", "progress"],
+    negatable: ["progress"],
     alias: {
       "help": "h",
-      "configPath": ["c", "config-path"],
+      "profilePath": ["p", "profile-path"],
+      "exporter": ["e"],
+      "progress": ["n"],
+    },
+    default: {
+      progress: true,
     },
   });
   return parsed;
diff --git a/splatnet3.ts b/splatnet3.ts
index c7d69cc..d9ee140 100644
--- a/splatnet3.ts
+++ b/splatnet3.ts
@@ -1,123 +1,123 @@
-import { getWebViewVer } from "./iksm.ts";
-import { State } from "./state.ts";
-import { DEFAULT_APP_USER_AGENT, SPLATNET3_ENDPOINT } from "./constant.ts";
-import { APIError } from "./APIError.ts";
-import {
-  BattleListType,
-  GraphQLResponse,
-  HistoryGroups,
-  Queries,
-  RespMap,
-  VarsMap,
-} from "./types.ts";
-
-async function request<Q extends Queries>(
-  state: State,
-  query: Q,
-  ...rest: VarsMap[Q]
-): Promise<RespMap[Q]> {
-  const variables = rest?.[0] ?? {};
-  const body = {
-    extensions: {
-      persistedQuery: {
-        sha256Hash: query,
-        version: 1,
-      },
-    },
-    variables,
-  };
-  const resp = await fetch(SPLATNET3_ENDPOINT, {
-    method: "POST",
-    headers: {
-      "Authorization": `Bearer ${state.loginState?.bulletToken}`,
-      "Accept-Language": state.userLang ?? "en-US",
-      "User-Agent": state.appUserAgent ?? DEFAULT_APP_USER_AGENT,
-      "X-Web-View-Ver": await getWebViewVer(),
-      "Content-Type": "application/json",
-      "Accept": "*/*",
-      "Origin": "https://api.lp1.av5ja.srv.nintendo.net",
-      "X-Requested-With": "com.nintendo.znca",
-      "Referer":
-        `https://api.lp1.av5ja.srv.nintendo.net/?lang=${state.userLang}&na_country=${state.userCountry}&na_lang=${state.userLang}`,
-      "Accept-Encoding": "gzip, deflate",
-      "Cookie": `_gtoken: ${state.loginState?.gToken}`,
-    },
-    body: JSON.stringify(body),
-  });
-  if (resp.status !== 200) {
-    throw new APIError({
-      response: resp,
-      message: "Splatnet3 request failed",
-    });
-  }
-
-  const json: GraphQLResponse<RespMap[Q]> = await resp.json();
-  if ("errors" in json) {
-    throw new APIError({
-      response: resp,
-      json,
-      message: `Splatnet3 request failed(${json.errors?.[0].message})`,
-    });
-  }
-  return json.data;
-}
-
-export async function checkToken(state: State) {
-  if (
-    !state.loginState?.sessionToken || !state.loginState?.bulletToken ||
-    !state.loginState?.gToken
-  ) {
-    return false;
-  }
-
-  try {
-    await request(state, Queries.HomeQuery);
-    return true;
-  } catch (_e) {
-    return false;
-  }
-}
-
-function getIdsFromGroups({ historyGroups }: { historyGroups: HistoryGroups }) {
-  return historyGroups.nodes.flatMap((i) => i.historyDetails.nodes).map((i) =>
-    i.id
-  );
-}
-
-const BATTLE_LIST_TYPE_MAP: Record<
-  BattleListType,
-  (state: State) => Promise<string[]>
-> = {
-  [BattleListType.Latest]: (state: State) =>
-    request(state, Queries.LatestBattleHistoriesQuery)
-      .then((r) => getIdsFromGroups(r.latestBattleHistories)),
-  [BattleListType.Regular]: (state: State) =>
-    request(state, Queries.RegularBattleHistoriesQuery)
-      .then((r) => getIdsFromGroups(r.regularBattleHistories)),
-  [BattleListType.Bankara]: (state: State) =>
-    request(state, Queries.BankaraBattleHistoriesQuery)
-      .then((r) => getIdsFromGroups(r.bankaraBattleHistories)),
-  [BattleListType.Private]: (state: State) =>
-    request(state, Queries.PrivateBattleHistoriesQuery)
-      .then((r) => getIdsFromGroups(r.privateBattleHistories)),
-};
-
-export async function getBattleList(
-  state: State,
-  battleListType: BattleListType = BattleListType.Latest,
-) {
-  return await BATTLE_LIST_TYPE_MAP[battleListType](state);
-}
-
-export function getBattleDetail(
-  state: State,
-  id: string,
-) {
-  return request(
-    state,
-    Queries.VsHistoryDetailQuery,
-    {
-      vsResultId: id,
-    },
-  );
-}
+import { getWebViewVer } from "./iksm.ts";
+import { State } from "./state.ts";
+import { DEFAULT_APP_USER_AGENT, SPLATNET3_ENDPOINT } from "./constant.ts";
+import { APIError } from "./APIError.ts";
+import {
+  BattleListType,
+  GraphQLResponse,
+  HistoryGroups,
+  Queries,
+  RespMap,
+  VarsMap,
+} from "./types.ts";
+
+async function request<Q extends Queries>(
+  state: State,
+  query: Q,
+  ...rest: VarsMap[Q]
+): Promise<RespMap[Q]> {
+  const variables = rest?.[0] ?? {};
+  const body = {
+    extensions: {
+      persistedQuery: {
+        sha256Hash: query,
+        version: 1,
+      },
+    },
+    variables,
+  };
+  const resp = await fetch(SPLATNET3_ENDPOINT, {
+    method: "POST",
+    headers: {
+      "Authorization": `Bearer ${state.loginState?.bulletToken}`,
+      "Accept-Language": state.userLang ?? "en-US",
+      "User-Agent": state.appUserAgent ?? DEFAULT_APP_USER_AGENT,
+      "X-Web-View-Ver": await getWebViewVer(),
+      "Content-Type": "application/json",
+      "Accept": "*/*",
+      "Origin": "https://api.lp1.av5ja.srv.nintendo.net",
+      "X-Requested-With": "com.nintendo.znca",
+      "Referer":
+        `https://api.lp1.av5ja.srv.nintendo.net/?lang=${state.userLang}&na_country=${state.userCountry}&na_lang=${state.userLang}`,
+      "Accept-Encoding": "gzip, deflate",
+      "Cookie": `_gtoken: ${state.loginState?.gToken}`,
+    },
+    body: JSON.stringify(body),
+  });
+  if (resp.status !== 200) {
+    throw new APIError({
+      response: resp,
+      message: "Splatnet3 request failed",
+    });
+  }
+
+  const json: GraphQLResponse<RespMap[Q]> = await resp.json();
+  if ("errors" in json) {
+    throw new APIError({
+      response: resp,
+      json,
+      message: `Splatnet3 request failed(${json.errors?.[0].message})`,
+    });
+  }
+  return json.data;
+}
+
+export async function checkToken(state: State) {
+  if (
+    !state.loginState?.sessionToken || !state.loginState?.bulletToken ||
+    !state.loginState?.gToken
+  ) {
+    return false;
+  }
+
+  try {
+    await request(state, Queries.HomeQuery);
+    return true;
+  } catch (_e) {
+    return false;
+  }
+}
+
+function getIdsFromGroups({ historyGroups }: { historyGroups: HistoryGroups }) {
+  return historyGroups.nodes.flatMap((i) => i.historyDetails.nodes).map((i) =>
+    i.id
+  );
+}
+
+const BATTLE_LIST_TYPE_MAP: Record<
+  BattleListType,
+  (state: State) => Promise<string[]>
+> = {
+  [BattleListType.Latest]: (state: State) =>
+    request(state, Queries.LatestBattleHistoriesQuery)
+      .then((r) => getIdsFromGroups(r.latestBattleHistories)),
+  [BattleListType.Regular]: (state: State) =>
+    request(state, Queries.RegularBattleHistoriesQuery)
+      .then((r) => getIdsFromGroups(r.regularBattleHistories)),
+  [BattleListType.Bankara]: (state: State) =>
+    request(state, Queries.BankaraBattleHistoriesQuery)
+      .then((r) => getIdsFromGroups(r.bankaraBattleHistories)),
+  [BattleListType.Private]: (state: State) =>
+    request(state, Queries.PrivateBattleHistoriesQuery)
+      .then((r) => getIdsFromGroups(r.privateBattleHistories)),
+};
+
+export async function getBattleList(
+  state: State,
+  battleListType: BattleListType = BattleListType.Latest,
+) {
+  return await BATTLE_LIST_TYPE_MAP[battleListType](state);
+}
+
+export function getBattleDetail(
+  state: State,
+  id: string,
+) {
+  return request(
+    state,
+    Queries.VsHistoryDetailQuery,
+    {
+      vsResultId: id,
+    },
+  );
+}
diff --git a/stat.ink.ts b/stat.ink.ts
deleted file mode 100644
index e69de29..0000000
diff --git a/state.ts b/state.ts
index 569c170..90570b7 100644
--- a/state.ts
+++ b/state.ts
@@ -9,8 +9,16 @@ export type State = {
   appUserAgent?: string;
   userLang?: string;
   userCountry?: string;
+
+  cacheDir: string;
+
+  // Exporter config
+  statInkApiKey?: string;
+  fileExportPath: string;
 };
 
 export const DEFAULT_STATE: State = {
+  cacheDir: "./cache",
   fGen: "https://api.imink.app/f",
+  fileExportPath: "./export",
 };
diff --git a/types.ts b/types.ts
index 77c08f9..f262a7c 100644
--- a/types.ts
+++ b/types.ts
@@ -1,96 +1,123 @@
-export enum Queries {
-  HomeQuery = "dba47124d5ec3090c97ba17db5d2f4b3",
-  LatestBattleHistoriesQuery = "7d8b560e31617e981cf7c8aa1ca13a00",
-  RegularBattleHistoriesQuery = "f6e7e0277e03ff14edfef3b41f70cd33",
-  BankaraBattleHistoriesQuery = "c1553ac75de0a3ea497cdbafaa93e95b",
-  PrivateBattleHistoriesQuery = "38e0529de8bc77189504d26c7a14e0b8",
-  VsHistoryDetailQuery = "2b085984f729cd51938fc069ceef784a",
-  CoopHistoryQuery = "817618ce39bcf5570f52a97d73301b30",
-  CoopHistoryDetailQuery = "f3799a033f0a7ad4b1b396f9a3bafb1e",
-}
-export type VarsMap = {
-  [Queries.HomeQuery]: [];
-  [Queries.LatestBattleHistoriesQuery]: [];
-  [Queries.RegularBattleHistoriesQuery]: [];
-  [Queries.BankaraBattleHistoriesQuery]: [];
-  [Queries.PrivateBattleHistoriesQuery]: [];
-  [Queries.VsHistoryDetailQuery]: [{
-    vsResultId: string;
-  }];
-  [Queries.CoopHistoryQuery]: [];
-  [Queries.CoopHistoryDetailQuery]: [{
-    coopHistoryDetailId: string;
-  }];
-};
-
-export type Image = {
-  url: string;
-  width?: number;
-  height?: number;
-};
-export type HistoryGroups = {
-  nodes: {
-    historyDetails: {
-      nodes: {
-        id: string;
-      }[];
-    };
-  }[];
-};
-export type RespMap = {
-  [Queries.HomeQuery]: {
-    currentPlayer: {
-      weapon: {
-        image: Image;
-        id: string;
-      };
-    };
-    banners: { image: Image; message: string; jumpTo: string }[];
-    friends: {
-      nodes: {
-        id: number;
-        nickname: string;
-        userIcon: Image;
-      }[];
-      totalCount: number;
-    };
-    footerMessages: unknown[];
-  };
-  [Queries.LatestBattleHistoriesQuery]: {
-    latestBattleHistories: {
-      historyGroups: HistoryGroups;
-    };
-  };
-  [Queries.RegularBattleHistoriesQuery]: {
-    regularBattleHistories: {
-      historyGroups: HistoryGroups;
-    };
-  };
-  [Queries.BankaraBattleHistoriesQuery]: {
-    bankaraBattleHistories: {
-      historyGroups: HistoryGroups;
-    };
-  };
-  [Queries.PrivateBattleHistoriesQuery]: {
-    privateBattleHistories: {
-      historyGroups: HistoryGroups;
-    };
-  };
-  [Queries.VsHistoryDetailQuery]: Record<never, never>;
-  [Queries.CoopHistoryQuery]: Record<never, never>;
-  [Queries.CoopHistoryDetailQuery]: Record<never, never>;
-};
-export type GraphQLResponse<T> = {
-  data: T;
-} | {
-  errors: {
-    message: string;
-  }[];
-};
-
-export enum BattleListType {
-  Latest,
-  Regular,
-  Bankara,
-  Private,
-}
+export enum Queries {
+  HomeQuery = "dba47124d5ec3090c97ba17db5d2f4b3",
+  LatestBattleHistoriesQuery = "7d8b560e31617e981cf7c8aa1ca13a00",
+  RegularBattleHistoriesQuery = "f6e7e0277e03ff14edfef3b41f70cd33",
+  BankaraBattleHistoriesQuery = "c1553ac75de0a3ea497cdbafaa93e95b",
+  PrivateBattleHistoriesQuery = "38e0529de8bc77189504d26c7a14e0b8",
+  VsHistoryDetailQuery = "2b085984f729cd51938fc069ceef784a",
+  CoopHistoryQuery = "817618ce39bcf5570f52a97d73301b30",
+  CoopHistoryDetailQuery = "f3799a033f0a7ad4b1b396f9a3bafb1e",
+}
+export type VarsMap = {
+  [Queries.HomeQuery]: [];
+  [Queries.LatestBattleHistoriesQuery]: [];
+  [Queries.RegularBattleHistoriesQuery]: [];
+  [Queries.BankaraBattleHistoriesQuery]: [];
+  [Queries.PrivateBattleHistoriesQuery]: [];
+  [Queries.VsHistoryDetailQuery]: [{
+    vsResultId: string;
+  }];
+  [Queries.CoopHistoryQuery]: [];
+  [Queries.CoopHistoryDetailQuery]: [{
+    coopHistoryDetailId: string;
+  }];
+};
+
+export type Image = {
+  url: string;
+  width?: number;
+  height?: number;
+};
+export type HistoryGroups = {
+  nodes: {
+    historyDetails: {
+      nodes: {
+        id: string;
+      }[];
+    };
+  }[];
+};
+export type VsHistoryDetail = {
+  id: string;
+  vsRule: {
+    name: string;
+    id: string;
+    rule: "TURF_WAR" | "AREA" | "LOFT" | "GOAL" | "CLAM" | "TRI_COLOR";
+  };
+  vsMode: {
+    id: string;
+    mode: "REGULAR" | "BANKARA" | "PRIVATE" | "FEST";
+  };
+  vsStage: {
+    id: string;
+    name: string;
+    image: Image;
+  };
+  playedTime: string; // 2021-01-01T00:00:00Z
+};
+
+export type BattleExporter<D> = {
+  name: string;
+  getLatestBattleTime: () => Promise<Date>;
+  exportBattle: (detail: D) => Promise<void>;
+};
+
+export type RespMap = {
+  [Queries.HomeQuery]: {
+    currentPlayer: {
+      weapon: {
+        image: Image;
+        id: string;
+      };
+    };
+    banners: { image: Image; message: string; jumpTo: string }[];
+    friends: {
+      nodes: {
+        id: number;
+        nickname: string;
+        userIcon: Image;
+      }[];
+      totalCount: number;
+    };
+    footerMessages: unknown[];
+  };
+  [Queries.LatestBattleHistoriesQuery]: {
+    latestBattleHistories: {
+      historyGroups: HistoryGroups;
+    };
+  };
+  [Queries.RegularBattleHistoriesQuery]: {
+    regularBattleHistories: {
+      historyGroups: HistoryGroups;
+    };
+  };
+  [Queries.BankaraBattleHistoriesQuery]: {
+    bankaraBattleHistories: {
+      historyGroups: HistoryGroups;
+    };
+  };
+  [Queries.PrivateBattleHistoriesQuery]: {
+    privateBattleHistories: {
+      historyGroups: HistoryGroups;
+    };
+  };
+  [Queries.VsHistoryDetailQuery]: {
+    vsHistoryDetail: VsHistoryDetail;
+  };
+  [Queries.CoopHistoryQuery]: Record<never, never>;
+  [Queries.CoopHistoryDetailQuery]: Record<never, never>;
+};
+export type GraphQLResponse<T> = {
+  data: T;
+} | {
+  errors: {
+    message: string;
+  }[];
+};
+
+export enum BattleListType {
+  Latest,
+  Regular,
+  Bankara,
+  Private,
+}
diff --git a/utils.ts b/utils.ts
index bc21937..a435078 100644
--- a/utils.ts
+++ b/utils.ts
@@ -23,6 +23,7 @@ export async function readline() {
       return line;
     }
   }
+  throw new Error("EOF");
 }
 
 type PromiseReturnType<T> = T extends () => Promise<infer R> ? R : never;