Add Claude-powered band auto-registration from live info text

Extracts band/artist names from pasted live info via Claude (API or CLI
adapter), matches against existing bands, and lets the user review and
bulk-register new ones through a polling job queue. Also adds a
livehouse events import script and recent-bands/artists home page
sections.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

1 files changed, 125 insertions, 0 deletions

diff --git a/app/lib/claude.server.ts b/app/lib/claude.server.ts
new file mode 100644
index 0000000..4dcce6e
--- /dev/null
+++ b/app/lib/claude.server.ts
@@ -0,0 +1,125 @@
+import { spawn } from "child_process";
+import Anthropic from "@anthropic-ai/sdk";
+import type { Band } from "./db.server";
+
+export interface BandMatch {
+  extracted: string;
+  matched_id: string | null;
+  matched_name: string | null;
+  confidence: "exact" | "fuzzy" | "new";
+}
+
+// ── Shared logic ──────────────────────────────────────────────────────────────
+
+function buildPrompt(liveText: string, existingBands: Band[]): string {
+  const bandList = existingBands.map((b) => `  ${b.id}\t${b.name}`).join("\n");
+  return `ライブ情報テキストからバンド・アーティスト名を抽出し、既存バンドリストと照合してください。
+
+## ライブ情報テキスト
+${liveText}
+
+## 既存バンドリスト（UUID\t名前）
+${bandList || "  (なし)"}
+
+## タスク
+1. ライブ情報からバンド・アーティスト名をすべて抽出する
+2. 各名前を既存バンドリストと照合する（表記揺れ・全角半角・英語/日本語表記の違いなどを考慮）
+3. 以下のJSON配列のみを返す（説明文不要）:
+
+[
+  {
+    "extracted": "抽出した名前（元テキストのまま）",
+    "matched_id": "一致した既存バンドのUUID（なければnull）",
+    "matched_name": "一致した既存バンドの名前（なければnull）",
+    "confidence": "exact | fuzzy | new"
+  }
+]
+
+confidenceの定義:
+- "exact": 完全一致または明らかに同一
+- "fuzzy": 表記揺れの可能性が高い（人間の確認が必要）
+- "new": 既存リストに存在しない新しいバンド`;
+}
+
+function parseOutput(text: string): BandMatch[] {
+  const jsonMatch = text.match(/\[[\s\S]*\]/);
+  if (!jsonMatch) throw new Error("予期しない出力形式です");
+  return JSON.parse(jsonMatch[0]) as BandMatch[];
+}
+
+// ── Adapter interface ─────────────────────────────────────────────────────────
+
+interface BandMatchAdapter {
+  parseLiveInfoBands(liveText: string, existingBands: Band[]): Promise<BandMatch[]>;
+}
+
+// ── Anthropic API adapter ─────────────────────────────────────────────────────
+
+class AnthropicAPIAdapter implements BandMatchAdapter {
+  async parseLiveInfoBands(liveText: string, existingBands: Band[]): Promise<BandMatch[]> {
+    const client = new Anthropic();
+    const response = await client.messages.create({
+      model: "claude-sonnet-4-6",
+      max_tokens: 2048,
+      messages: [{ role: "user", content: buildPrompt(liveText, existingBands) }],
+    });
+    const text = response.content[0].type === "text" ? response.content[0].text : "";
+    return parseOutput(text);
+  }
+}
+
+// ── Claude Code CLI adapter ───────────────────────────────────────────────────
+
+class ClaudeCodeCLIAdapter implements BandMatchAdapter {
+  async parseLiveInfoBands(liveText: string, existingBands: Band[]): Promise<BandMatch[]> {
+    const text = await this.runCLI(buildPrompt(liveText, existingBands));
+    return parseOutput(text);
+  }
+
+  private runCLI(prompt: string): Promise<string> {
+    return new Promise((resolve, reject) => {
+      const proc = spawn(
+        "claude",
+        ["--print", "--output-format", "json", "--no-session-persistence", "--model", "sonnet"],
+        { stdio: ["pipe", "pipe", "pipe"] }
+      );
+
+      let stdout = "";
+      let stderr = "";
+      proc.stdout.on("data", (d: Buffer) => { stdout += d.toString(); });
+      proc.stderr.on("data", (d: Buffer) => { stderr += d.toString(); });
+
+      proc.on("error", (err) => reject(new Error(`claude CLI 起動失敗: ${err.message}`)));
+      proc.on("close", (code) => {
+        if (code !== 0) {
+          reject(new Error(`claude CLI がコード ${code} で終了: ${stderr.trim()}`));
+          return;
+        }
+        try {
+          // --output-format json wraps result in { "result": "..." }
+          const json = JSON.parse(stdout) as { result?: string };
+          resolve(json.result ?? stdout);
+        } catch {
+          resolve(stdout);
+        }
+      });
+
+      proc.stdin.write(prompt);
+      proc.stdin.end();
+    });
+  }
+}
+
+// ── Factory ───────────────────────────────────────────────────────────────────
+
+function getAdapter(): BandMatchAdapter {
+  const type = (process.env.CLAUDE_ADAPTER ?? "api").toLowerCase();
+  if (type === "cli") return new ClaudeCodeCLIAdapter();
+  return new AnthropicAPIAdapter();
+}
+
+// ── Public API (unchanged for callers) ───────────────────────────────────────
+
+export function parseLiveInfoBands(liveText: string, existingBands: Band[]): Promise<BandMatch[]> {
+  return getAdapter().parseLiveInfoBands(liveText, existingBands);
+}