feat: 阶段2 Python后端、用户管理、统计、单词收藏与响应式适配

server/settings_api.py

@@ -0,0 +1,94 @@
+import json
+
+from flask import Blueprint, jsonify, request
+
+from .auth import login_required
+from .db import get_db, now_iso
+from .translate_service import perform_translate
+
+settings_bp = Blueprint("settings", __name__)
+
+
+def get_user_settings(user_id):
+    conn = get_db()
+    try:
+        row = conn.execute(
+            "SELECT translator, api_url, api_key, extra_config, updated_at FROM settings WHERE user_id = ?",
+            (user_id,),
+        ).fetchone()
+        if row is None:
+            return {
+                "translator": "local",
+                "api_url": "",
+                "api_key": "",
+                "extra_config": {},
+                "updated_at": "",
+            }
+        result = dict(row)
+        try:
+            result["extra_config"] = json.loads(result["extra_config"] or "{}")
+        except Exception:
+            result["extra_config"] = {}
+        return result
+    finally:
+        conn.close()
+
+
+@settings_bp.get("/api/settings/translation")
+@login_required
+def get_translation_settings(user):
+    return jsonify(get_user_settings(user["id"]))
+
+
+@settings_bp.put("/api/settings/translation")
+@login_required
+def update_translation_settings(user):
+    data = request.get_json(silent=True) or {}
+    translator = (data.get("translator") or "local").strip().lower()
+    if translator not in ("local", "mymemory", "custom"):
+        return jsonify({"error": "不支持的翻译方式"}), 400
+    extra_config = data.get("extra_config") or {}
+    if not isinstance(extra_config, dict):
+        return jsonify({"error": "extra_config 必须是对象"}), 400
+    conn = get_db()
+    try:
+        conn.execute(
+            """
+            INSERT INTO settings (user_id, translator, api_url, api_key, extra_config, updated_at)
+            VALUES (?, ?, ?, ?, ?, ?)
+            ON CONFLICT(user_id) DO UPDATE SET
+              translator = excluded.translator,
+              api_url = excluded.api_url,
+              api_key = excluded.api_key,
+              extra_config = excluded.extra_config,
+              updated_at = excluded.updated_at
+            """,
+            (
+                user["id"],
+                translator,
+                (data.get("api_url") or "").strip(),
+                (data.get("api_key") or "").strip(),
+                json.dumps(extra_config, ensure_ascii=False),
+                now_iso(),
+            ),
+        )
+        conn.commit()
+        return jsonify(get_user_settings(user["id"]))
+    finally:
+        conn.close()
+
+
+@settings_bp.post("/api/translate")
+@login_required
+def translate_text(user):
+    data = request.get_json(silent=True) or {}
+    text = (data.get("text") or "").strip()
+    if not text:
+        return jsonify({"error": "翻译内容不能为空"}), 400
+    source = (data.get("source") or "zh").strip()
+    target = (data.get("target") or "es").strip()
+    settings = get_user_settings(user["id"])
+    result = perform_translate(text, settings, source, target)
+    if not result.get("ok"):
+        return jsonify({"error": result.get("error", "翻译失败")}), 502
+    return jsonify(result)