refactor: 拆分 config.php 为 lib/ 模块，消除页面层重复代码

纯结构性重构，不改变任何功能。 - config.php 由 739 行缩减为 42 行，改为纯引导入口；新增 ROOT_DIR 常量统一拼接绝对路径（lib/ 内模块的 __DIR__ 会指向 lib/，必须替换） - 新增 lib/ 五个模块 db.php / helpers.php / auth.php / movies.php / stats.php，由 config.php 按 db → helpers → auth → movies → stats 顺序加载 - add.php、edit.php 各自约 80 行重复的 POST 处理改为调用 resolveCinemaId / resolvePersonIds / linkViewers / uploadImageFile / saveBase64Image / uploadMultiplePhotos / deleteStoredFile - cinemas.php、persons.php 中重复 4 次的颜色校验改用 normalizeHexColor() - toggleNewViewer / removeViewerRow / toggleNewCinema 下沉至 js/main.js， add.php 中的 removeViewer 统一更名为 removeViewerRow - 删除死代码：imageUrl()（全项目无调用）；cinemas.php 配色数组中本就会被 array_slice 丢弃的 extra 颜色逻辑，简化为单条扁平 50 元素数组 - README 目录结构补充 lib/ 说明验证方式：以便携 PHP 8.4 搭建 A/B 回归环境，播种固定数据后遍历 47 个 GET/POST 端点录制「状态码 + 响应体」。重构前后 42 个逐字节相同、2 个仅上传文件名时间戳不同、3 个差异均为内联脚本下沉（已单独校验函数体逐字符等价，剥离脚本后 HTML 标记完全一致）。24 个 PHP 文件语法检查全部通过。
2026-09-21 12:56:30 +08:00
parent 40e1bc5e56
commit dd957d45bd
13 changed files with 1002 additions and 1022 deletions
@@ -0,0 +1,126 @@
+<?php
+// ============================================
+// 文件: lib/db.php
+// 说明: 数据库连接与初始化（建表 / 字段迁移 / 历史数据迁移 / 默认管理员）
+// ============================================
+
+// 数据库连接
+function getDB() {
+    try {
+        $db = new PDO('sqlite:' . DB_PATH);
+        $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+        $db->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+        return $db;
+    } catch (PDOException $e) {
+        die('数据库连接失败: ' . $e->getMessage());
+    }
+}
+
+// 初始化数据库
+function initDB() {
+    $db = getDB();
+
+    // 管理员表
+    $db->exec("
+        CREATE TABLE IF NOT EXISTS admins (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            username TEXT UNIQUE NOT NULL,
+            password TEXT NOT NULL,
+            avatar TEXT
+        )
+    ");
+
+    // 电影院表
+    $db->exec("
+        CREATE TABLE IF NOT EXISTS cinemas (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            place TEXT NOT NULL,
+            name TEXT NOT NULL,
+            address TEXT,
+            color TEXT DEFAULT '#888888'
+        )
+    ");
+
+    // 电影表
+    $db->exec("
+        CREATE TABLE IF NOT EXISTS movies (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            title TEXT NOT NULL,
+            info TEXT,
+            remark TEXT,
+            poster_path TEXT,
+            ticket_path TEXT,
+            photo_path TEXT,
+            cinema_id INTEGER,
+            watch_date DATE,
+            created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (cinema_id) REFERENCES cinemas(id) ON DELETE SET NULL
+        )
+    ");
+
+    // 观影人表
+    $db->exec("
+        CREATE TABLE IF NOT EXISTS persons (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            name TEXT NOT NULL UNIQUE,
+            color TEXT DEFAULT '#888888',
+            avatar TEXT
+        )
+    ");
+
+    // 观影关联表
+    $db->exec("
+        CREATE TABLE IF NOT EXISTS viewers (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            movie_id INTEGER NOT NULL,
+            name TEXT,
+            person_id INTEGER,
+            FOREIGN KEY (movie_id) REFERENCES movies(id) ON DELETE CASCADE,
+            FOREIGN KEY (person_id) REFERENCES persons(id) ON DELETE SET NULL
+        )
+    ");
+
+    // 多照片表
+    $db->exec("
+        CREATE TABLE IF NOT EXISTS movie_photos (
+            id INTEGER PRIMARY KEY AUTOINCREMENT,
+            movie_id INTEGER NOT NULL,
+            photo_path TEXT NOT NULL,
+            created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+            FOREIGN KEY (movie_id) REFERENCES movies(id) ON DELETE CASCADE
+        )
+    ");
+
+    // ===== 迁移字段 =====
+    try { $db->exec("ALTER TABLE cinemas ADD COLUMN color TEXT DEFAULT '#888888'"); } catch (PDOException $e) {}
+    try { $db->exec("ALTER TABLE admins ADD COLUMN avatar TEXT"); } catch (PDOException $e) {}
+    try { $db->exec("ALTER TABLE persons ADD COLUMN avatar TEXT"); } catch (PDOException $e) {}
+    try { $db->exec("ALTER TABLE movies ADD COLUMN remark TEXT"); } catch (PDOException $e) {}
+    try { $db->exec("ALTER TABLE viewers ADD COLUMN person_id INTEGER REFERENCES persons(id) ON DELETE SET NULL"); } catch (PDOException $e) {}
+    // 新增：管理员关联观影人
+    try { $db->exec("ALTER TABLE admins ADD COLUMN person_id INTEGER REFERENCES persons(id) ON DELETE SET NULL"); } catch (PDOException $e) {}
+
+    // ===== 迁移旧数据 =====
+    // 将 viewers.name 迁移到 persons
+    $stmt = $db->query("SELECT DISTINCT name FROM viewers WHERE name != '' AND name IS NOT NULL");
+    $names = $stmt->fetchAll(PDO::FETCH_COLUMN);
+    foreach ($names as $name) {
+        $chk = $db->prepare("SELECT id FROM persons WHERE name = ?");
+        $chk->execute([$name]);
+        if (!$chk->fetch()) {
+            $ins = $db->prepare("INSERT INTO persons (name) VALUES (?)");
+            $ins->execute([$name]);
+        }
+    }
+    $update = $db->prepare("UPDATE viewers SET person_id = (SELECT id FROM persons WHERE persons.name = viewers.name) WHERE person_id IS NULL AND name IS NOT NULL");
+    $update->execute();
+
+    // 默认管理员
+    $stmt = $db->prepare("SELECT COUNT(*) FROM admins");
+    $stmt->execute();
+    if ($stmt->fetchColumn() == 0) {
+        $hashed = password_hash('123456', PASSWORD_DEFAULT);
+        $stmt = $db->prepare("INSERT INTO admins (username, password) VALUES (?, ?)");
+        $stmt->execute(['admin', $hashed]);
+    }
+}