Stand 2026-04-13: PHP/MySQL Infrastruktur, Flussmanagement, Stadt-Prototyp

- PHP/MySQL Backend (XAMPP + Produktionsserver) - Front-Controller, API-Endpunkte, Session-Management - Flussmanagement-Simulation (Echtzeit, Punkt-basierter Fluss) - Stadt & Raumplanung (Prototyp, Top-Down Kachelsystem) - Klimawaechter 3D: Deiche kleiner, Baeume kippen, Budget angepasst - persistence.ts: Dualer Speicher (localStorage + Server-API) - 6 Unit-Test-Dateien fuer bestehende Simulationen Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-13 16:43:42 +02:00
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+-- GeoGraSim — MySQL Schema
+-- Ausfuehren: mysql -u root geograsim < schema.sql
+
+CREATE DATABASE IF NOT EXISTS geograsim CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+USE geograsim;
+
+-- Lehrkraefte
+CREATE TABLE IF NOT EXISTS teachers (
+  id           INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+  username     VARCHAR(64)  NOT NULL UNIQUE,
+  password     VARCHAR(255) NOT NULL,
+  display_name VARCHAR(128),
+  created_at   TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+) ENGINE=InnoDB;
+
+-- Klassen
+CREATE TABLE IF NOT EXISTS classes (
+  id           INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+  teacher_id   INT UNSIGNED NOT NULL,
+  name         VARCHAR(64) NOT NULL,
+  school_year  VARCHAR(10),
+  join_code    CHAR(6) NOT NULL UNIQUE,
+  created_at   TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  FOREIGN KEY (teacher_id) REFERENCES teachers(id) ON DELETE CASCADE
+) ENGINE=InnoDB;
+
+-- Schueler-Sessions (anonym, UUID-Cookie)
+CREATE TABLE IF NOT EXISTS student_sessions (
+  id           CHAR(36) PRIMARY KEY,
+  class_id     INT UNSIGNED,
+  display_name VARCHAR(64),
+  created_at   TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  last_seen    TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  FOREIGN KEY (class_id) REFERENCES classes(id) ON DELETE SET NULL
+) ENGINE=InnoDB;
+
+-- Spielstaende (ersetzt localStorage)
+CREATE TABLE IF NOT EXISTS game_saves (
+  id           INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+  session_id   CHAR(36) NOT NULL,
+  save_key     VARCHAR(64) NOT NULL,
+  save_data    MEDIUMTEXT NOT NULL,
+  save_version TINYINT UNSIGNED DEFAULT 2,
+  updated_at   TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+  UNIQUE KEY uq_session_key (session_id, save_key),
+  FOREIGN KEY (session_id) REFERENCES student_sessions(id) ON DELETE CASCADE
+) ENGINE=InnoDB;
+
+-- Assessment-Daten (eine Zeile pro Simulationsabschluss)
+CREATE TABLE IF NOT EXISTS assessments (
+  id               INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
+  session_id       CHAR(36) NOT NULL,
+  sim_id           VARCHAR(16) NOT NULL,
+  class_id         INT UNSIGNED,
+  process_log      JSON,
+  predictions      JSON,
+  results          JSON,
+  reflections      JSON,
+  duration_ms      INT UNSIGNED,
+  completed_phases JSON,
+  submitted_at     TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  INDEX idx_class_sim (class_id, sim_id),
+  INDEX idx_session (session_id),
+  FOREIGN KEY (session_id) REFERENCES student_sessions(id) ON DELETE CASCADE,
+  FOREIGN KEY (class_id) REFERENCES classes(id) ON DELETE SET NULL
+) ENGINE=InnoDB;
+
+-- Modulfreigabe pro Klasse
+CREATE TABLE IF NOT EXISTS class_modules (
+  class_id   INT UNSIGNED NOT NULL,
+  module_id  VARCHAR(16) NOT NULL,
+  enabled    BOOLEAN DEFAULT TRUE,
+  PRIMARY KEY (class_id, module_id),
+  FOREIGN KEY (class_id) REFERENCES classes(id) ON DELETE CASCADE
+) ENGINE=InnoDB;
+
+-- Demo-Lehrer anlegen (Passwort: "demo2026")
+INSERT IGNORE INTO teachers (id, username, password, display_name)
+VALUES (1, 'demo', '$2y$10$YQ8kXE5Bq3Dq1Z5VxGf1/.J9Cxj5xEqL8RyE3.zDZ1YCbYdLiK2Vy', 'Demo-Lehrkraft');
+
+-- Demo-Klasse
+INSERT IGNORE INTO classes (id, teacher_id, name, school_year, join_code)
+VALUES (1, 1, '1A', '2025/26', 'GEO1A');