Merge pull request 'Added new cron to README' (#2) from dev into main

Reviewed-on: rainer/luanti-web#2

README.md

@@ -7,40 +7,51 @@ This system is designed from the ground up to be modular, easily configurable, a
 ## ✨ Features
 
 * **Automated Map Generation:** Leverages `minetestmapper` to create high-resolution PNG maps of your game worlds.
+* **Performant Image Processing:** Uses `vips`, a high-performance and memory-efficient library, to scale even huge maps (tested up to 64k x 64k pixels) for the web.
 * **Tiled Map Generation:** Uses `gdal2tiles.py` to create performant, zoomable map tiles for a smooth user experience.
-* **Dynamic Map Viewer:** Implements an interactive map viewer using [Leaflet.js](https://leafletjs.com/), powered by the generated map tiles.
+* **Dynamic Map Viewer:** Implements an interactive map viewer using **OpenLayers**, powered by the generated map tiles, including digital zoom beyond the highest resolution.
-* **Live Player Tracking:** Dynamically fetches and displays player locations as markers on the live map.
+* **Live Player Tracking:** Dynamically fetches and displays player locations as markers on the live map, including custom-styled popups and permanent name labels.
-* **Map Archive:** Automatically saves a daily snapshot of the map and makes it available through a dropdown viewer on the world detail page.
+* **Map Archive:** Automatically saves a daily snapshot of the map and makes it available through a toggle on the world detail page.
 * **Template-Driven Site Generation:** Builds all static HTML pages from simple, customizable templates.
-* **Flexible Configuration:** Configuration is easy with a central global config and a sub-config file for every of your worlds.
+* **Flexible Configuration:** Configuration is easy with a central global config and a `web.conf`-file for every of your worlds.
-* **Automation-Ready:** Designed for unattended execution via scheduling tools like cron.
+* **Automation-Ready:** Designed for unattended execution via scheduling tools like `cron`.
 
 ## 🔧 Prerequisites
 
 To run this system, the following software packages must be installed on your server:
 
 * **bash:** The scripting language used for the entire project.
-* **ImageMagick:** Required for `identify` (to read image dimensions) and `convert` (to resize images).
+* **vips:** A high-performance image processing library that replaces `convert` (ImageMagick).
+    * *Debian/Ubuntu Install:* `sudo apt-get install libvips-tools`
+* **ImageMagick:** Currently still required for the `identify` command (to read image dimensions).
     * *Debian/Ubuntu Install:* `sudo apt-get install imagemagick`
 * **GDAL/OGR:** Provides the `gdal2tiles.py` script for tile generation.
     * *Debian/Ubuntu Install:* `sudo apt-get install gdal-bin python3-gdal`
-* **minetestmapper:** The executable used to render maps from world data. This must be placed within the project directory.
+* **SQLite3:** The command-line tool for reading SQLite databases, required by `sync_players.sh`.
+    * *Debian/Ubuntu Install:* `sudo apt-get install sqlite3`
+* **bc:** The "basic calculator" command-line tool, required for calculations in `sync_players.sh`.
+    * *Debian/Ubuntu Install:* `sudo apt-get install bc`
+* **minetestmapper:** The executable used to render maps from world data. Must be placed within the project directory.
+* **iproute2:** Provides the `ss` command for `check_server_status.sh` (usually pre-installed on most systems).
 * **Web Server:** A web server like Nginx or Apache is needed to serve the generated static files.
 
+An included script (`check_dependencies.sh`) can automatically verify all important dependencies.
+
 ## ⚙️ Installation & Setup
 
-### 1. Clone the Repository
+### 1. Project Files
 
-Download the **latest build** from the [Releases-Page](https://git.geigernet.eu/rainer/luanti-web/releases) and save it to your server's base directory, such as `/opt/luweb/`.
+Download the **latest build** from the [Releases-Page](https://git.geigernet.eu/rainer/luanti-web/releases) and extract it to a base directory on your server, such as `/opt/luweb/`.
 
 OR
 
-Clone all project files to a base directory on your server.
+Clone the Git repository to a base directory.
 
-```
+```bash
 git clone https://git.geigernet.eu/rainer/luanti-web.git /opt/luweb
 cd /opt/luweb
-chmod +x generate_map.sh generate_site.sh
+# Make all scripts executable
+chmod +x generate_map.sh generate_site.sh check_server_status.sh check_dependencies.sh sync_players.sh
 ```
 
 ### 2. Global Configuration
@@ -50,53 +61,47 @@ The main configuration file is `config.sh`. You must edit this file to match you
 **Key variables in `config.sh`:**
 
 * `BASE_SCRIPT_DIR`: The root directory of the project (e.g., `/opt/luweb`).
-* `MINETESTMAPPER_WORLD_DATA_BASE_PATH`: The path to your Minetest/Luanti worlds' data directory (e.g., `<server-path>/worlds/`), docker compatible.
+* `MINETESTMAPPER_WORLD_DATA_BASE_PATH`: The path to your Minetest/Luanti worlds' data directory.
 * `WEB_ROOT_PATH`: The document root of your website where the generated files will be placed (e.g., `/var/www/your-domain.com/web`).
 * `LOG_DIR_BASE`: The directory where log files will be written (e.g., `/var/log/luweb`).
 
 ### 3. Per-World Configuration
 
-For each world you want to feature on the website, a `web.conf` file must exist within that world's data directory (e.g., `<server-path>/worlds/my_world/web.conf`). This file allows you to override global defaults with world-specific settings.
+The system is designed so that **only worlds with a `web.conf` file** will be displayed in the web frontend. This gives you full control over which worlds are publicly visible.
 
-A minimal `web.conf` could look like this and is automatically created for every detected world in your `MINETESTMAPPER_WORLD_DATA_BASE_PATH`:
+To add a world, copy the template `site_generator/examples/web.conf.template` into the data directory of the respective world (e.g., `<server-path>/worlds/my_world/web.conf`) and adjust the values.
-
-```bash
-# Display name for the world
-WORLD_DISPLAY_NAME="My Creative World"
-
-# Server connection details
-SERVER_ADDRESS="your-server.com"
-SERVER_PORT="30001"
-
-# A short description for the world overview page
-WORLD_SHORT_DESCRIPTION="A brief, catchy description of this world."
-
-# A detailed HTML description for the world's detail page
-WORLD_LONG_DESCRIPTION="<p>A longer description with <b>HTML</b> support.</p>"
-```
 
 ## 📂 Directory Structure
 
-The system expects the following directory structure:
+The system now uses a modular structure to improve maintainability:
 ```md
 /opt/luweb/
 ├── config.sh
 ├── generate_map.sh
 ├── generate_site.sh
+├── check_server_status.sh
+├── check_dependencies.sh
+├── sync_players.sh
 ├── minetestmapper (executable)
 ├── site_generator/
+│   ├── functions/
+│   │   ├── 01_utils.sh
+│   │   ├── 02_init.sh
+│   │   ├── 03_html_helpers.sh
+│   │   └── generators/
+│   │       ├── css_generator.sh
+│   │       ├── main_orchestrator.sh
+│   │       ├── static_pages_generator.sh
+│   │       ├── world_detail_generator.sh
+│   │       └── world_overview_generator.sh
 │   ├── templates/
 │   │   ├── world_detail_page.template
-│   │   ├── world_detail_archive.template
 │   │   └── ...
 │   └── examples/
 │       └── web.conf.template
 ├── web_content/
 │   ├── images/
-│   │   └── players/
 │   └── static/
-│       ├── startseite_content.html
-│       └── ...
 └── worldmaps_output/
     └── <world_name>/
         ├── map.png
@@ -105,38 +110,37 @@ The system expects the following directory structure:
 
 ## 🚀 Usage
 
-The scripts are designed to be run from the command line, either manually or via automated jobs.
+### 1. Map Generation
-
-### 1. Map and Tile Generation
-
-The `generate_map.sh` script creates the map, tiles, and archive images for a specific world. It must be called with the "world key" (the name of the world's directory) as an argument.
-
 ```bash
-# Generate map assets for the world located in the 'world' directory
+./generate_map.sh <world_key>
-./generate_map.sh world
 ```
 
 ### 2. Website Generation
-
-The `generate_site.sh` script builds the entire website (overview, detail pages, etc.). It scans all configured world directories and creates a detail page for each one.
-
 ```bash
-# Generate the complete website
 ./generate_site.sh
 ```
 
-### 3. Automation (Cronjob)
+### 3. Status & Player Sync
+```bash
+./check_server_status.sh
+./sync_players.sh <world_key>
+```
 
-For fully automatic operation, setting up cronjobs is recommended.
+### 4. Automation (Cronjob)
 
 **Example for `crontab -e`:**
-
 ```bash
-# Generate map assets for the 'world' every 30 minutes
+# Update player data every minute
-*/30 * * * * /opt/luweb/generate_map.sh world >> /var/log/luweb/cron.log 2>&1
+* * * * * /opt/luweb/sync_players.sh world >> /var/log/luweb/cron.log 2>&1
 
-# Re-build the website every 12 hours
+# Check server online status every 5 minutes
-* */12 * * * /opt/luweb/generate_site.sh >> /var/log/luweb/cron.log 2>&1
+*/5 * * * * /opt/luweb/check_server_status.sh >> /var/log/luweb/cron.log 2>&1
+
+# Generate map and tiles once per hour
+0 * * * * /opt/luweb/generate_map.sh world >> /var/log/luweb/cron.log 2>&1
+
+# Re-build the static site twice a day
+30 */12 * * * /opt/luweb/generate_site.sh >> /var/log/luweb/cron.log 2>&1
 ```
 
 ## 📄 License
@@ -161,5 +165,5 @@ DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
 OR OTHER DEALINGS IN THE SOFTWARE.
 
-## 👤 Authors
+## 👤 Autoren
 * **Rage87** (Main-Developer)