Refactor API structure: add internal handling, update templates, and remove deprecated files

public/templates/standard/entrys_frontend/entrys_frontend.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">
+  <script type="importmap">
+    {
+      "imports": {
+        "@material/web/": "https://esm.run/@material/web/"
+      }
+    }
+  </script>
+  <script type="module">
+    import '@material/web/all.js';
+    import {styles as typescaleStyles} from '@material/web/typography/md-typescale-styles.js';
+
+    document.adoptedStyleSheets.push(typescaleStyles.styleSheet);
+  </script>
+
+  <title>%appname% // Entrys</title>
+
+  <style>
+    :root {
+        --md-sys-color-primary: rgb(58, 58, 255);
+    }
+
+    p {
+        font-family: Verdana, Geneva, Tahoma, sans-serif;
+    }
+
+    hr {
+      border: 1px solid rgb(211, 211, 211);
+    }
+
+    .loader {
+      display: flex;
+      justify-content: center;
+      align-items: center;
+    }
+
+    #date {
+        color: gray;
+    }
+  </style>
+</head>
+<body>
+    <h1 class="md-typescale-display-large">%appname%</h1>
+    <md-filled-tonal-button id="entry_add">
+      Add Entry
+    </md-filled-tonal-button>
+    <h2 class="md-typescale-display-medium">All Entrys</h2>
+    %entrys%
+    <md-dialog id="add_entry_dialog">
+      <div slot="headline">
+        Add entry
+      </div>
+      <form slot="content" method="dialog">
+        <md-filled-text-field id="entry_name" label="Name"></md-filled-text-field><br><br>
+        <md-filled-text-field id="entry_text" label="Text" rows="5" style="resize: vertical;" type="textarea"></md-filled-text-field>
+        <div class="loader" id="loader" style="display: none;">
+          <md-circular-progress id="add_entry_load" indeterminate></md-circular-progress>
+        </div>
+        <p id="entry_return"></p>
+      </form>
+      <div slot="actions">
+        <md-filled-button id="entry_submit">Submit</md-filled-button>
+        <md-text-button id="entry_close">Close</md-text-button>
+      </div>
+    </md-dialog>
+    <script>
+      document.getElementById("entry_add").addEventListener("click", function() {
+        document.getElementById("add_entry_dialog").setAttribute("open", "");
+      });
+
+      document.getElementById("entry_close").addEventListener("click", function() {
+        document.getElementById("add_entry_dialog").removeAttribute("open");
+      });
+
+      document.getElementById("entry_submit").addEventListener("click", function() {
+        document.getElementById("entry_name").style.display = "none";
+        document.getElementById("entry_text").style.display = "none";
+        document.getElementById("entry_submit").style.display = "none";
+        document.getElementById("entry_close").style.display = "none";
+
+        document.getElementById("loader").style.display = "flex";
+
+        name = document.getElementById("entry_name").value;
+        text = document.getElementById("entry_text").value;
+
+        fetch("/api/entrys/add.php", {
+          method: "POST",
+          body: JSON.stringify({
+            name: name,
+            text: text
+          })
+        })
+        .then(response => response.json())
+        .then(data => {
+          document.getElementById("loader").style.display = "none";
+          if (data.status !== 200) {
+            document.getElementById("entry_return").innerHTML = "API returned an error: " + data.error_text;
+            document.getElementById("entry_close").style.display = "block";
+          }else{
+            document.getElementById("entry_return").innerHTML = "Success! Maybe your entry must be aproved by the owner.";
+            document.getElementById("entry_close").style.display = "block";
+          }
+        })
+        .catch(error => {
+          document.getElementById("loader").style.display = "none";
+          document.getElementById("entry_return").innerHTML = "There was an error: " + error;
+          document.getElementById("entry_close").style.display = "block";
+        });
+      });
+    </script>
+  </body>
+</html>

public/templates/standard/error/error.css

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+.icon {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    font-size: 100pt;
+}
+
+.text {
+    text-align: center;
+    font-family: Verdana, Geneva, Tahoma, sans-serif;
+}
+
+.code {
+    font-family: monospace;
+    background-color: rgb(226, 225, 225);
+    padding: 1px;
+    border-radius: 5px;
+}

public/templates/standard/error/error.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Error</title>
+    %css%
+</head>
+<body>
+    <div class="page-content">
+        <div class="icon">
+            ⚠️
+        </div>
+        <div class="text">
+            <h2>Error</h2>
+            <p>%error%</p>
+        </div>
+    </div>
+</body>
+</html>

public/templates/standard/login/login.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>%appname% // Login</title>
+    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">
+    <script type="importmap">
+        {
+            "imports": {
+                "@material/web/": "https://esm.run/@material/web/"
+            }
+        }
+    </script>
+    <script type="module">
+        import '@material/web/all.js';
+        import {styles as typescaleStyles} from '@material/web/typography/md-typescale-styles.js';
+
+        document.adoptedStyleSheets.push(typescaleStyles.styleSheet);
+    </script>
+    <style>
+        .page-content {
+            display: flex;
+            justify-content: center;
+            text-align: center;
+            align-items: center;
+        }
+
+        .center {
+            display: block;
+        }
+    </style>
+</head>
+<body>
+    <div class="page-content">
+        <div class="center">
+            <h1 class="md-typescale-display-large">%appname%</h1>
+            <h3 class="md-typescale-display-medium">Admin Panel Login</h3><br><br>
+            <p class="md-typescale-body-medium" id="error_msg" style="display: none;"></p>
+            <md-filled-text-field type="text" id="login_username" placeholder="Username"></md-filled-text-field><br><br>
+            <md-filled-text-field type="password" id="login_password" placeholder="Password"></md-filled-text-field><br><br>
+            <md-filled-button id="login_button">Login</md-filled-button>
+        </div>
+    </div>
+    <script>
+        document.getElementById("login_button").addEventListener("click", function() {
+            var username = document.getElementById("login_username").value;
+            var password = document.getElementById("login_password").value;
+
+            fetch("/api/auth/login.php", {
+                method:"POST",
+                body: JSON.stringify({
+                    username: username,
+                    password: password
+                }),
+                headers: {
+                    "Content-type": "application/json; charset=UTF-8"
+                }
+            })
+            .then(response => response.json())
+            .then(data => {
+                if (data.status == 200) {
+                    window.location.reload();
+                }else{
+                    document.getElementById("error_msg").innerHTML = data.error_text;
+                    document.getElementById("error_msg").style.display = "block";
+                }
+            })
+            .catch(error => {
+                document.getElementById("error_msg").innerHTML = error;
+                document.getElementById("error_msg").style.display = "block";
+            })
+        });
+    </script>
+</body>
+</html>

public/templates/standard/setup/setup.html

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+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap" rel="stylesheet">
+  <script type="importmap">
+    {
+      "imports": {
+        "@material/web/": "https://esm.run/@material/web/"
+      }
+    }
+  </script>
+  <script type="module">
+    import '@material/web/all.js';
+    import {styles as typescaleStyles} from '@material/web/typography/md-typescale-styles.js';
+
+    document.adoptedStyleSheets.push(typescaleStyles.styleSheet);
+  </script>
+
+  <title>Setup</title>
+
+  <style>
+    :root {
+        --md-sys-color-primary: rgb(58, 58, 255);
+    }
+
+    body {
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        text-align: center;
+    }
+
+    p {
+        font-family: Verdana, Geneva, Tahoma, sans-serif;
+    }
+  </style>
+</head>
+<body>
+    <div class="content">
+        <h1 class="md-typescale-display-medium">Hello!</h1>
+        <p>Welcome to your Guestbook! Enter here your prefered username and password.</p>
+        <md-filled-text-field label="Username" type="text" id="setup-username"></md-filled-text-field><br><br>
+        <md-filled-text-field label="Password" type="password" id="setup-password"></md-filled-text-field><br><br>
+        <md-filled-text-field label="Repeat Password" type="password" id="setup-password-repeat"></md-filled-text-field><br><br>
+        <md-filled-button id="submit-button">Save</md-filled-button>
+    </div>
+    <md-dialog id="http-dialog">
+        <div slot="headline">
+            Warning
+        </div>
+        <form slot="content" method="dialog">
+            Your browser is using http instead of https. That means your connection is not encrypted and everyone in your network can read your credentials.
+        </form>
+        <div slot="actions">
+            <md-text-button id="http-dialog-close-button">I know what i'm doing!</md-text-button>
+        </div>
+    </md-dialog>
+    <md-dialog id="error-dialog">
+        <div slot="headline">
+            Error
+        </div>
+        <form slot="content" method="dialog" id="error-dialog-text">
+            
+        </form>
+        <div slot="actions">
+            <md-filled-button id="close-button">Close</md-filled-button>
+        </div>
+    </md-dialog>
+    <md-dialog id="success-dialog">
+        <div slot="headline">
+            Success!
+        </div>
+        <form slot="content" method="dialog" id="error-dialog-text">
+            Your Guestbook is finaly configurated! You can find the admin Panel on <span id="success-admin-url"></span>.
+        </form>
+        <div slot="actions">
+            <md-filled-button id="success-dialog-home">Open Guestbook</md-filled-button>
+            <md-filled-button id="success-dialog-admin">Open Admin Panel</md-filled-button>
+        </div>
+    </md-dialog>
+    <script>
+        if (window.location.protocol == "http:") {
+            document.getElementById("http-dialog").setAttribute("open", "");
+            document.getElementById("http-dialog-close-button").addEventListener("click", function() {
+                document.getElementById("http-dialog").removeAttribute("open");
+            });
+        }
+
+        document.getElementById("submit-button").addEventListener("click", function() {
+            checkSetup();
+        });
+
+        document.getElementById("close-button").addEventListener("click", function() {
+            document.getElementById("error-dialog").removeAttribute("open");
+        });
+
+        document.getElementById("success-dialog-home").addEventListener("click", function() {
+            window.location.reload();
+        });
+
+        document.getElementById("success-dialog-admin").addEventListener("click", function() {
+            window.location.href = "/admin";
+        });
+
+        function checkSetup() {
+            const username = document.getElementById("setup-username").value;
+            const password = document.getElementById("setup-password").value;
+            const password_repeat = document.getElementById("setup-password-repeat").value;
+
+            // Check if Passwords match
+            if (password !== password_repeat) {
+                console.error("Passwords does not match");
+
+                document.getElementById("error-dialog-text").innerHTML = "Passwords does not match";
+                document.getElementById("error-dialog").setAttribute("open", "");
+            }
+
+            // Send data
+            fetch("/api/setup/save.php", {
+                method: "POST",
+                body: JSON.stringify({
+                    username: username,
+                    password: password,
+                    password_repeat: password_repeat
+                }),
+                headers: {
+                    "Content-type": "application/json; charset=UTF-8"
+                }
+            })
+            .then(response => response.json())
+            .then(data => {
+                if (data.status == 200) {
+                    document.getElementById("success-admin-url").innerHTML = window.location.href + "admin";
+                    document.getElementById("success-dialog").setAttribute("open", "");
+                }else{
+                    console.error("Server returned following message: " + data.error);
+
+                    document.getElementById("error-dialog-text").innerHTML = data.display_error;
+                    document.getElementById("error-dialog").setAttribute("open", "");
+                }
+            })
+        }
+    </script>
+</body>
+</html>

public/templates/standard/template.json

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+{
+    "error":{
+        "name":"error",
+        "dir_name":"error",
+        "html_file":"error.html",
+        "css_files":[
+            "error.css"
+        ]
+    },
+    "setup":{
+        "name":"setup",
+        "dir_name":"setup",
+        "html_file":"setup.html",
+        "css_files":[]
+    },
+    "entrys_frontend":{
+        "name":"entrys_frontend",
+        "dir_name":"entrys_frontend",
+        "html_file":"entrys_frontend.html",
+        "css_files":[]
+    },
+    "login":{
+        "name":"login",
+        "dir_name":"login",
+        "html_file":"login.html",
+        "css_files":[]
+    }
+}