<?php
require_once __DIR__ . '/../config.php';

function db_connect() {
    $conn = new mysqli(DB_HOST, DB_USER, DB_PASS, DB_NAME);
    if ($conn->connect_error) {
        die(json_encode(["error" => "Datenbankverbindung fehlgeschlagen: " . $conn->connect_error]));
    }
    return $conn;
}

function get_all_recipes() {
    $conn = db_connect();
    $sql = "SELECT Id, Title, Description, ImagePath FROM Recipes";
    $result = $conn->query($sql);

    $recipes = [];
    while ($row = $result->fetch_assoc()) {
        $recipes[] = [
            'Id' => (int)$row['Id'],
            'Title' => $row['Title'],
            'Description' => $row['Description'],
            'ImagePath' => $row['ImagePath']
        ];
    }

    $conn->close();
    return json_encode($recipes);
}

function get_recipe_by_id($recipeId) {
    $conn = db_connect();
    $recipeId = (int)$recipeId;

    // Lade die Basisinformationen des Rezepts
    $sql = "SELECT * FROM `Recipes` WHERE `Id` = $recipeId";
    $result = $conn->query($sql);
    $recipe = $result->fetch_assoc();

    if (!$recipe) {
        $conn->close();
        return json_encode(['error' => 'Rezept nicht gefunden']);
    }

    $recipeDetails = [
        'Id' => (int)$recipe['Id'],
        'Title' => $recipe['Title'],
        'Description' => $recipe['Description'],
        'ImagePath' => $recipe['ImagePath'],
        'Rating' => (float)$recipe['Rating'],
        'UserId' => (int)$recipe['UserId'],
        'Servings' => (int)$recipe['Servings'],
        'CreatedAt' => $recipe['CreatedAt']
    ];

    // Lade die Anweisungen
    $instructionsSql = "SELECT StepNumber, Instruction FROM RecipeInstructions WHERE RecipeId = $recipeId ORDER BY StepNumber";
    $instructionsResult = $conn->query($instructionsSql);
    $instructions = [];
    while ($instructionRow = $instructionsResult->fetch_assoc()) {
        $instructions[] = [
            'StepNumber' => (int)$instructionRow['StepNumber'],
            'InstructionText' => $instructionRow['Instruction']
        ];
    }
    $recipeDetails['Instructions'] = $instructions;

    // Lade die Zutaten
    $ingredientsSql = "
    SELECT i.Quantity, md.Name AS Unit, i.Name
    FROM Ingredients i
    LEFT JOIN MasterData md ON i.UnitId = md.Id
    WHERE i.RecipeId = $recipeId
    ";
    $ingredientsResult = $conn->query($ingredientsSql);
    $ingredients = [];
    while ($ingredientRow = $ingredientsResult->fetch_assoc()) {
        $ingredients[] = [
            'Quantity' => (float)$ingredientRow['Quantity'],
            'Unit' => $ingredientRow['Unit'], // Verknüpfte Einheit
            'Name' => $ingredientRow['Name']
        ];
    }
    $recipeDetails['Ingredients'] = $ingredients;


    $conn->close();
    return json_encode($recipeDetails);
}


function create_recipe() {
    // Gleiche Logik wie im vorherigen Beispiel
}

function update_recipe($id) {
    // Gleiche Logik wie im vorherigen Beispiel
}

function delete_recipe($id) {
    // Gleiche Logik wie im vorherigen Beispiel
}
?>