[Feat] Add Veganify Recipes

[philipbrembeck]

Description

Implement a function in the app that can transform standard recipes into vegan-friendly versions.

User Story

As a user interested in vegan cooking, I want to be able to input a regular recipe and receive a vegan version of it, so that I can easily adapt my favorite dishes to a plant-based diet.

Acceptance Criteria

1. The app provides a clear interface for users to input or select a recipe for veganization.
2. The veganify function successfully replaces non-vegan ingredients with suitable vegan alternatives.
3. The function maintains the overall structure and cooking instructions of the original recipe.
4. Nutritional balance is considered when making substitutions (e.g., ensuring protein content is maintained).
5. The veganified recipe is presented in a clear, easy-to-read format.

Technical Considerations

• Implement robust error handling for cases where veganization might not be straightforward.
• Ensure the function can handle various recipe formats and ingredient lists.
• Consider scalability for processing multiple recipes or handling high user traffic.

Possible Solutions

1. Rule-Based System

• Create a comprehensive database of ingredient substitutions.
• Implement logic to identify non-vegan ingredients and replace them based on predefined rules.
• Pros: More control over substitutions, easier to explain decisions.
• Cons: May require frequent updates, limited flexibility for complex recipes.

2. AI-Based Approach

• Utilize a language model trained on vegan cooking data to generate substitutions.
• Implement a neural network that can understand recipe contexts and suggest appropriate replacements.
• Pros: More flexible and adaptable to various recipes, potential for more creative solutions.
• Cons: May require significant training data, potential for unexpected outputs.

3. Hybrid Approach

• Combine a rule-based system for common substitutions with an AI model for more complex cases.
• Use AI to generate substitutions, then validate against a database of known good substitutions.
• Pros: Balances reliability with flexibility, can handle a wider range of recipes.
• Cons: More complex to implement and maintain.

Additional Considerations

• User feedback mechanism to improve substitution quality over time.
• Integration with existing recipe databases or APIs for a wider range of initial recipes.
• Ability to customize substitutions based on user preferences or dietary restrictions.

Definition of Done

• Function successfully veganizes at least 90% of test recipes correctly.
• UI/UX for recipe input and output is intuitive and user-friendly.
• Unit and integration tests are written and passing.