Application Manager

[cyri113]

Application Manager

CRUD contract for applications.

Requirements

• general
  • should inherit the OpenZepplin AccessManager.
• interface
  • should define an Application struct with the following fields:
    • name (string)
    • account (address)
  • should define an external function createApplication
  • should define an external function updateApplication
  • should define an external function deleteApplication
  • should define an external function getApplication
  • should define an external function getApplications
  • should define an event CreateApplication
  • should define an event UpdateApplication
  • should define an event DeleteApplication
• constructor
  • should set the accessManager_ as a AccessManager
• state variables
  • should have a mapping applications from uint256 (application IDs) to Application structs.
  • should have a uint256 variable nextApplicationId to track the next application ID.
• createApplication
  • should accept name (string) and account (address) as inputs.
  • should increment nextApplicationId.
  • should create a new Application struct with the provided name and account and store it in the applications mapping with the key as the new applicationId.
  • should emit the ApplicationCreated event with the new application's details.
  • should only be callable by accounts with the ADMIN_ROLE.
• updateApplication
  • should accept applicationId (uint256), name (string), and account (address) as inputs.
  • should update the Application struct in the applications mapping with the provided applicationId to have the new name and account.
  • should emit the ApplicationUpdated event with the updated application's details.
  • should revert if the applicationId does not exist.
  • should only be callable by accounts with the ADMIN_ROLE.
• deleteApplication
  • should accept applicationId (uint256) as an input.
  • should remove the Application struct from the applications mapping with the provided applicationId.
  • should emit the ApplicationDeleted event with the deleted application's ID.
  • should revert if the applicationId does not exist.
  • should only be callable by accounts with the ADMIN_ROLE
• getApplication
  • should accept applicationId (uint256) as an input.
  • should return the name (string) and account (address) of the Application struct with the provided applicationId.
  • should revert if the applicationId does not exist
  • should be callable by any account
• getApplications
  • should accept start (uint256) and limit (uint256) as inputs.
  • should return an array of Application structs starting from the start index and containing up to limit entries.
  • should return fewer than limit entries if there are not enough applications.
  • should be callable by any account.