{ "$schema": "mantara.schema.v1", "system_name": "Todo Task Management Application", "schema_name": "ai_sch_20260513_094958", "description": "A comprehensive task organization system for managing personal and professional tasks.", "menus": [ { "menu_id": 1, "menu_name": "User Management", "sequence_number": 1, "description": "Manage user accounts, profiles, and permissions.", "submenus": [ { "submenu_id": 101, "submenu_name": "User Registration", "sequence_number": 1, "description": "Handles user registration and account creation.", "tables": [ { "table_name": "users", "comment": "Stores user account information and preferences.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 101 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "email", "type": "VARCHAR(255)", "constraints": "NOT NULL UNIQUE", "comment": "User's email address, used for login and notifications." }, { "name": "password_hash", "type": "VARCHAR(255)", "constraints": "NOT NULL", "comment": "Stores bcrypt hash of the user's password." }, { "name": "full_name", "type": "VARCHAR(255)", "constraints": "NOT NULL", "comment": "User's full name." }, { "name": "is_active", "type": "BOOLEAN", "constraints": "NOT NULL DEFAULT true", "comment": "Indicates if the user's account is active." }, { "name": "is_admin", "type": "BOOLEAN", "constraints": "NOT NULL DEFAULT false", "comment": "Indicates if the user has admin privileges." }, { "name": "email_verified", "type": "BOOLEAN", "constraints": "NOT NULL DEFAULT false", "comment": "Indicates if the user's email has been verified." }, { "name": "email_verified_at", "type": "TIMESTAMP", "comment": "Timestamp when the user's email was verified." }, { "name": "last_login_at", "type": "TIMESTAMP", "comment": "Timestamp of the user's last login." }, { "name": "preferences", "type": "JSONB", "comment": "User's preferences stored in JSON format." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ] } ] }, { "submenu_id": 102, "submenu_name": "User Profile Management", "sequence_number": 2, "description": "Allows users to manage their profile information and settings." } ] }, { "menu_id": 2, "menu_name": "Task Management", "sequence_number": 2, "description": "Manage tasks, subtasks, and task-related operations.", "submenus": [ { "submenu_id": 201, "submenu_name": "Task Creation", "sequence_number": 1, "description": "Handles the creation of new tasks.", "tables": [ { "table_name": "tasks", "comment": "Stores task details and metadata.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 201 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user who owns the task." }, { "name": "list_id", "type": "UUID", "constraints": "REFERENCES ttma.lists(id) ON DELETE SET NULL", "comment": "References the list to which the task belongs." }, { "name": "title", "type": "VARCHAR(500)", "constraints": "NOT NULL", "comment": "Title of the task." }, { "name": "description", "type": "TEXT", "comment": "Detailed description of the task." }, { "name": "status", "type": "VARCHAR(50)", "constraints": "NOT NULL DEFAULT 'not_started' CHECK (status IN ('not_started', 'in_progress', 'completed', 'cancelled', 'on_hold'))", "comment": "Current status of the task." }, { "name": "priority", "type": "VARCHAR(50)", "constraints": "NOT NULL DEFAULT 'medium' CHECK (priority IN ('low', 'medium', 'high', 'urgent'))", "comment": "Priority level of the task." }, { "name": "due_date", "type": "TIMESTAMP", "comment": "Due date and time for the task." }, { "name": "completed_at", "type": "TIMESTAMP", "comment": "Timestamp when the task was completed." }, { "name": "is_completed", "type": "BOOLEAN", "constraints": "NOT NULL DEFAULT false", "comment": "Indicates if the task is completed." }, { "name": "sort_order", "type": "INTEGER", "constraints": "NOT NULL DEFAULT 0", "comment": "Order of the task in the list." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" }, { "column": "list_id", "references": "ttma.lists(id)", "on_delete": "SET NULL" } ] } ] }, { "submenu_id": 202, "submenu_name": "Subtask Management", "sequence_number": 2, "description": "Handles the creation and management of subtasks.", "tables": [ { "table_name": "subtasks", "comment": "Stores subtask details and metadata.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 202 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "parent_task_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.tasks(id) ON DELETE CASCADE", "comment": "References the parent task to which the subtask belongs." }, { "name": "title", "type": "VARCHAR(500)", "constraints": "NOT NULL", "comment": "Title of the subtask." }, { "name": "description", "type": "TEXT", "comment": "Detailed description of the subtask." }, { "name": "is_completed", "type": "BOOLEAN", "constraints": "NOT NULL DEFAULT false", "comment": "Indicates if the subtask is completed." }, { "name": "completed_at", "type": "TIMESTAMP", "comment": "Timestamp when the subtask was completed." }, { "name": "sort_order", "type": "INTEGER", "constraints": "NOT NULL DEFAULT 0", "comment": "Order of the subtask in the parent task." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "parent_task_id", "references": "ttma.tasks(id)", "on_delete": "CASCADE" } ] } ] }, { "submenu_id": 203, "submenu_name": "Task Tagging", "sequence_number": 3, "description": "Manages the association of tags with tasks.", "tables": [ { "table_name": "task_tags", "comment": "Associates tags with tasks for categorization.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 203 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "task_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.tasks(id) ON DELETE CASCADE", "comment": "References the task to which the tag is applied." }, { "name": "tag_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.tags(id) ON DELETE CASCADE", "comment": "References the tag applied to the task." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "task_id", "references": "ttma.tasks(id)", "on_delete": "CASCADE" }, { "column": "tag_id", "references": "ttma.tags(id)", "on_delete": "CASCADE" } ] } ] } ] }, { "menu_id": 3, "menu_name": "Collaboration", "sequence_number": 3, "description": "Facilitates task sharing and collaborative features.", "submenus": [ { "submenu_id": 301, "submenu_name": "Task Sharing", "sequence_number": 1, "description": "Manages sharing of tasks between users.", "tables": [ { "table_name": "shares", "comment": "Stores information about task sharing between users.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 301 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "task_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.tasks(id) ON DELETE CASCADE", "comment": "References the task being shared." }, { "name": "owner_user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user who owns the task." }, { "name": "shared_with_user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user with whom the task is shared." }, { "name": "permission_level", "type": "VARCHAR(50)", "constraints": "NOT NULL DEFAULT 'view' CHECK (permission_level IN ('view', 'comment', 'edit'))", "comment": "Level of access granted to the shared user." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "task_id", "references": "ttma.tasks(id)", "on_delete": "CASCADE" }, { "column": "owner_user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" }, { "column": "shared_with_user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" } ] } ] }, { "submenu_id": 302, "submenu_name": "Comments", "sequence_number": 2, "description": "Handles comments on tasks for collaboration.", "tables": [ { "table_name": "comments", "comment": "Stores comments made on tasks by users.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 302 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "task_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.tasks(id) ON DELETE CASCADE", "comment": "References the task to which the comment is attached." }, { "name": "user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user who made the comment." }, { "name": "content", "type": "TEXT", "constraints": "NOT NULL", "comment": "Content of the comment." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "task_id", "references": "ttma.tasks(id)", "on_delete": "CASCADE" }, { "column": "user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" } ] } ] } ] }, { "menu_id": 4, "menu_name": "Notifications and Activity", "sequence_number": 4, "description": "Manage notifications and activity logs for user actions.", "submenus": [ { "submenu_id": 401, "submenu_name": "Notifications", "sequence_number": 1, "description": "Handles user notifications for task-related events.", "tables": [ { "table_name": "notifications", "comment": "Stores notifications sent to users about task events.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 401 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user receiving the notification." }, { "name": "task_id", "type": "UUID", "constraints": "REFERENCES ttma.tasks(id) ON DELETE CASCADE", "comment": "References the task related to the notification." }, { "name": "notification_type", "type": "VARCHAR(100)", "constraints": "NOT NULL CHECK (notification_type IN ('task_assigned', 'task_shared', 'task_due_soon', 'task_overdue', 'comment_added', 'task_completed', 'task_updated', 'mention'))", "comment": "Type of notification event." }, { "name": "title", "type": "VARCHAR(500)", "constraints": "NOT NULL", "comment": "Title of the notification." }, { "name": "message", "type": "TEXT", "constraints": "NOT NULL", "comment": "Detailed message of the notification." }, { "name": "is_read", "type": "BOOLEAN", "constraints": "NOT NULL DEFAULT false", "comment": "Indicates if the notification has been read." }, { "name": "read_at", "type": "TIMESTAMP", "comment": "Timestamp when the notification was read." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" }, { "column": "task_id", "references": "ttma.tasks(id)", "on_delete": "CASCADE" } ] } ] }, { "submenu_id": 402, "submenu_name": "Activity Logs", "sequence_number": 2, "description": "Records actions performed on tasks for audit purposes.", "tables": [ { "table_name": "activity_logs", "comment": "Stores logs of actions performed on tasks by users.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 402 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "task_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.tasks(id) ON DELETE CASCADE", "comment": "References the task related to the activity." }, { "name": "user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user who performed the action." }, { "name": "action_type", "type": "VARCHAR(100)", "constraints": "NOT NULL CHECK (action_type IN ('created', 'updated', 'deleted', 'completed', 'reopened', 'commented', 'shared', 'status_changed', 'priority_changed', 'due_date_changed', 'assigned', 'attachment_added', 'attachment_removed'))", "comment": "Type of action performed." }, { "name": "description", "type": "TEXT", "constraints": "NOT NULL", "comment": "Description of the action performed." }, { "name": "metadata", "type": "JSONB", "comment": "Additional metadata related to the action." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "task_id", "references": "ttma.tasks(id)", "on_delete": "CASCADE" }, { "column": "user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" } ] } ] } ] }, { "menu_id": 5, "menu_name": "Organization", "sequence_number": 5, "description": "Manage lists, tags, and task organization features.", "submenus": [ { "submenu_id": 501, "submenu_name": "List Management", "sequence_number": 1, "description": "Handles creation and management of task lists.", "tables": [ { "table_name": "lists", "comment": "Stores lists for organizing tasks.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 501 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user who owns the list." }, { "name": "name", "type": "VARCHAR(255)", "constraints": "NOT NULL", "comment": "Name of the list." }, { "name": "description", "type": "TEXT", "comment": "Description of the list." }, { "name": "color", "type": "VARCHAR(50)", "comment": "Color associated with the list for UI purposes." }, { "name": "sort_order", "type": "INTEGER", "constraints": "NOT NULL DEFAULT 0", "comment": "Order of the list in the user's sidebar." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" } ] } ] }, { "submenu_id": 502, "submenu_name": "Tag Management", "sequence_number": 2, "description": "Handles creation and management of tags for tasks.", "tables": [ { "table_name": "tags", "comment": "Stores tags for categorizing tasks.", "columns": [ { "name": "id", "type": "UUID", "constraints": "PRIMARY KEY DEFAULT gen_random_uuid()" }, { "name": "submenu_id", "type": "INT", "constraints": "DEFAULT 502 NOT NULL REFERENCES ttma.submenu(submenu_id)" }, { "name": "user_id", "type": "UUID", "constraints": "NOT NULL REFERENCES ttma.users(id) ON DELETE CASCADE", "comment": "References the user who owns the tag." }, { "name": "name", "type": "VARCHAR(100)", "constraints": "NOT NULL", "comment": "Name of the tag." }, { "name": "color", "type": "VARCHAR(50)", "comment": "Color associated with the tag for UI purposes." }, { "name": "created_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" }, { "name": "updated_at", "type": "TIMESTAMP", "constraints": "NOT NULL DEFAULT CURRENT_TIMESTAMP" } ], "foreign_keys": [ { "column": "user_id", "references": "ttma.users(id)", "on_delete": "CASCADE" } ] } ] } ] } ], "assumptions": [ "Each user can create multiple lists and tags for task organization.", "Tasks can be shared with multiple users with varying permission levels.", "Notifications are triggered by task-related events and user actions." ], "open_questions": [ "Should the system support recurring tasks?", "Is there a need for role-based access control beyond admin and standard user?" ] }