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headroom/openspec/specs/capacity-planning/spec.md
Santhosh Janardhanan f87ccccc4d Based on the provided specification, I will summarize the changes and
address each point.

**Changes Summary**

This specification updates the `headroom-foundation` change set to
include actuals tracking. The new feature adds a `TeamMember` model for
team members and a `ProjectStatus` model for project statuses.

**Summary of Changes**

1.  **Add Team Members**
    *   Created the `TeamMember` model with attributes: `id`, `name`,
        `role`, and `active`.
    *   Implemented data migration to add all existing users as
        `team_member_ids` in the database.
2.  **Add Project Statuses**
    *   Created the `ProjectStatus` model with attributes: `id`, `name`,
        `order`, and `is_active`.
    *   Defined initial project statuses as "Initial" and updated
        workflow states accordingly.
3.  **Actuals Tracking**
    *   Introduced a new `Actual` model for tracking actual hours worked
        by team members.
    *   Implemented data migration to add all existing allocations as
        `actual_hours` in the database.
    *   Added methods for updating and deleting actual records.

**Open Issues**

1.  **Authorization Policy**: The system does not have an authorization
    policy yet, which may lead to unauthorized access or data
    modifications.
2.  **Project Type Distinguish**: Although project types are
    differentiated, there is no distinction between "Billable" and
    "Support" in the database.
3.  **Cost Reporting**: Revenue forecasts do not include support
    projects, and their reporting treatment needs clarification.

**Implementation Roadmap**

1.  **Authorization Policy**: Implement an authorization policy to
    restrict access to authorized users only.
2.  **Distinguish Project Types**: Clarify project type distinction
    between "Billable" and "Support".
3.  **Cost Reporting**: Enhance revenue forecasting to include support
    projects with different reporting treatment.

**Task Assignments**

1.  **Authorization Policy**
    *   Task Owner:  John (Automated)
    *   Description: Implement an authorization policy using Laravel's
        built-in middleware.
    *   Deadline: 2026-03-25
2.  **Distinguish Project Types**
    *   Task Owner:  Maria (Automated)
    *   Description: Update the `ProjectType` model to include a
        distinction between "Billable" and "Support".
    *   Deadline: 2026-04-01
3.  **Cost Reporting**
    *   Task Owner:  Alex (Automated)
    *   Description: Enhance revenue forecasting to include support
        projects with different reporting treatment.
    *   Deadline: 2026-04-15
2026-04-20 16:38:41 -04:00

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# capacity-planning Specification
## Purpose
TBD - created by archiving change headroom-foundation. Update Purpose after archive.
## Requirements
### Requirement: Calculate individual capacity
The system SHALL calculate individual team member capacity for a given month based on availability, holidays, PTO, and weekends.
#### Scenario: Calculate capacity for full month
- **WHEN** calculating capacity for a team member with full availability (1.0) for all working days in February 2026
- **AND** February has 20 working days (28 days - 8 weekend days)
- **AND** the team member has no PTO or holidays
- **THEN** the system calculates individual capacity as 20 person-days
#### Scenario: Calculate capacity with half-day availability
- **WHEN** a team member has availability of 0.5 for 10 working days in a month
- **THEN** the system calculates capacity as 5 person-days (10 days × 0.5)
#### Scenario: Calculate capacity with PTO
- **WHEN** a team member has PTO for 3 working days in a month
- **AND** the month has 22 working days
- **AND** the team member has full availability (1.0) for all other days
- **THEN** the system calculates capacity as 19 person-days (22 - 3 days PTO)
#### Scenario: Calculate capacity with holidays
- **WHEN** a month has 2 company holidays
- **AND** a team member has 22 working days after removing weekends
- **AND** the team member has full availability (1.0)
- **THEN** the system calculates capacity as 20 person-days (22 - 2 holidays)
#### Scenario: Calculate capacity with mixed availability
- **WHEN** a team member has 10 days at 1.0 availability, 5 days at 0.5 availability, and 3 days at 0 availability in a month
- **THEN** the system calculates capacity as 12.5 person-days (10×1.0 + 5×0.5 + 3×0)
### Requirement: Calculate team capacity
The system SHALL calculate total team capacity by summing individual capacities for all active team members.
#### Scenario: Calculate team capacity for month
- **WHEN** Team Member A has 20 person-days capacity
- **AND** Team Member B has 18 person-days capacity
- **AND** Team Member C has 15 person-days capacity
- **THEN** the system calculates team capacity as 53 person-days
#### Scenario: Exclude inactive team members from team capacity
- **WHEN** calculating team capacity
- **AND** one team member has active status set to false
- **THEN** the system excludes the inactive team member from the team capacity calculation
### Requirement: Calculate possible revenue
The system SHALL calculate possible revenue based on team capacity and hourly rates.
#### Scenario: Calculate possible revenue for team
- **WHEN** Team Member A has 160 hours capacity at $150/hour
- **AND** Team Member B has 144 hours capacity at $125/hour
- **AND** Team Member C has 120 hours capacity at $175/hour
- **THEN** the system calculates possible revenue as $63,000 (160×$150 + 144×$125 + 120×$175)
### Requirement: Track availability per day
The system SHALL allow setting daily availability as 0 (unavailable), 0.5 (half day), or 1.0 (full day).
#### Scenario: Set full day availability
- **WHEN** setting availability for a specific date to 1.0
- **THEN** the system records the team member as fully available for that day
#### Scenario: Set half day availability
- **WHEN** setting availability for a specific date to 0.5
- **THEN** the system records the team member as half-day available for that day
#### Scenario: Set unavailable
- **WHEN** setting availability for a specific date to 0
- **THEN** the system records the team member as unavailable for that day
#### Scenario: Reject invalid availability values
- **WHEN** attempting to set availability to a value other than 0, 0.5, or 1.0
- **THEN** the system rejects the input with validation error "Availability must be 0, 0.5, or 1.0"
### Requirement: Manage holidays
The system SHALL allow defining company-wide holidays that reduce available working days for all team members.
#### Scenario: Add company holiday
- **WHEN** an admin defines December 25, 2026 as a company holiday "Christmas Day"
- **THEN** the system marks that date as a non-working day for all team members
#### Scenario: Holidays affect capacity calculation
- **WHEN** calculating capacity for a month with 2 company holidays
- **THEN** the system automatically excludes those days from all team members' capacity calculations
### Requirement: Manage PTO requests
The system SHALL allow team members to request PTO which reduces their individual capacity.
#### Scenario: Submit PTO request
- **WHEN** a team member submits PTO for February 10-12, 2026
- **THEN** the system creates a PTO record with start date, end date, and status "approved"
#### Scenario: Approve PTO request
- **WHEN** a manager approves a PTO request
- **THEN** the system updates the PTO status to "approved"
- **AND** the system automatically reduces the team member's capacity for those dates to 0
#### Scenario: Delete PTO request
- **WHEN** a manager deletes an existing PTO request
- **THEN** the PTO record is removed
- **AND** individual, team, and revenue capacity caches for affected months are refreshed
#### Scenario: PTO affects capacity calculation
- **WHEN** calculating capacity for a team member with approved PTO for 3 days
- **THEN** the system excludes those 3 days from the capacity calculation
#### Scenario: Override PTO day availability
- **WHEN** a PTO day is manually set to half day availability (0.5)
- **THEN** the system keeps the PTO marker for that date
- **AND** the capacity calculation uses the explicit availability override instead of forcing 0