Fantasy-Map-Generator/procedural/docs/Data_Mismatch_Task_Activity.md

# Data Mismatch Task Activity Log

This file logs all completed activities for fixing data mismatches in the Fantasy Map Generator.

## Task 1: Add Property Checks to All Modules

**Status**: Completed
**Date**: 2025-08-05

### Files Modified:

#### 1. src/engine/modules/heightmap-generator.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `graph` object and `graph.cells` structure
- Check for `config.heightmap.templateId` 
- Check for `config.debug` section

#### 2. src/engine/modules/lakes.js  
**Changes made**: Added property validation checks at the start of the `detectCloseLakes` function
- Check for `pack.cells` and `pack.features` structures
- Check for `pack.cells.c` (neighbors) and `pack.cells.f` (features)
- Check for `heights` array

#### 3. src/engine/modules/burgs-and-states.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `pack.cells.culture` from Cultures module
- Check for `pack.cells.s` (suitability) from Cell ranking
- Check for `pack.cultures` from Cultures module
- Check for `config.statesNumber`

#### 4. src/engine/modules/cultures-generator.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `pack.cells.s` (suitability) from Cell ranking
- Check for `config.culturesInput` and `config.culturesInSetNumber`
- Check for `config.debug` section

#### 5. src/engine/modules/biomes.js
**Changes made**: Added property validation checks at the start of the `define` function  
- Check for `pack.cells.h` (heights) from heightmap processing
- Check for `grid.cells.temp` and `grid.cells.prec` from geography module
- Check for `pack.cells.g` (grid reference) from pack generation
- Check for `config.debug` section

#### 6. src/engine/modules/features.js
**Changes made**: Added property validation checks to two functions:
- `markupGrid` function: Check for `grid.cells.h` (heights), `grid.cells.c` (neighbors), and `config.debug`
- `markupPack` function: Check for `pack.cells.h` (heights), `pack.cells.c` (neighbors), and `grid.features`

#### 7. src/engine/modules/river-generator.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `pack.cells.h` (heights) from heightmap processing
- Check for `pack.cells.t` (distance field) from features module  
- Check for `pack.features` from features module
- Check for `modules.Lakes` dependency
- Check for `config.debug` section

#### 8. src/engine/modules/religions-generator.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `pack.cells.culture` from Cultures module
- Check for `pack.cells.state` from BurgsAndStates module
- Check for `pack.cultures` from Cultures module
- Check for `config.religionsNumber` 
- Check for `config.debug` section

#### 9. src/engine/modules/provinces-generator.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `pack.cells.state` from BurgsAndStates module
- Check for `pack.cells.burg` from BurgsAndStates module
- Check for `pack.states` from BurgsAndStates module
- Check for `pack.burgs` from BurgsAndStates module
- Check for `config.debug` section

#### 10. src/engine/modules/routes-generator.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `pack.cells.burg` from BurgsAndStates module
- Check for `pack.burgs` from BurgsAndStates module
- Check for `pack.cells.h` (heights) from heightmap processing
- Check for `pack.cells.t` (distance field) from features module

#### 11. src/engine/modules/military-generator.js
**Changes made**: Added property validation checks at the start of the `generate` function
- Check for `pack.cells.state` from BurgsAndStates module
- Check for `pack.states` from BurgsAndStates module
- Check for `pack.burgs` from BurgsAndStates module
- Check for `config.debug` section

### Summary:
Added property validation checks to 11 critical engine modules. Each module now validates required dependencies and configuration sections at startup, providing clear error messages when properties are missing. This implements Fix 1 from the Data_Mismatch_Tasks.md plan - adding simple property checks to fail fast with helpful error messages.

All checks follow the pattern:
```javascript
// Check required properties exist
if (!requiredProperty) {
  throw new Error("ModuleName requires requiredProperty from DependencyModule");
}
```

This ensures clear dependency tracking and early error detection when modules are called with missing prerequisites.

## Task 2: Update Config Validator for Missing Fields

**Status**: Completed
**Date**: 2025-08-05

### Files Modified:

#### 1. src/viewer/config-validator.js
**Changes made**: Added simple required fields validation as specified in the task

**Functions added**:
- `validateRequiredFields(config, result)` - Validates specific required fields for modules
- `getCultureSetMax(culturesSet)` - Helper function to get maximum cultures for culture sets

**Required fields validated**:
- `cultures.culturesInSetNumber` - Validates based on culturesSet maximum
- `rivers.cellsCount` - Validates against graph.cellsDesired or defaults to 10000

**Implementation**: Added simple check for missing fields with warnings that show what the default values would be.

### Summary:
Updated the existing config validator to implement **Fix 2** from the Data_Mismatch_Tasks.md plan by adding the specific required fields validation as shown in the task example. The validator now checks for missing `cultures.culturesInSetNumber` and `rivers.cellsCount` fields and provides warnings when they are missing.

## Task 3: Update Documentation with Property Timeline

**Status**: Completed
**Date**: 2025-08-05

### Files Modified:

#### 1. docs/FMG Data Model.md
**Changes made**: Added comprehensive Property Availability Timeline section as specified in the task

**New section added**: "Property Availability Timeline"
- **Grid Properties section**: Documents when each grid property becomes available during generation
- **Pack Properties section**: Documents when each pack property becomes available during generation  
- **Module Execution Flow**: Added mermaid flowchart diagram showing complete module execution sequence

**Properties documented**:
- Grid properties: `cells.h`, `cells.f`, `cells.t`, `cells.temp`, `cells.prec`
- Pack properties: `cells.h`, `cells.f`, `cells.t`, `cells.fl`, `cells.r`, `cells.biome`, `cells.s`, `cells.pop`, `cells.culture`, `cells.burg`, `cells.state`, `cells.religion`, `cells.province`

**Mermaid diagram**: Visual flowchart showing the complete generation pipeline from initial grid through all modules to final map data, with annotations showing what properties each module adds.

### Summary:
Implemented **Fix 3** from the Data_Mismatch_Tasks.md plan by adding the Property Availability Timeline section to the existing documentation. This addresses the "Pack/Grid structure differences" issue by clearly documenting when each property becomes available during the generation process.

The documentation now provides:
1. **Clear reference for developers** - Shows exactly when each property is available
2. **Module dependency tracking** - Visual flow shows which modules depend on others
3. **Pack vs Grid clarification** - Distinguishes between grid (coarse mesh) and pack (refined mesh) properties
4. **Complete generation pipeline** - Mermaid diagram shows the full execution flow from main.js

This helps developers understand data availability and prevents undefined reference errors by showing the exact timeline of when properties are added to the data structures.

## Task 4: Add Requirement Comments to All Modules

**Status**: Completed
**Date**: 2025-08-05

### Files Modified:

#### 1. src/engine/modules/heightmap-generator.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: graph.cells, config.heightmap.templateId, config.debug
- **PROVIDES**: grid.cells.h (height values)

#### 2. src/engine/modules/lakes.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `detectCloseLakes` function
- **REQUIRES**: pack.cells, pack.features, pack.cells.c, pack.cells.f, heights array
- **PROVIDES**: Updated pack.features with closed property

#### 3. src/engine/modules/features.js
**Changes made**: Added JSDoc-style requirement comment blocks to both main functions
- **markupGrid REQUIRES**: grid.cells.h, grid.cells.c, config.debug
- **markupGrid PROVIDES**: grid.cells.f, grid.cells.t, grid.features
- **markupPack REQUIRES**: pack.cells.h, pack.cells.c, grid.features
- **markupPack PROVIDES**: pack.cells.f, pack.cells.t, pack.features

#### 4. src/engine/modules/biomes.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `define` function
- **REQUIRES**: pack.cells.h, grid.cells.temp, grid.cells.prec, pack.cells.g, config.debug
- **PROVIDES**: pack.cells.biome

#### 5. src/engine/modules/cultures-generator.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: pack.cells.s, config.culturesInput, config.culturesInSetNumber
- **PROVIDES**: pack.cells.culture, pack.cultures

#### 6. src/engine/modules/burgs-and-states.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: pack.cells.culture, pack.cells.s, pack.cultures, config.statesNumber
- **PROVIDES**: pack.burgs, pack.states, pack.cells.burg, pack.cells.state

#### 7. src/engine/modules/river-generator.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: pack.cells.h, pack.cells.t, pack.features, modules.Lakes, config.debug
- **PROVIDES**: pack.cells.fl, pack.cells.r, pack.cells.conf

#### 8. src/engine/modules/religions-generator.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: pack.cells.culture, pack.cells.state, pack.cultures, config.religionsNumber, config.debug
- **PROVIDES**: pack.cells.religion, pack.religions

#### 9. src/engine/modules/provinces-generator.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: pack.cells.state, pack.cells.burg, pack.states, pack.burgs, config.debug
- **PROVIDES**: pack.cells.province, pack.provinces

#### 10. src/engine/modules/routes-generator.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: pack.cells.burg, pack.burgs, pack.cells.h, pack.cells.t
- **PROVIDES**: pack.routes, pack.cells.routes

#### 11. src/engine/modules/military-generator.js
**Changes made**: Added JSDoc-style requirement comment block at the top of the `generate` function
- **REQUIRES**: pack.cells.state, pack.states, pack.burgs, config.debug
- **PROVIDES**: pack.states[].military

### Summary:
Implemented **Fix 4** from the Data_Mismatch_Tasks.md plan by adding requirement comments to all 11 major engine modules. Each module now has clear JSDoc-style documentation at the top of its main function showing:

1. **Self-documenting modules** - Each module clearly states what it requires and provides
2. **No runtime overhead** - Comments are compile-time only and don't affect performance
3. **Clear for developers** - Easy to understand dependencies at a glance
4. **Dependency tracking** - Shows exact relationships between modules

The comment format follows the task specification:
```javascript
/**
 * Module description
 *
 * REQUIRES:
 *   - dependency1 (from source module)
 *   - dependency2 (from source module)
 *
 * PROVIDES:
 *   - output1 (what this module adds)
 *   - output2 (what this module adds)
 */
```

This addresses the "Module dependencies" issue by making all dependencies explicit and self-documenting, complementing the runtime property checks from Task 1.