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 # CalMiner
 
 A web application to plan mining projects and estimate costs, returns and profitability.
+
+## Tech Stack
+
+- **Backend**: Python 3.10+ (FastAPI)
+- **Database**: PostgreSQL
+- **Frontend**: (TBD)
+- **Testing**: pytest
+
+## Planned Features
+
+- **Scenario Management**: The database supports different scenarios for what-if analysis, with parent-child relationships between scenarios.
+- **Monte Carlo Simulation**: The system can perform Monte Carlo simulations for risk analysis and probabilistic forecasting.
+- **Stochastic Variables**: The model handles uncertainty by defining variables with probability distributions.
+- **Cost Tracking**: It tracks capital (`capex`) and operational (`opex`) expenditures.
+- **Consumption Tracking**: It monitors the consumption of resources like chemicals, fuel, water, and scrap materials.
+- **Production Output**: The database stores production results, including tons produced, recovery rates, and revenue.
+- **Process Parameters**: It allows for defining and storing various parameters for different processes and scenarios.
+- **Equipment Management**: The system manages equipment and their operational data.
+- **Maintenance Logging**: It includes a log for equipment maintenance events.
+
+## Database Objects
+
+The database is composed of several tables that store different types of information. All tables are under schema `bricsium_platform`. See `structure.sql` for full DDL. Here are some of the most important ones:
+
+- **CAPEX** — `bricsium_platform.capex`: Stores data on capital expenditures.
+- **OPEX** — `bricsium_platform.opex`: Contains information on operational expenditures.
+- **Chemical consumption** — `bricsium_platform.chemical_consumption`: Tracks the consumption of chemical reagents.
+- **Fuel consumption** — `bricsium_platform.fuel_consumption`: Records the amount of fuel consumed.
+- **Water consumption** — `bricsium_platform.water_consumption`: Monitors the use of water.
+- **Scrap consumption** — `bricsium_platform.scrap_consumption`: Tracks the consumption of scrap materials.
+- **Production output** — `bricsium_platform.production_output`: Stores data on production output, such as tons produced and recovery rates.
+- **Equipment operation** — `bricsium_platform.equipment_operation`: Contains operational data for each piece of equipment.
+- **Ore batch** — `bricsium_platform.ore_batch`: Stores information on ore batches, including their grade and other characteristics.
+- **Exchange rate** — `bricsium_platform.exchange_rate`: Contains currency exchange rates.
+- **Simulation result** — `bricsium_platform.simulation_result`: Stores the results of the Monte Carlo simulations.
+
+## Static Parameters
+
+These are values that are not expected to change frequently and are used for configuration purposes. Some examples include:
+
+- **Currencies**: `currency_code`, `currency_name`.
+- **Distribution types**: `distribution_name`.
+- **Units**: `unit_name`, `unit_symbol`, `unit_system`, `conversion_to_base`.
+- **Parameter categories**: `category_name`.
+- **Material types**: `type_name`, `category`.
+- **Chemical reagents**: `reagent_name`, `chemical_formula`.
+- **Fuel**: `fuel_name`.
+- **Water**: `water_type`.
+- **Scrap material**: `scrap_name`.
+
+## Variables
+
+These are dynamic data points that are recorded over time and used in calculations and simulations. Some examples include:
+
+- **CAPEX**: `amount`.
+- **OPEX**: `amount`.
+- **Chemical consumption**: `quantity`, `efficiency`, `waste_factor`.
+- **Fuel consumption**: `quantity`.
+- **Water consumption**: `quantity`.
+- **Scrap consumption**: `quantity`.
+- **Production output**: `tons_produced`, `recovery_rate`, `metal_content`, `metallurgical_loss`, `net_revenue`.
+- **Equipment operation**: `hours_operated`, `downtime_hours`.
+- **Ore batch**: `ore_grade`, `moisture`, `sulfur`, `chlorine`.
+- **Exchange rate**: `rate`.
+- **Parameter values**: `value`.
+- **Simulation result**: NPV (`npv`), IRR (`irr`), EBITDA (`ebitda`), `net_revenue`.
+- **Cementation parameters**: `temperature`, pH (`ph`), `reaction_time`, `copper_concentration`, `iron_surface_area`.
+- **Precipitate product**: `density`, `melting_point`, `boiling_point`.
diff --git a/docs/architecture.md b/docs/architecture.md
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+# Architecture Documentation
+
+## Overview
+
+CalMiner is a web application for planning mining projects, estimating costs, returns, and profitability. It uses Monte Carlo simulations for risk analysis and supports multiple scenarios.
+
+## System Components
+
+- **Frontend**: Web interface for user interaction (to be defined).
+- **Backend**: Python API server (e.g., FastAPI) handling business logic.
+- **Database**: PostgreSQL with schema `bricsium_platform` (see `structure.sql`).
+- **Simulation Engine**: Python-based Monte Carlo runs and stochastic calculations.
+
+## Data Flow
+
+1. User inputs scenario parameters via frontend.
+2. Backend validates and stores in database.
+3. Simulation engine runs Monte Carlo iterations using stochastic variables.
+4. Results stored in `simulation_result` table.
+5. Frontend displays outputs like NPV, IRR, EBITDA.
+
+## Database Architecture
+
+- Schema: `bricsium_platform`
+- Key tables: Scenarios, parameters, consumptions, outputs, simulations.
+- Relationships: Foreign keys link scenarios to parameters, consumptions, and results.
+
+## Next Steps
+
+- Define API endpoints.
+- Implement simulation logic.
+- Add authentication and user management.
diff --git a/docs/development_setup.md b/docs/development_setup.md
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+# Development Setup Guide
+
+## Prerequisites
+
+- Python (version 3.10+)
+- PostgreSQL (version 13+)
+- Git
+
+## Database Setup
+
+1. Install PostgreSQL and create a database named `calminer`.
+
+2. Create schema `bricsium_platform`:
+
+   ```sql
+   CREATE SCHEMA bricsium_platform;
+   ```
+
+3. Load the schema from `structure.sql`:
+
+   ```bash
+   psql -d calminer -f structure.sql
+   ```
+
+## Backend Setup
+
+1. Clone the repo.
+2. Create a virtual environment: `python -m venv .venv`
+3. Activate it: `.venv\Scripts\activate` (Windows) or `source .venv/bin/activate` (Linux/Mac)
+4. Install dependencies: `pip install -r requirements.txt`
+5. Set up environment variables (e.g., DB connection string in .env).
+6. Run migrations if any.
+7. Start server: `python main.py` or `uvicorn main:app --reload`
+
+## Frontend Setup
+
+(TBD - add when implemented)
+
+## Running Locally
+
+- Backend: `uvicorn main:app --reload`
+- Frontend: (TBD)
+
+## Testing
+
+- Run tests: `pytest`
diff --git a/docs/implementation_plan.md b/docs/implementation_plan.md
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+# Implementation Plan
+
+## Feature: Scenario Creation and Management
+
+### Scenario Implementation Steps
+
+1. Create `models/scenario.py` for DB interactions.
+2. Implement API endpoints in `routes/scenarios.py`: GET, POST, PUT, DELETE.
+3. Add frontend component `components/ScenarioForm.vue` for CRUD.
+4. Update `README.md` with API docs.
+
+## Feature: Parameter Input and Validation
+
+### Parameter Implementation Steps
+
+1. Define parameter schemas in `models/parameters.py`.
+2. Create validation middleware in `middleware/validation.py`.
+3. Build input form in `components/ParameterInput.vue`.
+4. Integrate with scenario management.
+
+## Feature: Monte Carlo Simulation Run
+
+### Simulation Implementation Steps
+
+1. Implement simulation logic in `services/simulation.py`.
+2. Add endpoint `POST /api/simulations/run`.
+3. Store results in `models/simulation_result.py`.
+4. Add progress tracking UI.
+
+## Feature: Basic Reporting
+
+### Reporting Implementation Steps
+
+1. Create report service `services/reporting.py`.
+2. Build dashboard component `components/Dashboard.vue`.
+3. Fetch data from simulation results.
+4. Add charts using Chart.js.
+
+## Next Steps
+
+- Assign issues in GitHub.
+- Estimate effort for each step.
+- Start with backend models.
diff --git a/docs/mvp.md b/docs/mvp.md
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+# MVP Features
+
+## Prioritized Features
+
+1. **Scenario Creation and Management** (High Priority): Allow users to create, edit, and delete scenarios. Rationale: Core functionality for what-if analysis.
+2. **Parameter Input and Validation** (High Priority): Input process parameters with validation. Rationale: Ensures data integrity for simulations.
+3. **Monte Carlo Simulation Run** (High Priority): Execute simulations and store results. Rationale: Key differentiator for risk analysis.
+4. **Basic Reporting** (Medium Priority): Display NPV, IRR, EBITDA from simulation results. Rationale: Essential for decision-making.
+5. **Cost Tracking Dashboard** (Medium Priority): Visualize CAPEX and OPEX. Rationale: Helps monitor expenses.
+6. **Consumption Monitoring** (Low Priority): Track resource consumption. Rationale: Useful for optimization.
+7. **User Authentication** (Medium Priority): Basic login/logout. Rationale: Security for multi-user access.
+8. **Export Results** (Low Priority): Export simulation data to CSV/PDF. Rationale: For external analysis.
+
+## Rationale for Prioritization
+
+- High: Core simulation and scenario features first.
+- Medium: Reporting and auth for usability.
+- Low: Nice-to-haves after basics.
diff --git a/docs/testing.md b/docs/testing.md
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+# Testing Strategy
+
+## Overview
+
+CalMiner will use a combination of unit, integration, and end-to-end tests to ensure quality.
+
+## Frameworks
+
+- **Backend**: pytest for unit and integration tests.
+- **Frontend**: (TBD) pytest with Selenium or Playwright.
+- **Database**: pytest fixtures with psycopg2 for DB tests.
+
+## Test Types
+
+- **Unit Tests**: Test individual functions/modules.
+- **Integration Tests**: Test API endpoints and DB interactions.
+- **E2E Tests**: (Future) Playwright for full user flows.
+
+## CI/CD
+
+- Use GitHub Actions for CI.
+- Run tests on pull requests.
+- Code coverage target: 80% (using pytest-cov).
+
+## Running Tests
+
+- Unit: `pytest tests/unit/`
+- Integration: `pytest tests/integration/`
+- All: `pytest`