# Sprint Status - Entropyk
# Last Updated: 2026-04-28 (story 20-1 implementation)
# Project: Entropyk
# Project Key: NOKEY
# Tracking System: file-system
# Story Location: _bmad-output/implementation-artifacts
#
# ORGANIZED BY BUSINESS PILLARS (not historical epics)
# Priority order: P4 (Solver) → P5 (Interfaces) → P6 (Applications)
# See: _bmad-output/planning-artifacts/pillars.md for full pillar definitions
# See: _bmad-output/planning-artifacts/epic-restructuring.md for migration rationale
#
# STATUS DEFINITIONS:
# ==================
# Story Status:
#   - backlog: Story only exists in epic file
#   - ready-for-dev: Story file created in stories folder
#   - in-progress: Developer actively working on implementation
#   - review: Ready for code review (via Dev's code-review workflow)
#   - done: Story completed
#
# WORKFLOW NOTES:
# ===============
# - File is read top-to-bottom by BMAD: first matching status = next action
# - epic-X keys are kept for BMAD workflow compatibility (do not remove)
# - Stories are grouped by pillar; within each pillar: active → backlog → done
# - SM creates next story after previous one is 'done' to incorporate learnings
# - Dev moves story to 'review', then runs code-review (fresh context recommended)

generated: 2026-02-22
project: Entropyk
project_key: NOKEY
tracking_system: file-system
story_location: _bmad-output/implementation-artifacts

development_status:
  # ═══════════════════════════════════════════════════════════════
  # EPIC STATUS (required by BMAD — epic-X keys must stay here)
  # ═══════════════════════════════════════════════════════════════
  epic-1: done
  epic-2: done
  epic-3: done
  epic-4: done
  epic-5: in-progress
  epic-6: in-progress
  epic-7: in-progress
  epic-8: done
  epic-9: done
  epic-10: in-progress
  epic-11: in-progress
  epic-12: in-progress
  epic-13: in-progress
  epic-14: in-progress
  epic-15: in-progress
  epic-16: backlog
  epic-17: backlog
  epic-18: backlog
  epic-19: in-progress
  epic-20: in-progress

  # ═══════════════════════════════════════════════════════════════
  # P1: FOUNDATION / Fondations — 14/14 DONE
  # Types, traits, ports, graph topology, state machine
  # ═══════════════════════════════════════════════════════════════
  1-1-component-trait-definition: done
  1-2-physical-types-newtype-pattern: done
  1-3-port-and-connection-system: done
  1-7-component-state-machine: done
  3-1-system-graph-structure: done
  3-2-port-compatibility-validation: done
  3-3-multi-circuit-machine-definition: done
  3-4-thermal-coupling-between-circuits: done
  3-5-zero-flow-branch-handling: done
  3-6-hierarchical-subsystems-macrocomponents: done
  9-1-circuitid-type-unification: done
  9-2-fluidid-type-unification: done
  9-7-solver-refactoring-split-files: done
  9-8-systemstate-dedicated-struct: done

  # ═══════════════════════════════════════════════════════════════
  # P2: REAL COMPONENTS / Composants — 30/39 (77%)
  # All thermodynamic components, vendor data parsers, boundary conditions
  # ═══════════════════════════════════════════════════════════════
  1-4-compressor-component-ahri-540: done
  1-5-generic-heat-exchanger-framework: done
  1-6-expansion-valve-component: done
  1-8-auxiliary-transport-components: done
  1-9-air-coils-evaporatorcoil-condensercoil-post-mvp: done
  1-10-pipe-helpers-for-water-and-refrigerant: done
  1-11-flow-junctions-flowsplitter-flowmerger: done
  1-12-boundary-conditions-flowsource-flowsink: done
  8-1-fluid-backend-component-integration: done
  10-1-new-physical-types: done
  10-2-refrigerant-source-sink: done
  10-3-brine-source-sink: done
  10-4-air-source-sink: done
  10-5-migration-deprecation: done
  10-6-python-bindings-update: done
  11-1-node-passive-probe: done
  11-2-drum-recirculation-drum: done
  11-3-floodedevaporator: done
  11-4-floodedcondenser: done
  11-5-bphxexchanger-base: done
  11-6-bphxevaporator: done
  11-7-bphxcondenser: done
  11-8-correlationselector: done
  11-9-movingboundaryhx-zone-discretization: done
  11-10-movingboundaryhx-cache-optimization: done
  11-11-vendorbackend-trait: done
  11-12-copeland-parser: done
  11-13-swep-parser: done
  11-14-danfoss-parser: done
  11-15-bitzer-parser: done

  # --- Backlog: P2 Extended (from legacy integration) ---
  20-1-generalized-performance-curve-engine: done  # P2-31
  20-3-reversing-valve-four-way-component: backlog          # P2-32
  20-4-high-pressure-control-valve: backlog                 # P2-33
  20-5-compressor-parallel-units-vfd: backlog               # P2-34
  20-6-multi-zone-heat-exchanger-component: backlog         # P2-35
  20-7-additional-plate-hx-correlations: backlog            # P2-36
  20-8-equipment-catalog-system: backlog                    # P2-37
  20-9-fouling-encrustation-resistance: backlog             # P2-38
  20-10-vendor-backend-verification-modernization: backlog  # P2-39

  # ═══════════════════════════════════════════════════════════════
  # P3: FLUID PROPERTIES / Fluides — 8/9 (89%)
  # CoolProp, tabular backend, cache, mixtures, CO2 damping, psychrometrics
  # ═══════════════════════════════════════════════════════════════
  2-1-fluid-backend-trait-abstraction: done
  2-2-coolprop-integration-sys-crate: done
  2-3-tabular-interpolation-backend: done
  2-4-lru-cache-for-fluid-properties: done
  2-5-mixture-and-temperature-glide-support: done
  2-6-critical-point-damping-co2-r744: done
  2-7-incompressible-fluids-support: done
  2-8-rich-thermodynamic-state-abstraction: done

  # --- Backlog ---
  20-2-complete-psychrometric-module: backlog  # P3-09

  # ═══════════════════════════════════════════════════════════════
  # P4: SIMULATION & SOLVER — 22/26 (85%)
  # >>> PRIORITY PILLAR — must complete before P5/P6 expansion
  # ═══════════════════════════════════════════════════════════════

  # --- In Progress ---
  5-4-multi-variable-control: done
  7-5-json-serialization-deserialization: done

  # --- Review ---
  5-6-control-variable-step-clipping-in-solver: review

  # --- Ready for Dev ---
  7-6-component-calibration-parameters-calib: done

  # --- Backlog ---
  19-1-inverse-calibration: in-progress  # P4-25: solver-level algorithm

  # --- Backlog: Multi-point calibration ---
  calib-map-multi-point-calibration: backlog  # P4-26

  # --- Done ---
  4-1-solver-trait-abstraction: done
  4-2-newton-raphson-implementation: done
  4-3-sequential-substitution-picard-implementation: done
  4-4-intelligent-fallback-strategy: done
  4-5-time-budgeted-solving: done
  4-6-smart-initialization-heuristic: done
  4-7-convergence-criteria-validation: done
  4-8-jacobian-freezing-optimization: done
  5-1-constraint-definition-framework: done
  5-2-bounded-control-variables: done
  5-3-residual-embedding-for-inverse-control: done
  5-5-swappable-calibration-variables-inverse-calibration-one-shot: done
  7-1-mass-balance-validation: done
  7-2-energy-balance-validation: done
  7-3-traceability-metadata: done
  7-4-debug-verbose-mode: done
  9-3-expansionvalve-energy-methods: done
  9-4-flowsourceflowsink-energy-methods: done
  9-5-flowsplitterflowmerger-energy-methods: done
  9-6-energy-validation-logging-improvement: done

  # ═══════════════════════════════════════════════════════════════
  # P5: USER INTERFACES — 30/59 (51%)
  # CLI, Python, C FFI, WASM, Rust API (SystemBuilder)
  # ═══════════════════════════════════════════════════════════════

  # --- Review ---
  6-4-webassembly-compilation: in-progress
  15-4-cli-bphx-exchangers: review

  # --- Ready for Dev ---
  13-5-simulation-result-structured: done
  13-6-json-config-serialize: done
  13-7-fluid-backend-assignment: done

  # --- Backlog: CLI Component Coverage ---
  15-5-cli-flooded-condenser: backlog
  15-6-cli-drum: backlog
  15-7-cli-economizer: backlog
  15-8-cli-flow-splitter-merger: backlog
  15-10-cli-real-pipe: backlog
  15-11-cli-real-fan: backlog
  15-12-cli-bypass-valve: backlog
  15-13-cli-node-probe: backlog

  # --- Backlog: CLI Features & Output ---
  16-1-cli-calib-config: backlog
  16-2-cli-structured-output: backlog
  16-3-cli-multi-fluid: backlog
  16-4-cli-vendor-import: backlog
  16-5-cli-json-schema: backlog
  16-6-cli-machine-templates: backlog
  16-7-cli-parameter-sweep: backlog

  # --- Backlog: Python Parity ---
  17-1-python-fix-pump: backlog
  17-2-python-fix-fan: backlog
  17-3-python-screw-compressor: backlog
  17-4-python-mchx-condenser: backlog
  17-5-python-flooded-hx: backlog
  17-6-python-bphx-exchangers: backlog
  17-7-python-drum: backlog
  17-8-python-boundary-conditions: backlog
  17-9-python-multi-circuit: backlog
  17-10-python-calib-results: backlog
  17-11-python-bypass-coils: backlog
  17-12-python-vendor-parsers: backlog
  17-13-python-macro-snapshot: backlog

  # --- Backlog: WASM ---
  18-1-wasm-finalize-compilation: backlog
  18-2-wasm-all-components: backlog
  18-3-wasm-multi-circuit: backlog
  18-4-wasm-calib-results: backlog
  18-5-wasm-vendor-data: backlog

  # --- Done ---
  6-1-rust-native-api: done
  6-2-python-bindings-pyo3: done
  6-3-c-ffi-bindings-cbindgen: done
  6-5-cli-for-batch-execution: done
  6-6-python-solver-configuration-parity: done
  12-1-cli-internal-state-variables: done
  12-2-cli-coolprop-backend: done
  12-3-cli-screw-compressor-config: done
  12-4-cli-mchx-condenser-config: done
  12-5-cli-flooded-evaporator-brine: done
  12-6-cli-control-constraints: done
  12-7-cli-output-json-metrics: done
  12-8-cli-batch-improvements: done
  13-1-systembuilder-multi-circuit: done
  13-2-systembuilder-port-validated-edges: done
  13-3-systembuilder-constraints-api: done
  13-4-systembuilder-thermal-couplings: done
  15-1-cli-real-compressor: done
  15-2-cli-real-expansion-valve: done
  15-3-cli-real-pump: done
  15-9-cli-boundary-conditions: done

  # ═══════════════════════════════════════════════════════════════
  # P6: HVAC APPLICATIONS — 0/14 (7%)
  # Free cooling, calibration, standards compliance, reporting
  # ═══════════════════════════════════════════════════════════════

  # --- In Progress ---
  14-1-freecoolingexchanger-component: review

  # --- Backlog ---
  14-2-automatic-mode-switching-logic: backlog
  14-3-pumpcontroller-optimal-sequencing: backlog
  14-4-variable-frequency-drive-vfd-optimization: backlog
  14-5-bypass-valve-control: backlog
  14-6-safety-interlocks-protection: backlog
  14-7-control-configuration-serialization: backlog
  14-8-python-api-advanced-control: backlog
  7-7-ashrae-140-bestest-validation-post-mvp: backlog  # P6-09
  7-8-inverse-calibration-parameter-estimation: backlog  # P6-10
  19-2-eurovent-reporting: backlog  # P6-12
  19-3-ashrae-bestest: backlog  # MERGED into P6-09 (see epic-restructuring.md)

  # --- Backlog: Calibration workflow ---
  calibration-workflow-application: backlog  # P6-14

  # ═══════════════════════════════════════════════════════════════
  # RETROSPECTIVES
  # ═══════════════════════════════════════════════════════════════
  epic-1-retrospective: optional
  epic-2-retrospective: optional
  epic-3-retrospective: optional
  epic-4-retrospective: optional
  epic-5-retrospective: optional
  epic-6-retrospective: optional
  epic-7-retrospective: optional
  epic-8-retrospective: optional
  epic-9-retrospective: optional
  epic-10-retrospective: optional
  epic-11-retrospective: optional
  epic-12-retrospective: optional
  epic-13-retrospective: optional
  epic-14-retrospective: optional
  epic-15-retrospective: optional
  epic-16-retrospective: optional
  epic-17-retrospective: optional
  epic-18-retrospective: optional
  epic-19-retrospective: optional