[PR #678] [CLOSED] [FEATURE] Confirm that spools exists in inventory without NFCTag associated before creating a new one

## 📋 Pull Request Information **Original PR:** https://github.com/maziggy/bambuddy/pull/678 **Author:** [@wreuel](https://github.com/wreuel) **Created:** 3/12/2026 **Status:** ❌ Closed **Base:** `dev` ← **Head:** `feature/associateExistingBambuLabSpoolBeforeCreateOne` --- ### 📝 Commits (10+) - [`c415c6d`](https://github.com/maziggy/bambuddy/commit/c415c6d6e9a949830b9233c1642b77eb8f9db2ab) Add a check to associate an unassigned spool based on brand, color, and type. If a matching unused spool exists, reuse it; otherwise, create a new spool. - [`d7a6d4d`](https://github.com/maziggy/bambuddy/commit/d7a6d4d89551c03cd066e20b7c49923f3fd72ed2) Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne - [`7957b08`](https://github.com/maziggy/bambuddy/commit/7957b08da8191b95b4a1e14a87b1bac4a6f569f2) Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne - [`6f529bf`](https://github.com/maziggy/bambuddy/commit/6f529bf2c132cf5fd1ad0ef46fe74e5c5810251d) Complying with PR comments - [`44e4bb5`](https://github.com/maziggy/bambuddy/commit/44e4bb5aeea261224b9d075f459cc6067bf70e7a) Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne - [`df6e2e1`](https://github.com/maziggy/bambuddy/commit/df6e2e146814d26a95693baa6be2192a26d3182b) Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne - [`64beb1c`](https://github.com/maziggy/bambuddy/commit/64beb1c4b749397bfd83401a877fd810674c806e) Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne - [`bcf8847`](https://github.com/maziggy/bambuddy/commit/bcf8847fd929224ff0b47f4716a1febb24ec58cc) Adding racing condition using lock - [`609df90`](https://github.com/maziggy/bambuddy/commit/609df90dd67d00f531ca40ee804e7cead0b7762e) Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne - [`d95d1f9`](https://github.com/maziggy/bambuddy/commit/d95d1f935cf8d3a1b2aee218d9150c2209b2820a) adding test on race condition ### 📊 Changes **4 files changed** (+1134 additions, -2 deletions) <details> <summary>View changed files</summary> 📝 `backend/app/main.py` (+22 -2) 📝 `backend/app/services/spool_tag_matcher.py` (+124 -0) ➕ `backend/tests/unit/services/test_spool_match_race.py` (+337 -0) 📝 `backend/tests/unit/services/test_spool_tag_matcher.py` (+651 -0) </details> ### 📄 Description ## Description Add a check to associate an unassigned spool based on brand, color, and type. If a matching unused spool exists, reuse it; otherwise, create a new spool. ## Related Issue #538 Fixes # #538 ## Type of Change  - [ ] Bug fix (non-breaking change that fixes an issue) - [X] New feature (non-breaking change that adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to change) - [ ] Documentation update - [ ] Code refactoring - [ ] Performance improvement - [ ] Test addition or update ## Changes Made  - Added find_matching_inventory_spool() - Added link_tag_to_spool() — links RFID tag data (tag_uid, tray_uuid) to a matched inventory spool with data_origin="rfid_linked". - Updated AMS auto-management flow to use a 3-step fallback: a. Tag match b. Inventory match c. Create new — (existing, now last resort) ## Screenshots  ## Testing  - [ ] I have tested this on my local machine - [ ] I have tested with my printer model:  ## Checklist - [ ] My code follows the project's coding style - [ ] I have commented my code where necessary - [ ] I have updated the documentation (if needed) - [ ] My changes generate no new warnings - [ ] I have tested my changes thoroughly ## Additional Notes  Still need to confirm with testing on my side --- <sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>

BreizhHardware commented

2026-05-07 00:16:00 +02:00

Owner

📋 Pull Request Information

Original PR: https://github.com/maziggy/bambuddy/pull/678
Author: @wreuel
Created: 3/12/2026
Status: ❌ Closed

Base: dev ← Head: feature/associateExistingBambuLabSpoolBeforeCreateOne

📝 Commits (10+)

c415c6d Add a check to associate an unassigned spool based on brand, color, and type. If a matching unused spool exists, reuse it; otherwise, create a new spool.
d7a6d4d Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne
7957b08 Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne
6f529bf Complying with PR comments
44e4bb5 Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne
df6e2e1 Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne
64beb1c Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne
bcf8847 Adding racing condition using lock
609df90 Merge branch 'dev' into feature/associateExistingBambuLabSpoolBeforeCreateOne
d95d1f9 adding test on race condition

📊 Changes

4 files changed (+1134 additions, -2 deletions)

View changed files

📝 backend/app/main.py (+22 -2)
📝 backend/app/services/spool_tag_matcher.py (+124 -0)
➕ backend/tests/unit/services/test_spool_match_race.py (+337 -0)
📝 backend/tests/unit/services/test_spool_tag_matcher.py (+651 -0)

📄 Description

Description

Add a check to associate an unassigned spool based on brand, color, and type. If a matching unused spool exists, reuse it; otherwise, create a new spool.

#538

Fixes #

Type of Change

Bug fix (non-breaking change that fixes an issue)
New feature (non-breaking change that adds functionality)
Breaking change (fix or feature that would cause existing functionality to change)
Documentation update
Code refactoring
Performance improvement
Test addition or update

Changes Made

Added find_matching_inventory_spool()
Added link_tag_to_spool() — links RFID tag data (tag_uid, tray_uuid) to a matched inventory spool with data_origin="rfid_linked".
Updated AMS auto-management flow to use a 3-step fallback:
a. Tag match
b. Inventory match
c. Create new — (existing, now last resort)

Screenshots

Testing

I have tested this on my local machine
I have tested with my printer model:

Checklist

My code follows the project's coding style
I have commented my code where necessary
I have updated the documentation (if needed)
My changes generate no new warnings
I have tested my changes thoroughly

Additional Notes

Still need to confirm with testing on my side

_{🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.}

BreizhHardware

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[PR #678] [CLOSED] [FEATURE] Confirm that spools exists in inventory without NFCTag associated before creating a new one #1096