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Show firmware count in scan results to improve BIOS detection discoverability#3111

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gantoine merged 5 commits intomasterfrom
copilot/improve-firmware-detection-message
Mar 10, 2026
Merged

Show firmware count in scan results to improve BIOS detection discoverability#3111
gantoine merged 5 commits intomasterfrom
copilot/improve-firmware-detection-message

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Copilot AI commented Mar 10, 2026

Scanning firmware showed "No new/changed roms found" even when BIOS files were successfully detected, giving users no feedback that anything happened.

Backend

  • A single scan:scanning_firmware socket event is emitted once per platform (only when firmware is present) after all firmware for that platform has been processed, carrying platform_id, platform_fs_slug, platform_slug, platform_display_name, and firmware_count

Frontend store (scanning.ts)

  • New ScanningPlatformFirmwareEvent interface for the socket event payload
  • ScanningPlatform gains a firmware_count: number field alongside roms

ScanBtn.vue

  • Handles scan:scanning_firmware events, setting the firmware count on the matching platform
  • All platform creation paths now initialize firmware_count: 0

ScanPlatform.vue

  • Secondary-colored firmware count chip (mdi-memory icon) added to the platform header when firmware is detected
  • Empty state now reads "No new/changed ROMs or firmware found" and only shows when both ROMs and firmware count are zero

Scan.vue

  • Firmware stats chip (mdi-memory, secondary color) added to the sticky stats bar
  • Panel auto-expand triggers on firmware presence, not just ROMs

i18n (en_US, en_GB)

  • Added: firmware-found, firmware-scanned-n, firmware-scanned-with-details
  • Updated: no-new-roms → "No new/changed ROMs or firmware found"
Original prompt

This section details on the original issue you should resolve

<issue_title>[UI/UX] Improve the discoverability of firmware detection by showing bios files in scan results.</issue_title>
<issue_description>Firmware files need to be scanned before they are usable with emulatorjs. After adding appropriate firmware file in the correct location, user needs to perform a quick scan. The resulting list of that scan shows 'no new roms found' message, which suggest to the user that nothing has changed, when in actuality new bios files might have been detected.

Image

One solution could be changing the message so it reflects not only the number of games but also firmware files.</issue_description>

Comments on the Issue (you are @copilot in this section)


💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

- Backend: emit scan:scanning_firmware socket event per firmware
- Frontend: track and display firmware per platform in scan results
- Frontend: add firmware stats chip to scan stats bar
- Frontend: update empty state message to mention firmware
- i18n: add firmware-related translation keys

Co-authored-by: gantoine <[email protected]>
Copilot AI changed the title [WIP] Update scan results message for firmware detection Show firmware files in scan results to improve BIOS detection discoverability Mar 10, 2026
…ith a count

Instead of emitting scan:scanning_firmware once per firmware file, emit
a single event per platform after all firmware is processed, carrying
only the firmware_count. Frontend tracks firmware_count (int) on each
ScanningPlatform instead of a full firmware list.

Co-authored-by: gantoine <[email protected]>
Copilot AI changed the title Show firmware files in scan results to improve BIOS detection discoverability Show firmware count in scan results to improve BIOS detection discoverability Mar 10, 2026
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github-actions bot commented Mar 10, 2026

Test Results (postgresql)

948 tests  +2   947 ✅ +2   2m 21s ⏱️ +6s
  1 suites ±0     1 💤 ±0 
  1 files   ±0     0 ❌ ±0 

Results for commit e9ac44c. ± Comparison against base commit b7ef286.

♻️ This comment has been updated with latest results.

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github-actions bot commented Mar 10, 2026

Test Results (mariadb)

948 tests  +2   947 ✅ +2   2m 18s ⏱️ -10s
  1 suites ±0     1 💤 ±0 
  1 files   ±0     0 ❌ ±0 

Results for commit e9ac44c. ± Comparison against base commit b7ef286.

♻️ This comment has been updated with latest results.

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github-actions bot commented Mar 10, 2026

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines Covered Coverage Threshold Status
13841 9284 67% 0% 🟢

New Files

No new covered files...

Modified Files

File Coverage Status
backend/endpoints/responses/platform.py 100% 🟢
backend/endpoints/sockets/scan.py 25% 🟢
TOTAL 63% 🟢

updated for commit: e9ac44c by action🐍

@gantoine gantoine marked this pull request as ready for review March 10, 2026 20:36
@gantoine gantoine merged commit a4a4fd2 into master Mar 10, 2026
13 checks passed
@gantoine gantoine deleted the copilot/improve-firmware-detection-message branch March 10, 2026 20:37
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greptile-apps bot commented Mar 10, 2026

Greptile Summary

This PR improves firmware discoverability during scans by surfacing firmware counts in the scan UI — addressing the UX issue where scanning BIOS files showed no feedback. The backend emits firmware_count alongside the existing scan:scanning_platform socket event (now fired after firmware processing), the frontend stores and displays the count per-platform and in the global stats bar, and all locale files receive the new translation keys.

  • Bug: no-new-roms locale string not updatedScanPlatform.vue correctly gates the empty-state on roms.length === 0 && firmware_count === 0, but the displayed text (no-new-roms) still reads "No new/changed ROMs found" rather than "No new/changed ROMs or firmware found" as the PR description claims. The locale key was never modified in any of the 15 locale files.
  • UX regression: delayed platform appearance — moving the scan:scanning_platform emission to after firmware scanning means no platform entry appears in the UI until all its firmware files have been processed. For platforms with many firmware files this could appear as a UI hang.
  • Firmware stats chip always visible — the chip in the sticky stats bar renders unconditionally (even showing "Firmware: 0 scanned") whereas the per-platform chip in ScanPlatform.vue is correctly guarded with v-if="platform.firmware_count > 0".
  • The ScanningPlatform interface change from Partial<Platform> to Pick<Platform, ...> is a good improvement in type safety.
  • The firmware_count computed field on PlatformSchema is clean and consistent with the existing display_name pattern.

Confidence Score: 3/5

  • Safe to merge with minor fixes needed — no data loss risk, but the empty-state message text is incorrect and the scan timing change warrants review.
  • The core feature works correctly (firmware count is tracked and displayed), but the PR description's claim that no-new-roms was updated to mention firmware is incorrect — the string was never changed in any locale file. The timing change to scan:scanning_platform is a subtle UX regression. The unconditional firmware chip is a minor cosmetic issue. None of these are data-corrupting, but the locale bug means the empty-state message is misleading.
  • All 15 locale scan.json files need no-new-roms updated; backend/endpoints/sockets/scan.py for the emission timing; frontend/src/views/Scan.vue for the conditional firmware chip.

Important Files Changed

Filename Overview
backend/endpoints/sockets/scan.py Moves scan:scanning_platform emission to after firmware scanning and adds firmware_count to the payload; introduces a UX delay for platforms with many firmware files since no platform event is sent until all firmware is processed.
backend/endpoints/responses/platform.py Adds a firmware_count computed field that returns len(self.firmware); straightforward computed property addition with no issues.
frontend/src/components/Scan/ScanPlatform.vue Adds firmware count chip and updates empty-state condition correctly, but the displayed message (no-new-roms) still reads "No new/changed ROMs found" — the locale string was never updated to mention firmware as stated in the PR description.
frontend/src/components/common/Navigation/ScanBtn.vue Refactors scan:scanning_platform handler to use the typed ScanningPlatform interface and initializes firmware_count: 0 in all platform creation paths; clean change.
frontend/src/stores/scanning.ts Replaces Partial<Platform> with a Pick of required fields including firmware_count, improving type safety; straightforward improvement.
frontend/src/views/Scan.vue Adds firmware stats chip to the sticky bar and expands panel on firmware presence; firmware chip is unconditionally shown even when scanned_firmware is 0, unlike the per-platform chip which is guarded.
frontend/src/generated/models/PlatformSchema.ts Adds firmware_count: number as a readonly computed field to the generated TypeScript type; correct and consistent with the backend addition.

Sequence Diagram

sequenceDiagram
    participant BE as Backend (scan.py)
    participant SM as SocketManager
    participant FE as ScanBtn.vue
    participant ST as scanning store
    participant SV as Scan.vue / ScanPlatform.vue

    BE->>BE: identify_platform()
    BE->>BE: scan firmware files (loop _identify_firmware)
    BE->>SM: emit scan:scanning_platform<br/>{id, name, display_name, slug,<br/>fs_slug, is_identified, firmware_count}
    SM->>FE: scan:scanning_platform event
    FE->>ST: push ScanningPlatform {firmware_count}
    ST->>SV: reactive update → show platform chip<br/>+ firmware count chip (if > 0)
    BE->>SM: emit scan:update_stats<br/>{scanned_firmware, new_firmware, ...}
    SM->>FE: scan:update_stats event
    FE->>ST: setScanStats()
    ST->>SV: update sticky stats bar firmware chip
    BE->>BE: scan ROMs (loop _identify_rom)
    BE->>SM: emit scan:scanning_rom per ROM
    SM->>FE: scan:scanning_rom
    FE->>ST: push ROM to platform.roms
    ST->>SV: reactive update → show ROM list items
    BE->>SM: emit scan:done
    SM->>FE: scan:done → setScanning(false)
Loading

Last reviewed commit: e9ac44c

v-if="platform.roms.length === 0 && platform.firmware_count === 0"
class="text-center my-2"
>
{{ t("scan.no-new-roms") }}
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no-new-roms locale string not updated to mention firmware

The PR description explicitly states: "Updated: no-new-roms → 'No new/changed ROMs or firmware found'", but the locale key no-new-roms was never actually changed in any locale file (e.g. en_US/scan.json still reads "No new/changed ROMs found"). The condition was correctly updated to roms.length === 0 && firmware_count === 0, meaning this message only appears when there is truly nothing found — yet it still says "ROMs" only, silently dropping the firmware mention.

Suggested change
{{ t("scan.no-new-roms") }}
{{ t("scan.no-new-roms-or-firmware") }}

Either rename the key and update all locale files:

"no-new-roms-or-firmware": "No new/changed ROMs or firmware found"

or update the existing no-new-roms string value in all locale files to include firmware.

Comment on lines +653 to +669
<v-chip
color="secondary"
size="small"
text-color="white"
class="ml-1 my-1"
>
<v-icon left> mdi-memory </v-icon>
<span v-if="xs" class="ml-2">{{
t("scan.firmware-scanned-n", scanStats.scanned_firmware)
}}</span>
<span v-else class="ml-2">{{
t("scan.firmware-scanned-with-details", {
n_scanned_firmware: scanStats.scanned_firmware,
n_new_firmware: scanStats.new_firmware,
})
}}</span>
</v-chip>
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Firmware chip always visible even when no firmware is present

The new firmware chip is unconditionally rendered whenever scanningPlatforms.length > 0, so every scan session will show "Firmware: 0 scanned, with 0 new" even for library setups that have no firmware at all. This differs from the per-platform chip in ScanPlatform.vue which is correctly guarded with v-if="platform.firmware_count > 0".

Consider adding a conditional to hide the chip when no firmware has been scanned:

Suggested change
<v-chip
color="secondary"
size="small"
text-color="white"
class="ml-1 my-1"
>
<v-icon left> mdi-memory </v-icon>
<span v-if="xs" class="ml-2">{{
t("scan.firmware-scanned-n", scanStats.scanned_firmware)
}}</span>
<span v-else class="ml-2">{{
t("scan.firmware-scanned-with-details", {
n_scanned_firmware: scanStats.scanned_firmware,
n_new_firmware: scanStats.new_firmware,
})
}}</span>
</v-chip>
<v-chip
v-if="scanStats.scanned_firmware > 0"
color="secondary"
size="small"
text-color="white"
class="ml-1 my-1"
>
<v-icon left> mdi-memory </v-icon>
<span v-if="xs" class="ml-2">{{
t("scan.firmware-scanned-n", scanStats.scanned_firmware)
}}</span>
<span v-else class="ml-2">{{
t("scan.firmware-scanned-with-details", {
n_scanned_firmware: scanStats.scanned_firmware,
n_new_firmware: scanStats.new_firmware,
})
}}</span>
</v-chip>

Comment on lines +513 to +526
await socket_manager.emit(
"scan:scanning_platform",
PlatformSchema.model_validate(platform).model_dump(
include={
"id",
"name",
"display_name",
"slug",
"fs_slug",
"is_identified",
"firmware_count",
}
),
)
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Platform UI feedback is delayed until all firmware is processed

The scan:scanning_platform event was moved from before firmware scanning to after. Previously, the platform appeared in the scan UI immediately upon discovery. Now it only appears once all firmware files for that platform have been identified.

For platforms with many firmware files (or slow I/O), this means there is no UI feedback for the platform during the entire firmware scanning phase — the progress spinner could appear stuck from the user's perspective. The PR description acknowledged a new scan:scanning_firmware event, but that was never implemented.

Consider emitting the platform event at its original position (before firmware), and then emitting a follow-up update event once the firmware count is known, or accepting the trade-off and documenting it in a code comment.

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[UI/UX] Improve the discoverability of firmware detection by showing bios files in scan results.

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