[domain] outgoing MMS support

[capcom6]

Summary by CodeRabbit

• New Features

  • Added support for sending MMS messages with optional subjects, text, and attachments, including attachment names.
  • MMS text is available as message content when no SMS or data message content is set.
  • Optional MMS fields are included in outgoing payloads when provided.

• Bug Fixes

  • MMS subjects, text, attachment names, and attachment data are encrypted before transmission when encryption is enabled.
  • Unset and empty MMS fields are preserved without adding unintended data.

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Reviewing files that changed from the base of the PR and between 84efa81 and b69e5c5.

📒 Files selected for processing (2)

• CHANGELOG.md
• README.md

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📝 Walkthrough

Walkthrough

The PR adds MMS domain models and serialization. Message.content can use MMS text. BaseClient._encrypt encrypts MMS fields and attachments before sending. Tests cover serialization, content precedence, encryption, and send behavior.

Changes

Outgoing MMS support

Layer / File(s)	Summary
MMS content and serialization android_sms_gateway/domain.py, tests/test_domain.py, README.md, CHANGELOG.md	Message now supports MmsMessage and MMS text in Message.content. MMS attachments and optional fields serialize to the wire format. Tests cover field omission, JSON output, and content precedence. The README and changelog describe outgoing MMS support.
MMS encryption and send integration android_sms_gateway/client.py, tests/test_client.py	BaseClient._encrypt encrypts MMS subject, text, attachment data, and optional attachment names. Tests cover round-trip encryption, send payloads, omitted fields, missing encryptors, and already-encrypted messages.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant BaseClient
  participant AESEncryptor
  participant GatewayAPI
  BaseClient->>AESEncryptor: encrypt MMS fields
  AESEncryptor-->>BaseClient: return encrypted values
  BaseClient->>GatewayAPI: post encrypted MMS payload

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Merge Risk: ⚪ Minimal · up to b69e5

No identified issue blocks merging outgoing MMS support after normal checks.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely identifies the main change: adding outgoing MMS support in the domain layer.
Docstring Coverage	✅ Passed	Docstring coverage is 83.33% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 30 functions across 4 files. (2 skipped: 2 …
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

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Inline comments:
In `@android_sms_gateway/domain.py`:
- Line 54: Update the Message.content property to return mms_message.text when
mms_message exists and its text is not None, while preserving the existing
text_message and data_message precedence and the ValueError fallback.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Advanced

Run ID: 32d69331-5768-49e1-be57-6389888005b1

📥 Commits

Reviewing files that changed from the base of the PR and between b490bc8 and 3aaddeb.

📒 Files selected for processing (4)

• android_sms_gateway/client.py
• android_sms_gateway/domain.py
• tests/test_client.py
• tests/test_domain.py

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