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fix: cost tracker $0.00 bug — add token estimation fallback for DeepSeek (v4.4.3)

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DeepSeek models on OpenRouter omit the usage object, causing all token
counts and costs to log as zero. Added character-based estimation
fallback (~3.75 chars/token), token_source column to distinguish
measured vs estimated data, and admin UI indicators (amber warnings,
~ prefix on estimates). Updated DeepSeek/Qwen pricing table.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
peptiderepo
2026-04-14 08:32:30 +07:00
parent 52a83439b1
commit 5d5019bda3
6 changed files with 138 additions and 12 deletions
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21
ARCHITECTURE.md
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@@ -321,6 +321,27 @@ Migration for existing peptides via admin "Migrate Existing Peptides to Categori
| `psa_directory_card_extras` | Filter | Allows adding HTML to directory cards (e.g., observation count badge). |
| `psa_rest_compound_data` | Filter | Allows enriching REST compound data before response. Receives `$data`, `$post_id`. |
### API Logs Table (`wp_psa_api_logs`)
Custom table created via `dbDelta` on plugin activation. Tracks every OpenRouter API call for cost monitoring and budget enforcement.
| Column | Type | Description |
|--------|------|-------------|
| `id` | BIGINT AUTO_INCREMENT | Primary key |
| `created_at` | DATETIME | Timestamp of API call |
| `provider` | VARCHAR(50) | API provider (default: `openrouter`) |
| `model` | VARCHAR(100) | Model identifier (e.g., `deepseek/deepseek-v3.2`) |
| `prompt_tokens` | INT | Tokens in prompt (measured or estimated) |
| `completion_tokens` | INT | Tokens in completion (measured or estimated) |
| `total_tokens` | INT | Sum of prompt + completion tokens |
| `estimated_cost_usd` | DECIMAL(10,6) | Estimated cost in USD |
| `request_type` | VARCHAR(20) | `validation` or `generation` |
| `peptide_name` | VARCHAR(200) | Peptide being processed |
| `success` | TINYINT(1) | Whether the API call succeeded |
| `token_source` | VARCHAR(20) | `api` (measured from response), `estimated` (character-based fallback), or `none` (v4.4.3) |
**Why `token_source`:** Some OpenRouter models (notably DeepSeek) omit the `usage` object from API responses. When this happens, `PSA_OpenRouter` estimates tokens from character length (~3.75 chars/token). The `token_source` column lets the admin UI clearly distinguish measured vs. estimated data.
### Options (Plugin Settings)
Stored in `wp_options` table: