# Usage Reports Guide

This guide explains how to generate and interpret usage reports from the AI QC system.

## Quick Start

### Generate a Basic Report

```bash
# From the backend directory
cd backend

# Generate report for all time
python generate_usage_report.py

# Generate report for last 7 days
python generate_usage_report.py --last-days 7

# Generate report for last 30 days
python generate_usage_report.py --last-days 30
```

### Generate Reports by Date Range

```bash
# Specific date range
python generate_usage_report.py --start-date 2026-02-01 --end-date 2026-02-28

# From a specific date to today
python generate_usage_report.py --start-date 2026-02-01
```

### Filter by Client

```bash
# Only show data for a specific client
python generate_usage_report.py --client diageo --last-days 30
python generate_usage_report.py --client unilever --last-days 7
python generate_usage_report.py --client loreal --last-days 30
python generate_usage_report.py --client general --last-days 30
```

## Output Formats

### Text Format (Default)
Human-readable format with sections for summary, by client, by user, and by profile.

```bash
python generate_usage_report.py --format text
```

### JSON Format
Machine-readable JSON format for integration with other tools.

```bash
python generate_usage_report.py --format json --output report.json
```

### CSV Format
Spreadsheet-compatible format for analysis in Excel or Google Sheets.

```bash
python generate_usage_report.py --format csv --output report.csv
```

## Save Report to File

```bash
# Save text report
python generate_usage_report.py --last-days 30 --output monthly_report.txt

# Save JSON report
python generate_usage_report.py --last-days 30 --format json --output monthly_report.json

# Save CSV report
python generate_usage_report.py --last-days 30 --format csv --output monthly_report.csv
```

## Example Reports

### Example 1: Monthly Report for All Clients

```bash
python generate_usage_report.py --last-days 30 --output reports/$(date +%Y-%m)_monthly_report.txt
```

### Example 2: Weekly Report by Client

```bash
# Generate individual reports for each client
for client in diageo unilever loreal general; do
    python generate_usage_report.py --client $client --last-days 7 \
        --output reports/${client}_weekly_$(date +%Y%m%d).txt
done
```

### Example 3: JSON Report for API Integration

```bash
python generate_usage_report.py --last-days 30 --format json | curl -X POST \
    -H "Content-Type: application/json" \
    -d @- \
    https://your-analytics-api.com/reports
```

## Report Sections

### Summary
- **Total Analyses**: Total number of files analyzed
- **Total QC Checks**: Total number of individual QC checks performed
- **Total Estimated Cost**: Estimated cost in USD based on LLM usage
- **Average Checks per Analysis**: Average number of checks per file
- **Average Cost per Analysis**: Average cost per file analyzed

### Usage by Client
For each client:
- Number of analyses
- Total QC checks performed
- Number of unique users
- Average quality score
- Estimated cost
- Top 5 most-used profiles

### Usage by User
For each user:
- Name and email
- Number of analyses
- Total QC checks
- Average quality score
- Estimated cost
- Breakdown of clients used

### Usage by Profile
For each QC profile:
- Number of times used
- Total checks performed
- Average quality score
- List of clients using this profile

### Usage by Date
- Daily breakdown showing:
  - Number of analyses per day
  - Cost per day

## Cost Estimation

Cost estimates are based on:
- **OpenAI GPT-4**: ~$2.50 per 1M input tokens, ~$10.00 per 1M output tokens
- **Google Gemini 2.5 Pro**: ~$1.25 per 1M input tokens, ~$5.00 per 1M output tokens

Average estimates per check:
- ~1000 input tokens (prompt + image description)
- ~200 output tokens (analysis results)

**Note**: These are estimates and may vary based on actual usage patterns.

## Automation

### Daily Report Cron Job

Add to your crontab (`crontab -e`):

```bash
# Generate daily report at 8 AM
0 8 * * * cd /opt/ai_qc/backend && python generate_usage_report.py --last-days 1 --output reports/daily_$(date +\%Y\%m\%d).txt

# Generate weekly report every Monday at 9 AM
0 9 * * 1 cd /opt/ai_qc/backend && python generate_usage_report.py --last-days 7 --output reports/weekly_$(date +\%Y\%m\%d).txt

# Generate monthly report on 1st of each month at 10 AM
0 10 1 * * cd /opt/ai_qc/backend && python generate_usage_report.py --last-days 30 --output reports/monthly_$(date +\%Y\%m).txt
```

### Email Report Script

Create a bash script to email reports:

```bash
#!/bin/bash
# email_report.sh

REPORT_DATE=$(date +%Y-%m-%d)
REPORT_FILE="/tmp/ai_qc_report_${REPORT_DATE}.txt"

# Generate report
cd /opt/ai_qc/backend
python generate_usage_report.py --last-days 7 --output "$REPORT_FILE"

# Email report
mail -s "AI QC Weekly Report - ${REPORT_DATE}" \
    your-email@company.com < "$REPORT_FILE"

# Clean up
rm "$REPORT_FILE"
```

## Troubleshooting

### No Data Found

If you see "No usage data found", check:
1. Usage logs exist in `backend/usage_logs/`
2. Date range is correct
3. Client filter (if used) matches existing client IDs

### Permission Errors

Ensure the script has read access to the usage logs directory:

```bash
chmod +r backend/usage_logs/*.jsonl
```

### Import Errors

Make sure you're running from the backend directory:

```bash
cd backend
python generate_usage_report.py
```

## Advanced Usage

### Combine with Other Tools

```bash
# Count total analyses
python generate_usage_report.py --format json | jq '.total_analyses'

# Get top user by usage
python generate_usage_report.py --format json | jq -r '.by_user | to_entries | sort_by(.value.count) | reverse | .[0].value.email'

# Calculate total cost for specific date range
python generate_usage_report.py --start-date 2026-02-01 --end-date 2026-02-28 --format json | jq '.total_cost'
```

### Monitor Trends

```bash
# Generate monthly reports and compare
for month in 01 02 03; do
    python generate_usage_report.py \
        --start-date 2026-${month}-01 \
        --end-date 2026-${month}-31 \
        --format json \
        --output reports/2026-${month}.json
done

# Analyze trends
jq -s '[.[] | {month: (.by_date | keys | min), total: .total_analyses, cost: .total_cost}]' reports/2026-*.json
```

## Report Examples

### Sample Text Report

```
================================================================================
AI QC USAGE REPORT
================================================================================
Generated: 2026-02-02 12:00:00

SUMMARY
--------------------------------------------------------------------------------
Total Analyses: 156
Total QC Checks: 1,560
Total Estimated Cost: $78.00 USD
Average Checks per Analysis: 10.0
Average Cost per Analysis: $0.5000 USD

USAGE BY CLIENT
--------------------------------------------------------------------------------

DIAGEO
  Analyses: 45
  QC Checks: 495
  Unique Users: 3
  Average Score: 87.5/100
  Estimated Cost: $24.75 USD
  Top Profiles:
    • diageo_key_visual: 30 analyses
    • diageo_packaging: 15 analyses

UNILEVER
  Analyses: 38
  QC Checks: 570
  Unique Users: 2
  Average Score: 89.2/100
  Estimated Cost: $28.50 USD
  Top Profiles:
    • unilever_key_visual: 25 analyses
    • unilever_packaging: 13 analyses
...
```

## Support

For issues or questions about usage reports:
1. Check this guide first
2. Review log files in `backend/usage_logs/`
3. Contact the development team