# CSV Import Format Specification

## File Format

- **Encoding**: UTF-8
- **Delimiter**: Comma (`,`)
- **Header Rows**: First 4 rows are skipped during import
  - Row 1: Empty
  - Row 2: Headers (French labels)
  - Row 3: Description row
  - Row 4: Column names
- **Data Rows**: Start from row 5 onwards

## Column Structure

The CSV must contain exactly 21 columns in this order:

| Index | Field Name | Required | Type | Description |
|-------|------------|----------|------|-------------|
| 0 | identifier | No | String | Unique identifier for the thesis |
| 1 | title | **Yes** | String | Thesis title |
| 2 | subtitle | No | String | Thesis subtitle |
| 3 | authors | No | String | Author(s), comma-separated for multiple |
| 4 | contact | No | String | Contact email (associated with first author) |
| 5 | supervisors | No | String | Supervisor(s), comma-separated for multiple |
| 6 | formats | No | String | Format(s), comma-separated for multiple |
| 7 | year | **Yes** | Integer | Year of thesis (e.g., 2024) |
| 8 | ap | No | String | AP program code (see AP Codes section) |
| 9 | orientation | No | String | Orientation code (see Orientation Codes section) |
| 10 | finality | No | String | Finality name |
| 11 | keywords | No | String | Keywords, comma-separated (max 10) |
| 12 | synopsis | No | Text | Synopsis/abstract of the thesis |
| 13 | context | No | Text | Context note |
| 14 | remarks | No | Text | Additional remarks |
| 15 | language | No | String | Language (e.g., Français, English, Nederlands) |
| 16 | access | No | String | Access authorization |
| 17 | license | No | String | License information |
| 18 | size_info | No | String | File size information |
| 19 | jury_points | No | Float | Jury score (out of 20) |
| 20 | baiu_link | No | String | Link to BAIU (institutional archive) |

## Field Details

### Required Fields
- **title**: Must not be empty
- **year**: Must not be empty and must be a valid integer

### Multi-Value Fields
These fields accept multiple values separated by commas:
- **authors**: e.g., `"John Doe, Jane Smith"`
- **supervisors**: e.g., `"Prof. A, Prof. B"`
- **keywords**: Maximum 10 keywords, e.g., `"art, design, digital"`
- **formats**: e.g., `"PDF, Video, Installation"`

### Orientation Codes
Valid orientation codes and their full names:

```
SC = Sculpture
VI = Vidéographie
CA = Cinéma d'animation
IP = Installation-Performance
PE = Peinture
PH = Photographie
DE = Dessin
AN = Arts Numériques
GR = Graphisme
TY = Typographie
DN = Design Numérique
IL = Illustration
BD = Bande-Dessinée
SE = Sérigraphie
GV = Gravure
```

### AP Codes
Valid AP program codes:
- `DPM`
- `LIENS`
- `APS`

(These codes must match exactly what exists in the `ap_programs` table)

### Language Values
Languages should be provided with capital first letter:
- `Français`
- `English`
- `Nederlands`
- etc.

### Format Values
Common format values (case-insensitive, will be normalized):
- `PDF`
- `Video`
- `Audio`
- `Installation`
- `Web`
- etc.

## Import Behavior

### Row Processing
1. Empty rows (no title and no identifier) are skipped
2. Each row is processed in a transaction
3. If a row fails, it is skipped and logged, but processing continues

### Data Validation
- If title or year is missing, the row is rejected
- Invalid orientation codes result in no orientation being set (null)
- Invalid AP codes result in no AP program being set (null)
- Keywords are limited to first 10 if more are provided

### Data Normalization
- All string fields are trimmed of whitespace
- Language and format values are normalized (first letter capitalized, rest lowercase)
- Empty strings are converted to NULL in the database

### Entity Creation
- Authors, supervisors, and keywords are automatically created if they don't exist
- Existing authors are matched by name
- Contact email is only associated with the first author

## Example CSV Structure

```csv

Identifiant,Titre,Sous-titre,Auteur·ice(s),Contact,Promoteur·ice(s),Format,Année,AP,Orientation,Finalité,Mots-clés,Synopsis,Contexte,Remarques,Langue,Autorisation,License,taille,Points sur 20,lien BAIU

TFE-2024-001,Mon projet artistique,Exploration du numérique,"Alice Dupont, Bob Martin",alice@example.com,Prof. Smith,PDF,2024,DPM,AN,Création,art numérique,digital art,interactive installation,Un projet explorant l'intersection de l'art et de la technologie,Réalisé dans le cadre du master,Très bon projet,Français,Public,CC-BY,250MB,16.5,https://baiu.example.org/12345
TFE-2024-002,Design graphique moderne,,Charlie Brown,charlie@example.com,"Prof. A, Prof. B","PDF, Print",2024,LIENS,GR,Design,typographie,graphisme,design,Une exploration de la typographie contemporaine,,,English,Restricted,All rights reserved,50MB,15,
```

## Troubleshooting

### Common Issues
1. **Encoding problems**: Ensure file is saved as UTF-8
2. **Missing columns**: All 21 columns must be present, even if empty
3. **Line breaks in fields**: Ensure fields containing newlines are properly quoted
4. **Quote escaping**: Use double quotes (`""`) to escape quotes within fields

### Import Results
After import, the system will display:
- Number of theses successfully imported
- Number of rows skipped due to errors
- Detailed line-by-line results with success (✓) or error (✗) indicators

## Notes

- The import process preserves the order of authors, supervisors, and keywords
- The first author gets the contact email if provided
- Duplicate detection is not performed - each import creates new entries
- Failed rows do not stop the import process
- All errors are logged to the server error log
