# Créer une session dédiée
tmux new -s ralph

# Lancer OpenCode
opencode

# Détacher : Ctrl+B puis D
# Revenir : tmux attach -t ralph

# Créer le fichier de tâche
cat > RALPH_TASK.md << 'EOF'
# Task: Add User Pagination

## Goal
Add pagination to the GET /users endpoint.

## Success Criteria (ALL must pass)
- [ ] GET /users?page=1&limit=10 returns 10 users max
- [ ] Response includes total count
- [ ] Page parameter is validated (error if < 1)
- [ ] Limit parameter is validated (1-100)
- [ ] Tests pass: `make test`
- [ ] No lint errors: `make lint`

## Files to Modify
- src/api/routes/users.py
- tests/test_users.py

## Constraints
- Do NOT modify database schema
- Do NOT add new dependencies
- Keep existing endpoint signature
EOF

# Script bash basique
while :; do
  echo "=== Iteration $(date) ==="
  opencode --prompt "$(cat RALPH_TASK.md)"
  if make test; then
    echo "SUCCESS!"
    break
  fi
  sleep 10
done

# Structure du projet pour Ralph
mkdir -p .ralph

cat > .ralph/config.yaml << 'EOF'
task_file: RALPH_TASK.md
guardrails_file: .ralph/guardrails.md
max_iterations: 20
test_command: make test
commit_between_iterations: true
EOF

# .ralph/guardrails.md
## Sign: Env Files Are Private
Never modify .env files directly.
Use .env.example for documentation only.

=== Iteration 1 ===
[Agent reads files...]
[Agent writes code...]
[Agent runs tests...]
FAIL: test_pagination_page_parameter

=== Iteration 2 ===
[Agent reads guardrails...]
[Agent fixes the issue...]
[Agent runs tests...]
PASS: All tests pass!
SUCCESS!

# Script avec limite
MAX_ITERATIONS=20
count=0

while [ $count -lt $MAX_ITERATIONS ]; do
  echo "=== Iteration $((count+1))/$MAX_ITERATIONS ==="
  opencode --prompt "$(cat RALPH_TASK.md)"
  
  if make test; then
    echo "SUCCESS after $((count+1)) iterations!"
    break
  fi
  
  count=$((count+1))
  sleep 5
done

if [ $count -eq $MAX_ITERATIONS ]; then
  echo "FAILED: Max iterations reached"
  exit 1
fi

# RALPH_TASK_FAIL.md
# Task: Refactor All Code
## Goal
"Improve the code quality"  # Trop vague !
## Success Criteria
- [ ] Code is better

# Si l'agent a fait une erreur, créer un guardrails
cat > .ralph/guardrails.md << 'EOF'
# Guardrails

## Sign: Pagination Must Use Offset/Limit
**Learned from iteration #3**
- Attempted to use cursor pagination
- Project uses offset/limit convention
- Always check existing pagination patterns first

## Sign: Never Delete Test Files
**Learned from iteration #7**
- Deleted tests to make them pass
- ALWAYS fix tests, never delete them
EOF

# Créer deux branches depuis main
git checkout main && git pull
git checkout -b feature/feature-A
git checkout main
git checkout -b feature/feature-B

# Ouvrir 2 sessions tmux
tmux new -s agentA
# Dans agentA: opencode sur feature/feature-A

tmux new -s agentB
# Dans agentB: opencode sur feature/feature-B

# Agent A (session agentA)
> Ajoute un système de tags aux articles
> Contrainte: ne modifie pas les modèles existants

# Agent B (session agentB)
> Ajoute un système de favoris aux articles
> Contrainte: ne modifie pas les modèles existants

# AGENTS.md
## Branches parallèles
- feature/tags: src/models/article.py, src/api/tags.py
- feature/favorites: src/models/article.py, src/api/favorites.py
- CONFLIT POTENTIEL: src/models/article.py → coordination requise

Feature A modifie: src/api/a.py, tests/test_a.py
Feature B modifie: src/api/b.py, tests/test_b.py
Fichier commun: src/models/shared.py → reporter à la fin

# Merger A d'abord
git checkout main
git merge feature/feature-A

# Puis merger B avec résolution
git merge feature/feature-B
# Résoudre les conflits manuellement