migrate

#!/usr/bin/env bash
set -euo pipefail

# Migration script for the Livewire/Flux skill reorganisation (April 2025).
#
# Removes old skill/agent names that have been replaced, then runs sync
# to install the new versions. Only needs to be run once per machine.

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
CLAUDE_DIR="${HOME}/.claude"
BACKUP_FILE="${HOME}/claude-backup-$(date +%Y%m%d-%H%M%S).zip"

# What's being replaced
OLD_SKILLS=("frontend-fluxui" "livewire-principles")
OLD_AGENTS=("livewire-flux-simplifier.md")

# What replaces them
NEW_SKILLS=("flux-ui" "modern-livewire" "ui-to-flux" "quality-gate")
NEW_AGENTS=("livewire-flux-reviewer.md")

echo "=========================================="
echo "  Skill & Agent Migration"
echo "=========================================="
echo ""
echo "This script removes old skill/agent names that have been replaced"
echo "in the repo, then runs ./sync to install the new versions."
echo ""
echo "Renames:"
echo "  skills/frontend-fluxui      -> skills/flux-ui"
echo "  skills/livewire-principles   -> skills/modern-livewire"
echo "  agents/livewire-flux-simplifier.md -> agents/livewire-flux-reviewer.md"
echo ""
echo "New:"
echo "  skills/ui-to-flux"
echo "  skills/quality-gate"
echo ""

# Check ~/.claude exists
if [ ! -d "$CLAUDE_DIR" ]; then
    echo "No ~/.claude directory found. Nothing to migrate."
    exit 0
fi

# Check for old items
found_old=0
for skill in "${OLD_SKILLS[@]}"; do
    [ -d "${CLAUDE_DIR}/skills/${skill}" ] && found_old=1
done
for agent in "${OLD_AGENTS[@]}"; do
    [ -f "${CLAUDE_DIR}/agents/${agent}" ] && found_old=1
done

if [ "$found_old" -eq 0 ]; then
    echo "No old skill/agent names found in ~/.claude — nothing to migrate."
    echo "If you just need to sync, run: ./sync"
    exit 0
fi

echo "Found old items to remove:"
for skill in "${OLD_SKILLS[@]}"; do
    [ -d "${CLAUDE_DIR}/skills/${skill}" ] && echo "  ~/.claude/skills/${skill}/"
done
for agent in "${OLD_AGENTS[@]}"; do
    [ -f "${CLAUDE_DIR}/agents/${agent}" ] && echo "  ~/.claude/agents/${agent}"
done
echo ""

# Offer backup
echo "*** This will DELETE the items listed above, then run ./sync ***"
echo ""
read -rp "Create a zip backup of ~/.claude/{skills,agents,commands} first? [Y/n] " backup_answer
backup_answer="${backup_answer:-y}"

if [[ "$backup_answer" =~ ^[Yy] ]]; then
    echo ""
    echo "Backing up to ${BACKUP_FILE} ..."
    (
        cd "$CLAUDE_DIR"
        dirs_to_zip=()
        [ -d skills ]   && dirs_to_zip+=(skills)
        [ -d agents ]   && dirs_to_zip+=(agents)
        [ -d commands ]  && dirs_to_zip+=(commands)
        if [ ${#dirs_to_zip[@]} -gt 0 ]; then
            zip -rq "$BACKUP_FILE" "${dirs_to_zip[@]}"
        fi
    )
    echo "Done. Backup saved to ${BACKUP_FILE}"
    echo ""
fi

# Final confirmation
read -rp "Proceed with migration? [y/N] " proceed
if [[ ! "$proceed" =~ ^[Yy] ]]; then
    echo "Aborted."
    exit 0
fi

echo ""

# Remove old items
for skill in "${OLD_SKILLS[@]}"; do
    target="${CLAUDE_DIR}/skills/${skill}"
    if [ -d "$target" ]; then
        rm -rf "$target"
        echo "Removed skills/${skill}/"
    fi
done

for agent in "${OLD_AGENTS[@]}"; do
    target="${CLAUDE_DIR}/agents/${agent}"
    if [ -f "$target" ]; then
        rm "$target"
        echo "Removed agents/${agent}"
    fi
done

echo ""

# Run sync
if [ ! -f "${SCRIPT_DIR}/sync.yaml" ]; then
    echo "No sync.yaml found. Copy the example first:"
    echo "  cp sync.yaml.example sync.yaml"
    echo ""
    echo "Old items have been removed. Run ./sync after setting up sync.yaml."
    exit 0
fi

echo "Running ./sync ..."
echo ""
"${SCRIPT_DIR}/sync"

echo ""
echo "Migration complete."