#!/bin/bash
# Claude Settings Setup Script
# Richtet die Claude Code Konfiguration auf einer neuen Maschine ein
#
# Verwendung:
#   curl -fsSL https://gitea.egonetix.de/root/claude_settings/raw/branch/main/setup-machine.sh | bash
# oder:
#   cd ~/dotfiles/claude_settings && ./setup-machine.sh

set -e

REPO_URL="ssh://git@gitea.egonetix.de:222/root/claude_settings.git"
REPO_DIR="$HOME/dotfiles/claude_settings"
CLAUDE_DIR="$HOME/.claude"
TEA_VERSION="0.9.2"

echo "=== Claude Settings Setup ==="
echo ""

# Farben
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m' # No Color

success() { echo -e "${GREEN}✓${NC} $1"; }
warn() { echo -e "${YELLOW}⚠${NC} $1"; }
error() { echo -e "${RED}✗${NC} $1"; }

# 1. Repo clonen oder updaten
echo "1. Settings-Repo..."
if [[ -d "$REPO_DIR/.git" ]]; then
    cd "$REPO_DIR"
    git fetch origin --quiet
    LOCAL=$(git rev-parse HEAD)
    REMOTE=$(git rev-parse origin/main)
    if [[ "$LOCAL" != "$REMOTE" ]]; then
        git pull origin main --quiet
        success "Repo aktualisiert"
    else
        success "Repo ist aktuell"
    fi
else
    mkdir -p "$(dirname "$REPO_DIR")"
    git clone "$REPO_URL" "$REPO_DIR" --quiet
    success "Repo geclont nach $REPO_DIR"
fi

# 2. ~/.claude Verzeichnis erstellen
echo ""
echo "2. Claude-Verzeichnis..."
mkdir -p "$CLAUDE_DIR"
success "~/.claude existiert"

# 3. Symlinks erstellen
echo ""
echo "3. Symlinks erstellen..."

create_symlink() {
    local source="$1"
    local target="$2"
    local name="$3"

    if [[ -L "$target" ]]; then
        # Symlink existiert - prüfe ob korrekt
        if [[ "$(readlink "$target")" == "$source" ]]; then
            success "$name (bereits korrekt)"
            return
        else
            rm "$target"
        fi
    elif [[ -e "$target" ]]; then
        # Datei/Ordner existiert - Backup erstellen
        mv "$target" "${target}.backup.$(date +%Y%m%d)"
        warn "$name: Backup erstellt"
    fi

    ln -sf "$source" "$target"
    success "$name"
}

create_symlink "$REPO_DIR/CLAUDE.md" "$CLAUDE_DIR/CLAUDE.md" "CLAUDE.md"
create_symlink "$REPO_DIR/settings.json" "$CLAUDE_DIR/settings.json" "settings.json"
create_symlink "$REPO_DIR/hooks" "$CLAUDE_DIR/hooks" "hooks/"
create_symlink "$REPO_DIR/skills" "$CLAUDE_DIR/skills" "skills/"
create_symlink "$REPO_DIR/templates" "$CLAUDE_DIR/templates" "templates/"
create_symlink "$REPO_DIR/plans" "$CLAUDE_DIR/plans" "plans/"
create_symlink "$REPO_DIR/statusline-command.sh" "$CLAUDE_DIR/statusline-command.sh" "statusline-command.sh"

# 4. Tea CLI installieren
echo ""
echo "4. Tea CLI (Gitea)..."
TEA_BIN="$HOME/.local/bin/tea"
mkdir -p "$HOME/.local/bin"

if [[ -x "$TEA_BIN" ]]; then
    CURRENT_VERSION=$("$TEA_BIN" --version 2>/dev/null | grep -oP 'Version: \K[0-9.]+' || echo "unknown")
    if [[ "$CURRENT_VERSION" == "$TEA_VERSION" ]]; then
        success "Tea CLI v$TEA_VERSION bereits installiert"
    else
        curl -fsSL "https://dl.gitea.io/tea/$TEA_VERSION/tea-$TEA_VERSION-linux-amd64" -o "$TEA_BIN"
        chmod +x "$TEA_BIN"
        success "Tea CLI aktualisiert auf v$TEA_VERSION"
    fi
else
    curl -fsSL "https://dl.gitea.io/tea/$TEA_VERSION/tea-$TEA_VERSION-linux-amd64" -o "$TEA_BIN"
    chmod +x "$TEA_BIN"
    success "Tea CLI v$TEA_VERSION installiert"
fi

# 5. PATH prüfen
echo ""
echo "5. PATH prüfen..."
if echo "$PATH" | tr ':' '\n' | grep -q "$HOME/.local/bin"; then
    success "~/.local/bin ist im PATH"
else
    warn "~/.local/bin ist NICHT im PATH"
    echo "   Füge zu ~/.bashrc oder ~/.zshrc hinzu:"
    echo '   export PATH="$HOME/.local/bin:$PATH"'
fi

# 6. Tea Login Status
echo ""
echo "6. Tea Login Status..."
if "$TEA_BIN" login list 2>/dev/null | grep -q "gitea"; then
    success "Tea ist bei Gitea eingeloggt"
else
    warn "Tea ist NICHT eingeloggt"
    echo ""
    echo "   Führe aus:"
    echo "   tea login add --url https://gitea.egonetix.de --token <DEIN_TOKEN> --name gitea"
    echo ""
    echo "   Token erstellen: https://gitea.egonetix.de/user/settings/applications"
fi

# Zusammenfassung
echo ""
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
echo "Setup abgeschlossen auf: $(hostname)"
echo ""
echo "Nächste Schritte:"
echo "1. Terminal neu starten (oder 'source ~/.bashrc')"
echo "2. Tea Login konfigurieren (falls noch nicht geschehen)"
echo "3. Claude Code starten: claude"
echo ""
echo "Skills verfügbar:"
echo "  /session-start  - Session starten"
echo "  /session-end    - Session beenden"
echo "  /new-project    - Neues Projekt anlegen"
echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"