#!/bin/bash
set -euo pipefail

REPO="$(cd "$(dirname "$0")" && pwd)"

echo "=== Claude-Workflow Bootstrap ==="

# --- Symlinks und Berechtigungen ---

mkdir -p ~/.claude/skills
for d in "$REPO/skills/"/*/; do
    name=$(basename "$d")
    ln -sfn "$d" ~/.claude/skills/"$name"
done
echo "  Skills verlinkt"

mkdir -p ~/.claude/agents
for f in "$REPO/agents/"*.md; do
    ln -sf "$f" ~/.claude/agents/
done
echo "  Agents verlinkt"

ln -sf "$REPO/dotfiles/CLAUDE.md" ~/.claude/CLAUDE.md
ln -sf "$REPO/dotfiles/settings.json" ~/.claude/settings.json
ln -sf "$REPO/dotfiles/statusline-command.sh" ~/.claude/statusline-command.sh
ln -sf "$REPO/dotfiles/gitea-mcp-wrapper.sh" ~/.claude/gitea-mcp-wrapper.sh
chmod +x "$REPO/dotfiles/gitea-mcp-wrapper.sh"
echo "  Dotfiles verlinkt"

ln -sfn "$REPO/hooks" ~/.claude/hooks
chmod +x "$REPO/hooks/"*.sh
echo "  Hooks verlinkt und ausfuehrbar"

# --- Voraussetzungen pruefen ---

echo ""
echo "=== Voraussetzungen ==="

missing_apt=()
missing_other=()

check_cmd() {
    local cmd="$1"
    local version_info="$2"
    if command -v "$cmd" &>/dev/null; then
        echo "  OK  $cmd ($version_info)"
        return 0
    else
        echo "  FEHLT  $cmd"
        return 1
    fi
}

check_cmd "gh" "$(gh --version 2>/dev/null | head -1 || true)" \
    || missing_apt+=("gh")

check_cmd "jq" "$(jq --version 2>/dev/null || true)" \
    || missing_apt+=("jq")

check_cmd "shellcheck" "$(shellcheck --version 2>/dev/null | awk '/^version:/ {print $2}' || true)" \
    || missing_apt+=("shellcheck")

if command -v pipx &>/dev/null; then
    check_cmd "ruff" "$(ruff --version 2>/dev/null || true)" \
        || missing_other+=("pipx install ruff")
else
    if ! command -v ruff &>/dev/null; then
        echo "  FEHLT  ruff (pipx ebenfalls nicht vorhanden)"
        missing_apt+=("pipx")
        missing_other+=("pipx ensurepath" "pipx install ruff")
    else
        echo "  OK  ruff ($(ruff --version 2>/dev/null || true))"
    fi
fi

if command -v npm &>/dev/null; then
    check_cmd "markdownlint-cli2" "$(markdownlint-cli2 --version 2>/dev/null | head -1 || true)" \
        || missing_other+=("npm install -g markdownlint-cli2")
else
    if ! command -v markdownlint-cli2 &>/dev/null; then
        echo "  FEHLT  markdownlint-cli2 (npm nicht vorhanden)"
        echo "         Node.js zuerst installieren, z.B. via nvm"
        missing_other+=("# Node.js installieren: https://github.com/nvm-sh/nvm" "npm install -g markdownlint-cli2")
    else
        echo "  OK  markdownlint-cli2 ($(markdownlint-cli2 --version 2>/dev/null | head -1 || true))"
    fi
fi

if command -v go &>/dev/null; then
    if [[ -x ~/go/bin/gitea-mcp ]]; then
        echo "  OK  gitea-mcp"
    else
        echo "  FEHLT  gitea-mcp"
        missing_other+=("go install gitea.com/gitea/gitea-mcp@latest")
    fi
else
    if [[ ! -x ~/go/bin/gitea-mcp ]]; then
        echo "  FEHLT  gitea-mcp (go nicht vorhanden)"
        missing_apt+=("golang-go")
        missing_other+=("go install gitea.com/gitea/gitea-mcp@latest")
    else
        echo "  OK  gitea-mcp"
    fi
fi

# --- Claude-Code-Integrationen ---

echo ""
echo "=== Claude-Code-Integrationen ==="

if command -v claude &>/dev/null; then
    if claude mcp list 2>/dev/null | grep -q "context7"; then
        echo "  OK  context7 Plugin"
    else
        echo "  FEHLT  context7 Plugin -- in Claude Code aktivieren"
    fi

    if claude mcp list 2>/dev/null | grep -q "^gitea:"; then
        echo "  OK  gitea MCP"
    else
        echo "  FEHLT  gitea MCP"
        missing_other+=("claude mcp add --scope user gitea -- bash ~/.claude/gitea-mcp-wrapper.sh")
    fi
else
    echo "  claude CLI nicht gefunden -- MCP-Checks uebersprungen"
fi

# --- Gitea-Token ---

GITEA_TOKEN_FILE="$HOME/.config/gitea/token"

echo ""
echo "=== Gitea-Token ==="

if [[ -f "$GITEA_TOKEN_FILE" ]]; then
    echo "  OK  $GITEA_TOKEN_FILE"
else
    echo "  FEHLT  $GITEA_TOKEN_FILE"
    missing_other+=("mkdir -p ~/.config/gitea && chmod 700 ~/.config/gitea"
                    "echo 'DEIN_TOKEN' > ~/.config/gitea/token && chmod 600 ~/.config/gitea/token")
fi

# --- Zusammenfassung ---

echo ""
if [[ ${#missing_apt[@]} -eq 0 && ${#missing_other[@]} -eq 0 ]]; then
    echo "Alles vorhanden. Keine weiteren Schritte noetig."
else
    echo "=== Fehlende Pakete installieren ==="
    echo "Folgende Befehle ausfuehren:"
    echo ""

    if [[ ${#missing_apt[@]} -gt 0 ]]; then
        echo "  sudo apt-get install -y ${missing_apt[*]}"
    fi

    for cmd in "${missing_other[@]}"; do
        echo "  $cmd"
    done

    echo ""
    echo "Danach bootstrap.sh erneut ausfuehren zur Kontrolle."
fi