#!/usr/bin/env bash
# deploy.sh – Copilot-Setup auf macOS oder Linux mit bash deployen
# Usage: bash scripts/deploy.sh

set -euo pipefail

REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
echo "=== Copilot Setup Deploy (bash) ==="
echo "Source: $REPO_DIR"

# ── 1. VS Code User-Verzeichnis ermitteln ─────────────────────────────────────
if [[ "$OSTYPE" == "darwin"* ]]; then
    VSCODE_USER="$HOME/Library/Application Support/Code/User"
    # VS Code Server (Cursor, Codium, etc.)
    VSCODE_USER_ALT="$HOME/Library/Application Support/Cursor/User"
elif [[ -d "$HOME/.vscode-server/data/User" ]]; then
    # Remote / VS Code Server
    VSCODE_USER="$HOME/.vscode-server/data/User"
else
    VSCODE_USER="$HOME/.config/Code/User"
fi

echo "VS Code User dir: $VSCODE_USER"
mkdir -p "$VSCODE_USER"

# ── 2. User settings.json ─────────────────────────────────────────────────────
if [[ -f "$VSCODE_USER/settings.json" ]]; then
    echo "  ─ settings.json exists – skipping (merge manually if needed)"
    echo "    Reference: $REPO_DIR/user-settings/settings.json"
else
    cp "$REPO_DIR/user-settings/settings.json" "$VSCODE_USER/settings.json"
    echo "  ✓ settings.json deployed"
fi

# ── 3. Prompt Files ───────────────────────────────────────────────────────────
mkdir -p "$VSCODE_USER/prompts"
for f in "$REPO_DIR/prompts/"*.prompt.md; do
    fname="$(basename "$f")"
    if [[ -f "$VSCODE_USER/prompts/$fname" ]]; then
        echo "  ─ prompts/$fname already exists, skipping"
    else
        cp "$f" "$VSCODE_USER/prompts/$fname"
        echo "  ✓ prompts/$fname deployed"
    fi
done

# ── 4. Git-Templates ──────────────────────────────────────────────────────────
GIT_TEMPLATE_DIR="$HOME/.git-templates"
mkdir -p "$GIT_TEMPLATE_DIR/.github" "$GIT_TEMPLATE_DIR/.vscode" \
         "$GIT_TEMPLATE_DIR/hooks"   "$GIT_TEMPLATE_DIR/docs" \
         "$GIT_TEMPLATE_DIR/history/summary"
cp "$REPO_DIR/git-templates/.github/copilot-instructions.md" "$GIT_TEMPLATE_DIR/.github/"
cp "$REPO_DIR/git-templates/.vscode/settings.json" "$GIT_TEMPLATE_DIR/.vscode/"
cp "$REPO_DIR/git-templates/.vscode/extensions.json" "$GIT_TEMPLATE_DIR/.vscode/"
cp "$REPO_DIR/git-templates/hooks/pre-commit" "$GIT_TEMPLATE_DIR/hooks/"
chmod +x "$GIT_TEMPLATE_DIR/hooks/pre-commit"
cp "$REPO_DIR/git-templates/docs/USER.md"       "$GIT_TEMPLATE_DIR/docs/"
cp "$REPO_DIR/git-templates/docs/ADMIN.md"      "$GIT_TEMPLATE_DIR/docs/"
cp "$REPO_DIR/git-templates/docs/MAINTAINER.md" "$GIT_TEMPLATE_DIR/docs/"
cp "$REPO_DIR/git-templates/history/summary/PROJECT_CONTEXT.md" "$GIT_TEMPLATE_DIR/history/summary/"
git config --global init.templateDir "$GIT_TEMPLATE_DIR"
echo "  ✓ git-templates deployed → $GIT_TEMPLATE_DIR"
echo "  ✓ git config init.templateDir set"

# ── 5. Bootstrap- & Update-Skripte ───────────────────────────────────────────
mkdir -p "$HOME/.local/bin"
cp "$REPO_DIR/scripts/copilot-bootstrap.sh" "$HOME/.local/bin/copilot-bootstrap.sh"
chmod +x "$HOME/.local/bin/copilot-bootstrap.sh"
echo "  ✓ copilot-bootstrap.sh installed to ~/.local/bin/"
if [[ -f "$REPO_DIR/scripts/copilot-bootstrap.fish" ]]; then
    cp "$REPO_DIR/scripts/copilot-bootstrap.fish" "$HOME/.local/bin/copilot-bootstrap.fish"
    chmod +x "$HOME/.local/bin/copilot-bootstrap.fish"
    echo "  ✓ copilot-bootstrap.fish installed to ~/.local/bin/"
fi
cp "$REPO_DIR/scripts/copilot-update.sh" "$HOME/.local/bin/copilot-update.sh"
chmod +x "$HOME/.local/bin/copilot-update.sh"
echo "  ✓ copilot-update.sh installed to ~/.local/bin/"
if [[ -f "$REPO_DIR/scripts/copilot-update.fish" ]]; then
    cp "$REPO_DIR/scripts/copilot-update.fish" "$HOME/.local/bin/copilot-update.fish"
    chmod +x "$HOME/.local/bin/copilot-update.fish"
    echo "  ✓ copilot-update.fish installed to ~/.local/bin/"
fi

# ── 6. Git-Aliase: init → auto-bootstrap | copilot-update → updater ──────────
# Verwendet git --exec-path um Rekursion zu vermeiden (kein Alias-Loop).
git config --global alias.init '!f() { dir=.; for a in "$@"; do case "$a" in -*) ;; *) dir="$a" ;; esac; done; "$(git --exec-path)/git-init" "$@" && "$HOME/.local/bin/copilot-bootstrap.sh" "$dir"; }; f'
echo "  ✓ git alias 'init' gesetzt (führt copilot-bootstrap.sh automatisch aus)"
git config --global alias.copilot-update '!~/.local/bin/copilot-update.sh'
echo "  ✓ git alias 'copilot-update' gesetzt (aktualisiert Templates & Prompts)"

# ── 7. post-merge + post-commit Hook für dieses Setup-Repo ───────────────────
# Nach jedem 'git pull' auf dem Setup-Repo selbst wird deploy.sh automatisch
# ausgeführt, sodass Templates immer auf dem neuesten Stand sind.
# post-commit generiert die History-Logs nach jedem Commit.
SELF_HOOKS_DIR="$REPO_DIR/.git/hooks"
if [[ -d "$SELF_HOOKS_DIR" ]]; then
    cat > "$SELF_HOOKS_DIR/post-merge" << 'HOOK'
#!/usr/bin/env sh
# post-merge – Auto-Deploy nach git pull auf dem Setup-Repo
echo ""
echo "  [post-merge] Setup-Repo aktualisiert – deploye Templates neu..."
SCRIPT_DIR="$(cd "$(dirname "$0")/../../scripts" && pwd)"
bash "$SCRIPT_DIR/deploy.sh"
HOOK
    chmod +x "$SELF_HOOKS_DIR/post-merge"
    echo "  ✓ post-merge Hook im Setup-Repo installiert (auto-deploy nach git pull)"
    # post-commit aus git-templates kopieren (History-Logs)
    cp "$REPO_DIR/git-templates/hooks/post-commit" "$SELF_HOOKS_DIR/post-commit"
    chmod +x "$SELF_HOOKS_DIR/post-commit"
    echo "  ✓ post-commit Hook im Setup-Repo installiert (History-Logs)"
fi

echo ""
echo "=== Done ==="
echo "Next: Activate Settings Sync in VS Code (Cmd+Shift+P → 'Settings Sync: Turn On')"
echo "      Templates aktuell halten: git copilot-update  (in jedem Repo)"