#!/usr/bin/env fish
# deploy.fish – Copilot-Setup auf Linux mit fish-Shell deployen
# Usage:
#   fish scripts/deploy.fish                          # Standard-Deploy (nicht-invasiv)
#   fish scripts/deploy.fish --with-self-update-hook  # + post-merge Auto-Deploy im Setup-Repo
#
# Hinweis: Setzt KEINEN globalen 'git init'-Alias und KEIN init.templateDir.
# Standard-'git init'/'git clone' bleiben unberuehrt. Opt-in: 'git init-copilot'.

set WITH_SELF_HOOK 0
for arg in $argv
    switch $arg
        case --with-self-update-hook
            set WITH_SELF_HOOK 1
        case '*'
            echo "Unbekanntes Argument: $arg" >&2
            exit 2
    end
end

set REPO_DIR (dirname (status filename))/..
set REPO_DIR (realpath $REPO_DIR)

echo "=== Copilot Setup Deploy (Linux/fish) ==="
echo "Source: $REPO_DIR"

# VS Code User-Verzeichnis portabel ueber Editionen/OS ermitteln (identisch zu copilot-update.fish)
function detect_vscode_user_dir
    for d in \
        "$HOME/.vscode-server/data/User" \
        "$HOME/.vscode-server-insiders/data/User" \
        "$HOME/Library/Application Support/Code/User" \
        "$HOME/Library/Application Support/Code - Insiders/User" \
        "$HOME/Library/Application Support/VSCodium/User" \
        "$HOME/Library/Application Support/Cursor/User" \
        "$HOME/.config/Code/User" \
        "$HOME/.config/Code - Insiders/User" \
        "$HOME/.config/VSCodium/User" \
        "$HOME/.config/Cursor/User" \
        "$HOME/.var/app/com.visualstudio.code/config/Code/User" \
        "/mnt/c/Users/$USER/AppData/Roaming/Code/User" \
        "/mnt/c/Users/$USER/AppData/Roaming/Code - Insiders/User"
        if test -d "$d"
            echo $d
            return 0
        end
    end
    switch (uname -s)
        case Darwin
            echo "$HOME/Library/Application Support/Code/User"
        case '*'
            echo "$HOME/.config/Code/User"
    end
end

# ── 1. VS Code User-Verzeichnis ermitteln ─────────────────────────────────────
set VSCODE_USER (detect_vscode_user_dir)
echo "VS Code User dir: $VSCODE_USER"

# ── 2. User settings.json mergen / anlegen ────────────────────────────────────
if test -f $VSCODE_USER/settings.json
    echo "  ─ settings.json exists – skipping (merge manually if needed)"
    echo "    Reference: $REPO_DIR/user-settings/settings.json"
else
    mkdir -p $VSCODE_USER
    cp $REPO_DIR/user-settings/settings.json $VSCODE_USER/settings.json
    echo "  ✓ settings.json deployed"
end

# ── 3. Prompt Files ───────────────────────────────────────────────────────────
mkdir -p $VSCODE_USER/prompts
for f in $REPO_DIR/prompts/*.prompt.md
    set fname (basename $f)
    if test -f $VSCODE_USER/prompts/$fname
        echo "  ─ prompts/$fname already exists, skipping"
    else
        cp $f $VSCODE_USER/prompts/$fname
        echo "  ✓ prompts/$fname deployed"
    end
end

# ── 4. Git-Templates ──────────────────────────────────────────────────────────
set 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/docs/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/docs/history/summary/PROJECT_CONTEXT.md $GIT_TEMPLATE_DIR/docs/history/summary/
echo "  ✓ git-templates deployed → $GIT_TEMPLATE_DIR"
# init.templateDir bewusst NICHT global setzen (sonst erbt jeder git init/clone den Gate).
set CURRENT_TPL (git config --global --get init.templateDir 2>/dev/null)
if test "$CURRENT_TPL" = "$GIT_TEMPLATE_DIR"
    git config --global --unset init.templateDir
    echo "  ✓ altes globales init.templateDir entfernt (nicht mehr invasiv)"
else
    echo "  ─ init.templateDir nicht global gesetzt (gewollt)"
end

# ── 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/"
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/"
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 test -f $REPO_DIR/scripts/copilot-update.fish
    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/"
end

# ── 6. Git-Aliase: init → auto-bootstrap | copilot-update → updater ──────────
# Verwendet git --exec-path um Rekursion zu vermeiden (kein Alias-Loop).
# Kein Override des Standard-'git init' mehr. Frueheren invasiven Alias entfernen.
set CURRENT_INIT_ALIAS (git config --global --get alias.init 2>/dev/null)
if string match -q '*copilot-bootstrap*' -- "$CURRENT_INIT_ALIAS"
    git config --global --unset alias.init
    echo "  ✓ alter invasiver 'git init'-Alias entfernt"
end
# Opt-in: explizites 'git init-copilot' macht git init + bootstrap.
git config --global alias.init-copilot '!f() { dir=.; for a in "$@"; 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-copilot' gesetzt (opt-in: git init + copilot-bootstrap)"
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 ───────────────────
set SELF_HOOKS_DIR $REPO_DIR/.git/hooks
if test $WITH_SELF_HOOK -eq 1
    if test -d $SELF_HOOKS_DIR
        echo '#!/usr/bin/env sh
# post-merge – Auto-Deploy nach git pull auf dem Setup-Repo
echo ""
echo "  [post-merge] Setup-Repo aktualisiert – deploye Templates neu..."
SCRIPT_DIR="$(cd "$(dirname "$0")/../../scripts" && pwd)"
bash "$SCRIPT_DIR/deploy.sh"' > $SELF_HOOKS_DIR/post-merge
        chmod +x $SELF_HOOKS_DIR/post-merge
        echo "  ✓ post-merge Hook im Setup-Repo installiert (auto-deploy nach git pull)"
    end
else
    echo "  ─ post-merge Auto-Deploy nicht installiert (opt-in: --with-self-update-hook)"
end

echo ""
echo "=== Done ==="
echo "Next: Activate Settings Sync in VS Code (Ctrl+Shift+P → 'Settings Sync: Turn On')"
echo "      Neues Repo mit Copilot-Setup:  git init-copilot [pfad]"
echo "      Bestehendes Repo ausstatten:   copilot-bootstrap.sh [pfad]"
echo "      Templates aktuell halten:      git copilot-update  (in jedem Repo)"