#!/usr/bin/env bash

set -euo pipefail

repo_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
commands_dir="$repo_dir/config/local/share/vicinae/scripts"
work="$(mktemp -d /tmp/panama-commands.XXXXXX)"
dispatch_log="$work/dispatch.log"

fail() {
    printf 'Panama commands contract: %s\n' "$1" >&2
    exit 1
}

cleanup() {
    rm -rf "$work"
}
trap cleanup EXIT

declare -A expected=(
    [open-control-center]=control-center
    [open-notifications]=notifications
    [open-calendar]=calendar
    [open-clipboard]=clipboard
    [open-mission-control]=overview
    [open-settings]=settings
    [check-system-health]=health
    [toggle-dnd]=dnd
    [toggle-caffeine]=caffeine
    [toggle-night-light]=night-light
    [start-focus]=focus-start
    [end-focus]=focus-end
    [capture]=capture
    [screen-intelligence]=intelligence
    [quick-screenshot]=screenshot
    [toggle-microphone]=microphone
    [open-prism-gallery]=gallery
    [restart-shell]=restart-shell
)

# The per-page settings commands are generated from the settings page list, so
# they are enumerated from that list rather than restated here -- a hand-written
# copy would have to be edited every time a page is added, which is exactly the
# kind of second list this generator exists to avoid.
sidebar="$repo_dir/config/dot/quickshell/modules/settings/SettingsSidebar.qml"
while read -r page; do
    [[ -n "$page" ]] || continue
    [[ "$page" == "home" ]] && continue
    expected[settings-$page]="settings-page $page"
done < <(grep -oE '\{ page: "[a-z-]+"' "$sidebar" | sed 's/.*"\([a-z-]*\)"/\1/')

(( ${#expected[@]} > 18 )) || fail 'no generated per-page commands were found; run scripts/panama-settings-commands'

# Commands that do not go through panama-action, and should not.
#
# Every command above asks the shell to do something, so routing them through
# one dispatcher is what keeps that surface small. search-web is a different
# animal: it takes a query and opens a browser, and neither half needs the
# shell. Sending it through panama-action would mean a web search stops working
# when Quickshell is down -- which is exactly when somebody is reaching for the
# launcher to look up what went wrong.
#
# The project commands are the same shape: they record or restore a window
# layout, which is panama-project's job and involves the shell not at all.
#
# They are still commands, so everything else below applies to them: a title,
# a description, search vocabulary, the Panama icon, and closing quietly.
#
# The OS-parity commands are standalone for the same reason. A power menu that
# needs the shell running is a power menu you cannot reach when the shell is
# what broke; the pick-lists render through `vicinae dmenu` and act through
# hyprctl; reminders are systemd timers. None of them has anything to ask the
# shell for, and routing them through panama-action would only add a way for
# them to stop working.
declare -a standalone=(
    search-web save-project open-project
    lock-screen suspend-system log-out reboot-system power-off
    remind-me list-reminders pick-color
    switch-window force-quit-window kill-process ssh-hosts recent-files
    copy-password
)

# Generated commands must match their source. A stale command dispatches to a
# page that has been renamed or removed, and the launcher reports nothing wrong.
"$repo_dir/config/dot/quickshell/scripts/panama-settings-commands" --check >/dev/null \
    || fail 'the generated per-page commands are stale; run scripts/panama-settings-commands' 

mkdir -p "$work/home/.config/quickshell/scripts"
cat >"$work/home/.config/quickshell/scripts/panama-action" <<'EOF'
#!/usr/bin/env bash
printf '%s\n' "$*" >>"$PANAMA_COMMAND_TEST_LOG"
EOF
chmod +x "$work/home/.config/quickshell/scripts/panama-action"

[[ -d "$commands_dir" ]] || fail 'Vicinae command directory is missing'

# Every file in the directory, not a glob on an extension. These scripts carry
# none: a shebang and the executable bit already select the interpreter, and an
# extension is one more thing that has to stay in sync -- which it did not.
mapfile -t actual_files < <(find "$commands_dir" -maxdepth 1 -type f -printf '%f\n' | sort)
declared=$(( ${#expected[@]} + ${#standalone[@]} ))
[[ ${#actual_files[@]} -eq $declared ]] \
    || fail "expected $declared commands, found ${#actual_files[@]}"

declare -A seen_titles=()
for script_name in "${!expected[@]}" "${standalone[@]}"; do
    script="$commands_dir/$script_name"
    [[ -x "$script" ]] || fail "$script_name is missing or not executable"

    vicinae script check "$script" >/dev/null \
        || fail "$script_name is rejected by Vicinae"

    title="$(sed -n 's/^# @vicinae.title //p' "$script")"
    # No product prefix: this is the desktop's own settings, not a third-party
    # add-on announcing itself in someone else's launcher. Uniqueness still
    # matters, because two commands with one title are indistinguishable there.
    [[ -n $title ]] || fail "$script_name has no title"
    [[ $title != Panama* ]] || fail "$script_name still carries the product prefix: $title"
    [[ -z ${seen_titles[$title]+x} ]] || fail "duplicate launcher title: $title"
    seen_titles[$title]=1

    grep -Fxq '# @vicinae.mode silent' "$script" \
        || fail "$script_name does not close quietly after success"
    grep -Fq '# @vicinae.description ' "$script" \
        || fail "$script_name has no searchable description"
    grep -Fq '# @vicinae.keywords ' "$script" \
        || fail "$script_name has no search vocabulary"
    grep -Fxq '# @vicinae.icon ../../icons/hicolor/scalable/apps/panama-settings.svg' "$script" \
        || fail "$script_name does not use the Panama application identity"

    if [[ $script_name == check-system-health ]]; then
        [[ $title == 'Check System Health' ]] \
            || fail "health command has the wrong title: $title"
        grep -Fxq '# @vicinae.schemaVersion 1' "$script" \
            || fail 'health command does not use schema version 1'
        grep -Fxq '# @vicinae.keywords ["health", "doctor", "repair", "services"]' "$script" \
            || fail 'health command has the wrong search vocabulary'
        grep -Fxq 'exec "$HOME/.config/quickshell/scripts/panama-action" health' "$script" \
            || fail 'health command bypasses the stable dispatcher path'
    fi

    # A standalone command has nothing to dispatch, and running it would open a
    # browser at whoever is running the tests.
    if [[ -z ${expected[$script_name]+x} ]]; then
        if grep -Fq 'panama-action' "$script"; then
            fail "$script_name is listed as standalone but goes through panama-action"
        fi
        continue
    fi

    : >"$dispatch_log"
    HOME="$work/home" PANAMA_COMMAND_TEST_LOG="$dispatch_log" "$script"
    dispatched="$(cat "$dispatch_log")"
    [[ $dispatched == "${expected[$script_name]}" ]] \
        || fail "$script_name dispatched [$dispatched], expected [${expected[$script_name]}]"
done

printf 'Panama commands contract: PASS (%d commands)\n' "$declared"