#!/usr/bin/env bash
set -euo pipefail

# Applications opened from a file manager do not inherit variables exported by
# an interactive shell (for example GEMINI_API_KEY from ~/.zshrc).  Re-enter
# through the user's shell once so its startup file can provide those values.
if [[ -z "${GEMINI_API_KEY:-}" && -z "${COPIENATOR_GUI_SHELL_LOADED:-}" && -x "${SHELL:-}" ]]; then
    export COPIENATOR_GUI_SHELL_LOADED=1
    exec "$SHELL" -ic 'exec "$@"' copienator-gui-shell "$0" "$@"
fi

# With no arguments, choose the newest visible immediate subfolder by mtime.
if [[ $# -eq 0 ]]; then
    newest=""
    for candidate in "$PWD"/*/; do
        [[ -d "$candidate" ]] || continue
        folder="${candidate%/}"
        folder="${folder##*/}"
        case "$folder" in
            copienator|copienator_gui|tests|OLD|__pycache__|build|dist|*.egg-info|venv|env|node_modules)
                continue
                ;;
        esac
        if [[ -z "$newest" || "$candidate" -nt "$newest" ]]; then
            newest="$candidate"
        fi
    done
    if [[ -n "$newest" ]]; then
        set -- "${newest%/}"
    fi
fi

# Resolve the evaluation before changing to the project directory.
if [[ $# -gt 0 && "$1" != -* && "$1" != /* ]]; then
    evaluation="$PWD/$1"
    shift
    set -- "$evaluation" "$@"
fi
repository="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
cd -- "$repository"

if [[ -x "$repository/.venv/bin/python" ]]; then
    python_command="$repository/.venv/bin/python"
else
    python_command="python3"
fi
exec "$python_command" -m copienator_gui "$@"