#!/bin/bash

source $(dirname "$0")/activate
source $(dirname "$0")/tox

set -eu

if [ "${IR_DEBUG:-}" != "" ]; then
    set -x
fi

IR_VIRTUAL_ENV=$(realpath "${IR_VIRTUAL_ENV:-.tox/infrared}")
IR_REPO="https://github.com/redhat-openstack/infrared.git"
IR_BRANCH=${IR_BRANCH:-master}
IR_SOURCE_DIR=$(realpath "${IR_SOURCE_DIR:-${IR_VIRTUAL_ENV}/infrared}")
IR_EXECUTABLE=${IR_VIRTUAL_ENV}/bin/infrared
export IR_HOME=$(realpath ${IR_HOME:-$(pwd)/.infrared/})
IR_TOBIKO_PLUGIN=$(realpath ${IR_TOBIKO_PLUGIN:-$(pwd)/roles/infrared})

IR_WORKSPACE_FILE=${IR_WORKSPACE_FILE:-$(realpath ./workspace.tgz)}
IR_WORKSPACE_URL=${IR_WORKSPACE_URL:-}


function ir {
    ir_setup
    "${IR_EXECUTABLE}" "$@"
}


function ir_setup {
    if ! ir_activate; then
        tox -e infrared --notest
        ir_activate
    fi

    if ! [ -x "${IR_EXECUTABLE}" ]; then
        git clone "${IR_REPO}" -b "${IR_BRANCH}" "${IR_SOURCE_DIR}"
        local package_name
        for package_name in pip setuptools "${IR_SOURCE_DIR}"; do
            pip install --upgrade "${package_name}"
        done

        # Cleanup IR workspaces
        rm -fR "${IR_HOME}"
        (
            # IR requires to work from its source folder
            cd "${IR_SOURCE_DIR}"

            # Install IR plugins
            "${IR_EXECUTABLE}" plugin list --available --versions || true
            "${IR_EXECUTABLE}" plugin add "${IR_TOBIKO_PLUGIN}"

            # Import IR workspace
            if [ "${IR_WORKSPACE_URL}" != "" ]; then
                local temp_file=$(mktemp)
                curl "${IR_WORKSPACE_URL}" -o "${temp_file}"
                mkdir -p $(dirname "${IR_WORKSPACE_FILE}")
                mv "${temp_file}" "${IR_WORKSPACE_FILE}"
            fi
            if [ -f "${IR_WORKSPACE_FILE}" ]; then
                "${IR_EXECUTABLE}" workspace import "${IR_WORKSPACE_FILE}"
            fi
        )
    fi

    mkdir -p "${IR_HOME}"
}


function ir_activate {
    local venv_script=${IR_VIRTUAL_ENV}/bin/activate
    if ! [ -r "${venv_script}" ]; then
        return 1
    fi

    if ! ir_is_active; then
        # Activate only once
        set +eu
        source "${venv_script}"
        set -eu
        ir_is_active
    fi
}


function ir_is_active {
    [ "$(python_prefix)" == "${IR_VIRTUAL_ENV}" ]
}


if [ $(basename "$0") == ir ]; then
    ir "$@"
fi