#!/bin/bash

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##
## Copyright (C) 2017 The Qt Company Ltd.
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## This file is part of the provisioning scripts of the Qt Toolkit.
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## $QT_BEGIN_LICENSE:LGPL21$
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# shellcheck source=try_catch.sh
source "${BASH_SOURCE%/*}/try_catch.sh"

ExceptionCreateTmpFile=100
ExceptionDownloadPrimaryUrl=101
ExceptionDownloadAltUrl=102
ExceptionSHA1=103
ExceptionInstallerPKG=104
ExceptionDeleteTmpFile=105


function InstallPKGFromURL {
    url=$1
    url_alt=$2
    expectedSha1=$3
    targetDirectory=$4

    try
    (
        echo "Creating temporary file"
        targetFile=$(mktemp "$TMPDIR$(uuidgen).pkg") || trow $ExceptionCreateTmpFile
        try
        (
            echo "Downloading PKG from primary URL '$url'"
            curl --fail -L --retry 5 --retry-delay 5 -o "$targetFile" "$url" || throw $ExceptionDownloadPrimaryUrl
        )
        catch || {
            case $ex_code in
                $ExceptionDownloadPrimaryUrl)
                    echo "Failed to download '$url' multiple times"
                    echo "Downloading PKG from alternative URL '$url_alt'"
                    curl --fail -L --retry 5 --retry-delay 5 -o "$targetFile" "$url_alt" || throw $ExceptionDownloadAltUrl
                ;;
            esac
        }
        echo "Checking SHA1 on PKG '$targetFile'"
        echo "$expectedSha1 *$targetFile" | /usr/bin/shasum --check || throw $ExceptionSHA1
        echo "Run installer on PKG"
        sudo installer -package "$targetFile" -target "$targetDirectory" || throw $ExceptionInstallerPKG
        echo "Removing file '$targetFile'"
        rm "$targetFile" || throw $ExceptionDeleteTmpFile
    )

    catch || {
        case $ex_code in
            $ExceptionCreateTmpFile)
                echo "Failed to create temporary file"
                exit 1;
            ;;
            $ExceptionDownloadAltUrl)
                echo "Failed downloading PKG from primary and alternative URLs"
                exit 1;
            ;;
            $ExceptionSHA1)
                echo "Failed to check sha1sum."
                exit 1;
            ;;
            $ExceptionInstallerPKG)
                echo "Failed running installer on PKG."
                exit 1;
            ;;
            $ExceptionDeleteTmpFile)
                echo "Failed deleting temporary file."
                exit 1;
            ;;
        esac
    }
}