#!/bin/bash
set -e

if [ -z "$NOW_TOKEN" ]; then
    echo "NOW_TOKEN is not set; skipping docs deployment"
else
    if [[ -e primer-version.txt ]]; then
        version=$(cat primer-version.txt)
    else
        version=$(jq -r .version modules/primer/package.json)
    fi

    cd docs
    npm run sync

    actual=$(jq -r .dependencies.primer package.json)

    if [[ "$version" != "$actual" ]]; then
        # here, we need to manually update the primer dependency
        # version to the one that we published
        echo "primer has '$version' in package.json; docs wants '$actual'"
        jq ".dependencies.primer = \"$version\"" package.json > package.json.tmp
        mv package.json.tmp package.json
    fi

    if [[ $TRAVIS_EVENT_TYPE = "pull_request" ]]; then
        branch=$TRAVIS_PULL_REQUEST_BRANCH
    else
        branch=$TRAVIS_BRANCH
    fi

    # add metadata to now deployments so that we can find them more easily
    meta_args="-m branch=$branch -m version=$version"

    npx commit-status pending docs "deploying v$version docs..."

    echo "deploying..."
    now_args="--token=$NOW_TOKEN"
    now "$now_args" "$meta_args" | tee now-url.txt
    url=$(cat now-url.txt)
    npx commit-status success docs "v$version docs: $url" "$url"

    if [[ "$branch" = "master" ]]; then
        alias=$(jq -r .alias now.json)
    else
        alias="primer-css-${branch//\./-}.now.sh"
    fi
    echo "aliasing to '$alias'..."
    now "$now_args" alias "$url" "$alias"
    npx commit-status success docs "v$version docs: $alias" "https://$alias"

    if [[ "$CHECK_LINKS" = "1" ]]; then
        echo
        echo "Running script/check-links in $(pwd)..."
        echo
        script/check-links -v -m=5 "https://$alias/css" || {
            echo
            echo "⚠️  Link check failed! ⚠️"
            echo
            echo "Check the report above for more info, and/or run:"
            echo
            echo "    script/check-links http://localhost:3000 -v"
            echo
            echo "locally for more info."
            exit 1
        }
    else
        echo "Set CHECK_LINKS=1 to check links on Travis"
    fi
fi