#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: Mon Feb 22 17:42:01 2021 +0000
#
#  https://github.com/HariSekhon/DevOps-Bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x
srcdir="$(dirname "${BASH_SOURCE[0]}")"

export TERRAFORM_VERSION=1.1.9

tfenv_list_sed(){
    sed 's/^\*[[:space:]]*//; s/(.*//; s/[[:space:]]//g'
}

tfenv_setup(){
    local version="${1:-${TERRAFORM_VERSION:-}}"
    if [ -z "$version" ]; then
        return 0
    fi
    if ! type -P tfenv &>/dev/null; then
        return 0
    fi
    if ! tfenv list | tfenv_list_sed | grep -Fxq "$version"; then
        echo "Terraform version '$version' not installed in tfenv, installing now..."
        tfenv install "$version"
    fi
    local current_version
    current_version="$(tfenv list | grep '^\*' | tfenv_list_sed)"
    if [ "$current_version" != "$version" ]; then
        # XXX: Careful, this will switch globally and could cause race conditions with other shells / scripts on the same machine
        tfenv use "$version"
    fi
}

tfenv_setup "$TERRAFORM_VERSION"

# =================================================================================
# for deployment/<environment> subdirectories, all you need in their .envrc is this
#
#   source_up
#
#   export TERRAFORM_VERSION=1.1.9
#
#   tfenv_setup "$TERRAFORM_VERSION"
#
# =================================================================================

# XXX: set these or other variables for Terraform code to find
export CLOUDFLARE_EMAIL=hari@...
export CLOUDFLARE_API_KEY=...  # generate here: https://dash.cloudflare.com/profile/api-tokens
#export CLOUDFLARE_TOKEN=...   # used by cloudflare_api.sh but not by terraform module

# export the variables for terraform
export TF_VAR_cloudflare_email="$CLOUDFLARE_EMAIL"
export TF_VAR_cloudflare_api_key="$CLOUDFLARE_API_KEY"  # must be a key, not a token using the link above

# GITHUB_* environment variables may interfere with GitHub provider, so unset them
for env_var in $(env | awk -F= '$1 ~ /GITHUB/ {print $1}'); do
    unset "$env_var"
done