#!/usr/bin/env bash

set -eu

TTY="${TTY:-}"
if [[ ! -t 1 ]]; then
  TTY="-T"
fi

# Build the website within the continuous integration (CI) pipeline.
function ci:build {
  nix develop --command yarn
  nix develop --command yarn build
}

# Deploy the website within the continuous integration (CI) pipeline.
function ci:deploy {
  rsync -r -avhP --delete dist/* opdavies@104.248.165.137:/srv/oliverdavies.uk
}

# Create a new daily email.
function create-daily {
  local date="${1}"
  local title="${2}"

  if [ "${date}" == "next" ]; then
    next_date=$(ls -1 src/content/daily-email | tail -n 1 | tr -d '.md' | xargs -I {} date +%Y-%m-%d -d '{} +1 day')
  else
    next_date="${date}"
  fi

  filepath="src/content/daily-email/${next_date}.md"

  shift 1

  # Generate the title and slug.
  title="${*}"
  slug=$(echo "${title}" | \
    tr '[:upper:]' '[:lower:]' | \
    sed 's/[^a-z0-9]/-/g' | \
    sed 's/\-\-+/-/g' | \
    sed 's/^\-//;s/\-$//')

  # Create the file.
  cp -f --no-clobber stub.md "${filepath}"

  date=$(date -d "${next_date}" +%Y-%m-%d)
  day=$(date -d "${next_date}" +%d)
  month=$(date -d "${next_date}" +%m)
  year=$(date -d "${next_date}" +%Y)

  # Replace the placeholders.
  sed -i "s/{{ date }}/${date}/" "${filepath}"
  sed -i "s/{{ title }}/${title}/" "${filepath}"
  sed -i "s#{{ permalink }}#archive/${year}/${month}/${day}/${slug}#" "${filepath}"

  # Create a commit with the appropriate date in the message
  git add "${filepath}"
  git commit --quiet -m "daily-email: add ${date}

${title}"

  echo "${filepath}"
}

# Display a list of all available commands.
function help {
  printf "%s <task> args\n\nTasks:\n" "${0}"

  compgen -A function | grep -v "^_" | cat -n

  printf "\nExtended help:\n  Each task has comments for general usage\n"
}

TIMEFORMAT=$'\nTask completed in %3lR'
time "${@:-help}"