# Bash autocomplete script for `openstack-ansible` command

source /usr/local/bin/openstack-ansible.rc
COLLECTION_PATH="${ANSIBLE_COLLECTIONS_PATH:-/etc/ansible}/ansible_collections/"


_ansible_hosts_inventory(){
    local hosts current_time cache_creation cache_age cache_lifetime cache_path

    cache_lifetime=86400
    cache_path="${OSA_CONFIG_DIR}/ansible_facts/openstack-ansible-hosts-completion"

    if [ -f ${cache_path} ]; then
        cache_creation=$(stat --printf="%Y" ${cache_path})
        cache_age=$(($(date +%s) - cache_creation))

        if [[ $cache_age -gt $cache_lifetime ]]; then
            rm ${cache_path}
            hosts=$(ansible all --list-hosts 2>/dev/null | sed '1d' | awk '{ print $1 }' | tee ${cache_path})
        else
            hosts=$(cat ${cache_path})
        fi
    else
        cache_path_dirname=$(dirname ${cache_path})
        if [ ! -d ${cache_path_dirname} ]; then
            mkdir -p ${cache_path_dirname}
        fi
        hosts=$(ansible all --list-hosts 2>/dev/null | sed '1d' | awk '{ print $1 }' | tee ${cache_path})
    fi
    echo "${hosts}"
}


_normalize_collection_playbook_paths(){
    local converted_paths=()
    for path in "$@"; do
        # Remove leading directory path completely
        path=${path##$COLLECTION_PATH}

        # Remove "playbooks" folder
        path=${path//playbooks\//}

        # Remove ".yml" extension (if present)
        path=${path%.yml}

        # Replace slashes with dots
        path=${path//\//.}

        # Append the converted path
        converted_paths+=("$path")
    done
    echo "${converted_paths[@]}"
}


_openstack_ansible() {
    local cur prev opts short_opts completions playbooks
    COMPREPLY=()
    # Get the current word and the previous word
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    opts="--ask-become-pass --ask-pass --ask-vault-pass
          --ask-vault-password
          --become --become-method --become-user
          --become-password-file --connection-password-file
          --check --connection --diff --extra-vars
          --flush-cache --force-handlers --forks --help
          --inventory --limit --list-hosts
          --list-tags --list-tasks --module-path
          --private-key --skip-tags --start-at-task
          --step --syntax-check
          --scp-extra-args --sftp-extra-args
          --ssh-common-args --ssh-extra-args
          --tags --timeout
          --user --vault-id --vault-password-file
          --verbose --version"
    short_opts="-b -C -c -D -e -f -h -i -J -K -k -l -M  -T -t -u -v"

    if [[ "$cur" == -* ]]; then
        completions=$(echo ${short_opts} ${opts})
    elif [[ "$cur" == --* ]]; then
        completions=$(echo ${opts})
    elif [[ "$prev" == "-l" ]] || [[ "$prev" == "--limit" ]]; then
        completions=$(_ansible_hosts_inventory | grep -i "${cur}")
    else
        playbooks=$(find ${COLLECTION_PATH} -type f -name "*.yml" | grep playbooks)
        completions=$(_normalize_collection_playbook_paths ${playbooks[@]} | grep -i "${cur}")
    fi
    COMPREPLY=($(compgen -W '${completions}' -- ${cur}))
}


complete -F _openstack_ansible openstack-ansible