#!/bin/bash
set -e

if [[ -a ".env" ]]; then
    source .env
fi

function help() {
    echo
    echo "task <command> [options]"
    echo
    echo "commands:"
    echo

    # Define column widths
    cmd_width=14
    opt_width=6
    desc_width=40

    # Print table header
    printf "| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n" "Command" "Option" "Description"
    echo "|$(printf '%*s' $((cmd_width + 2)) '' | tr ' ' '-')|$(printf '%*s' $((opt_width + 2)) '' | tr ' ' '-')|$(printf '%*s' $((desc_width + 2)) '' | tr ' ' '-')|"

    # Print table rows
    printf "| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n" "start-kind" "" "Start kind Kubernetes cluster."
    printf "| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n" "start-minikube" "" "Start minikube Kubernetes cluster."
    printf "| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n" "odoo-apply" "" "Apply the Odoo K8s manifests."
    printf "| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n" "test-k8s" "" "Test Kubernetes environment."
    printf "| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n" "install" "" "Setup the local environment."
    printf "| %-${cmd_width}s | %-${opt_width}s | %-${desc_width}s |\n" "version" "" "Show version of required tools."

    echo
}

function start-kind() {
    echo "Start kind."
    kind create cluster
}

function start-minikube() {
    echo "Start minikube."
    minikube start
}

function odoo-apply() {
    echo "Deploy Postgres:"
    kubectl apply -f odoo/postgres-cm.yaml
    kubectl apply -f odoo/postgres-pvc.yaml
    kubectl apply -f odoo/postgres-deploy.yaml
    kubectl apply -f odoo/postgres-svc.yaml

    echo -e "\nDeploy Odoo:"
    kubectl apply -f odoo/odoo-cm.yaml
    kubectl apply -f odoo/odoo-deploy.yaml
    kubectl apply -f odoo/odoo-svc.yaml

    echo -e "\nWait until resources are ready."
    sleep 8

    ODOO_POD=$(kubectl get pods -o=name --all-namespaces | grep odoo)
    POSTGRES_POD=$(kubectl get pods -o=name --all-namespaces | grep postgres)

    echo -e "\nWait for $ODOO_POD and $POSTGRES_POD pods to be running:"
    kubectl wait --for=condition=Ready "$ODOO_POD" "$POSTGRES_POD" --timeout=60s
}

function test-k8s() {
    start-kind
    odoo-apply
}

function version() {
    minikube version
    kind version
}

if declare -f "$1" > /dev/null; then
    "$1" "${@:2}"
else
    case "$1" in
        *)
            echo "Unknown command: $1"
            help
            exit 1
            ;;
    esac
fi