#!/bin/env bash
#
# push_to_gitea.sh - Push script to Gitea instance
#
# Setup once: export GITEA_USER="your-username" and GITEA_TOKEN="your-git-token"
#

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_DIR="${SCRIPT_DIR}"

# Default Gitea URL
# Get it from your IBM Gitea instance
GITEA_URL="${GITEA_URL:-https://gitea.corp-softy.ibm.com}"

GITEA_USER="${GITEA_USER:-michael}"
GITEA_TOKEN="${GITEA_TOKEN:-}"

# Create .gitconfig for this repo
create_config() {
    cat > "${REPO_DIR}/.gitconfig" << 'EOF'
[remote "gitea"]
	url = https://${GITEA_TOKEN}@${GITEA_URL}/corporate-softy/cpd-cli-update-script.git
	fetch = +refs/heads/*:refs/remotes/origin/*

# If you want to push to personal fork:
# url = https://${GITEA_TOKEN}@${GITEA_URL}/${GITEA_USER}/cpd-cli-update-script.git
EOF
}

# Setup
setup() {
    if [[ ${GITEA_TOKEN} == "" ]]; then
        echo "No GITEA_TOKEN set" | tee -a /tmp/cpd-cli-push-$(date +"%Y-%m-%d-%H-%M-%S").log 1
        read -p "Press enter to cancel, or paste GITEA_TOKEN:" token
        export GITEA_TOKEN="${token:-}"
    fi

    if [[ ${GITEA_TOKEN} == "" ]]; then
        echo "Exiting without GITEA_TOKEN. Please set export GITEA_TOKEN='your-token'"
        exit 1
    fi

    config_exists="${REPO_DIR}/.gitconfig"
    if [[ ! -f "${config_exists}" ]] || [[ ! $(grep -i ${GITEA_URL} "${config_exists}" 2>/dev/null || echo "") ]]; then
        echo "Creating .gitconfig" | tee -a /tmp/cpd-cli-push-$(date +"%Y-%m-%d-%H-%M-%S").log 1
        create_config
    fi
}

# Fetch first
fetch() {
    git fetch gitea
    echo "Fetched from ${GITEA_URL}" | tee -a /tmp/cpd-cli-push-$(date +"%Y-%m-%d-%H-%M-%S").log 1
}

# Add and push
add_push() {
    git add -A
    local changes
    changes=$(git diff-index --quiet HEAD -- || git status -s 2>/dev/null || echo '')

    if [[ -z "$changes" ]]; then
        echo "No changes to commit" | tee -a /tmp/cpd-cli-push-$(date +"%Y-%m-%d-%H-%M-%S").log 1
        exit 0
    fi

    git commit -m "Automated update from script"
    git push gitea master
    echo "Pushed to gitea!" | tee -a /tmp/cpd-cli-push-$(date +"%Y-%m-%d-%H-%M-%S").log 1
}

# Main
main() {
    echo "Pushing to GitHub: ${GITEA_URL}/${GITEA_USER}/cpd-cli-update-script"
    echo ""
    setup
    fetch
    add_push
    echo ""
    echo "Done!" | tee -a /tmp/cpd-cli-push-$(date +"%Y-%m-%d-%H-%M-%S").log 1
}

main "$@"