#!/bin/bash

source /opt/environment/.env
## This script triggers a CI/CD pipeline.
# It then restores a backup using `restore-backup.service` systemd service

## This script requires `restore-backup.service` in `/etc/systemd/system`

## Dependencies (in service.yaml `packages` section)
# - jq
# - curl

## Environment variables
# GITEA_SERVICE_APPLICATION_TOKEN: Gitea API token.
# GITEA_SERVICE_REPOSITORY: repository where the project resides.
# GITEA_INSTANCE_URL: Gitea url.
# SERVICE_DATABASE_CONTAINER_NAME: Container name for database.
# GITEA_WORKFLOW_NAME: deploy.yaml

curl -X POST -H "Authorization: token $GITEA_SERVICE_APPLICATION_TOKEN" \
    -H "Content-Type: application/json" \
    $GITEA_INSTANCE_URL/api/v1/repos/$GITEA_SERVICE_REPOSITORY/actions/workflows/$GITEA_WORKFLOW_NAME/dispatches \
    -d '{"ref": "main", "inputs": {"ref": "main"}}'

RUN_ID=$(curl -s -H "Authorization: token $GITEA_SERVICE_APPLICATION_TOKEN" \
    $GITEA_INSTANCE_URL/api/v1/repos/$GITEA_SERVICE_REPOSITORY/actions/runs \
    | jq -r '.workflow_runs | sort_by(.created_at) | .[0].id')

while true; do
    STATUS=$(curl -s -H "Authorization: token $GITEA_SERVICE_APPLICATION_TOKEN" \
        $GITEA_INSTANCE_URL/api/v1/repos/$GITEA_SERVICE_REPOSITORY/actions/runs/$RUN_ID \
        | jq -r '.status')
        
    if [ "$STATUS" = "completed" ]; then
        CONCLUSION=$(curl -s -H "Authorization: token $GITEA_SERVICE_APPLICATION_TOKEN" \
        $GITEA_INSTANCE_URL/api/v1/repos/$GITEA_SERVICE_REPOSITORY/actions/runs/$RUN_ID \
        | jq -r '.conclusion')
        echo "Workflow finished with status: $CONCLUSION"
        break
    fi

    echo "Waiting 10 seconds..."
    sleep 10
done

if [ "$CONCLUSION" = "success" ]; then
    echo "Launching command..."

    while [ "$(docker inspect -f '{{.State.Running}}' $SERVICE_DATABASE_CONTAINER_NAME-1 2>/dev/null)" != "true" ]; do
        echo "Waiting database container status"
        sleep 5
    done
    
    systemctl start restore-backup.service
else
    echo "Workflow failed or was cancelled, aborting."
    exit 1
fi