#!/bin/bash

set -Eeuo pipefail

SECONDS=0

########################################
# Error Handling
########################################

trap 'echo "ERROR: Script failed at line ${LINENO}. Command: ${BASH_COMMAND}" >&2' ERR

########################################
# Project Identity
# NOTE: Fill these in per-project. Do not
# hardcode values here that other projects
# also use, to avoid collisions.
########################################

PRJ_NAME="17sep01-frontend-f"

IMAGE_PROJECT_NAME="${PRJ_NAME}"

########################################
# Gitea Source Repository
########################################

GITEA_USER="risadmin_prod"
GITEA_PASS="adminprod1234"
GITEA_URL="http://157.66.191.31:3000"
GITEA_URL="${GITEA_URL#http://}"
GITEA_ORG="risadmin_prod"
GITEA_EMAIL="ganeshk@dekatc.com"

REPO_NAME="17sep01"
GIT_BRANCH=main

########################################
# Module Paths (per project, inside -b / -f dirs)
########################################

JAR_NAME=app-1.0.0.jar
BACKEND_SUBPATH="<BACKEND_SUBPATH>"     # e.g. authsec_springboot/backend
FRONTEND_SUBPATH="<FRONTEND_SUBPATH>"   # e.g. authsec_flutter_new/frontend/flutter_new
APK_NAME=app-release.apk

########################################
# Docker Registry
########################################

DOCKER_USER=risadmin_prod
DOCKER_PASS=adminprod1234
DOCKER_URL=157.66.191.31:3000

DOCKER_TAG=1.0

########################################
# Build Path
########################################

PATH_DIR="/data/66158_1789629213511/sureops"

########################################
# Image Names
########################################

IMAGE_NAME="${DOCKER_URL}/${DOCKER_USER}/${IMAGE_PROJECT_NAME}:${DOCKER_TAG}"
LATEST_IMAGE="${DOCKER_URL}/${DOCKER_USER}/${IMAGE_PROJECT_NAME}:latest"

########################################
# Display Configuration
########################################

echo "=========================================="
echo " SINGLE CONTAINER BUILD (Flutter + SpringBoot + MySQL)"
echo "=========================================="

echo "Project Name : ${PRJ_NAME}"
echo "Container Name : ${IMAGE_PROJECT_NAME}"
echo "Repository : ${GITEA_ORG}/${REPO_NAME}"
echo "Branch : ${GIT_BRANCH}"
echo "Docker Image : ${IMAGE_NAME}"
echo "Latest Image : ${LATEST_IMAGE}"
echo "Build Path : ${PATH_DIR}"

echo "=========================================="

########################################
# Validate Configuration
########################################

echo "Validating configuration..."

REQUIRED_VARIABLES=(
    "PRJ_NAME"
    "GITEA_USER"
    "GITEA_PASS"
    "GITEA_URL"
    "GITEA_ORG"
    "REPO_NAME"
    "GIT_BRANCH"
    "JAR_NAME"
    "BACKEND_SUBPATH"
    "FRONTEND_SUBPATH"
    "DOCKER_USER"
    "DOCKER_PASS"
    "DOCKER_URL"
    "DOCKER_TAG"
    "PATH_DIR"
)

for VARIABLE in "${REQUIRED_VARIABLES[@]}"; do
    VALUE="${!VARIABLE:-}"

    if [[ -z "${VALUE}" ]]; then
        echo "ERROR: Required variable '${VARIABLE}' is empty."
        exit 1
    fi

    if [[ "${VALUE}" == "<"*">" ]]; then
        echo "ERROR: Variable '${VARIABLE}' still contains placeholder value: ${VALUE}"
        exit 1
    fi
done

echo "Configuration validation successful."

########################################
# Check Docker
########################################

if ! command -v docker >/dev/null 2>&1; then
    echo "ERROR: Docker is not installed or not available in PATH."
    exit 1
fi

if ! docker info >/dev/null 2>&1; then
    echo "ERROR: Docker daemon is not running or current user has no permission."
    exit 1
fi

########################################
# Change Directory
########################################

if [[ ! -d "${PATH_DIR}" ]]; then
    echo "ERROR: Directory not found: ${PATH_DIR}"
    exit 1
fi

cd "${PATH_DIR}"

########################################
# Build Docker Image
########################################

echo "=========================================="
echo " BUILDING DOCKER IMAGE"
echo "=========================================="

docker build \
    --no-cache \
    --build-arg "GITEA_USER=${GITEA_USER}" \
    --build-arg "GITEA_PASS=${GITEA_PASS}" \
    --build-arg "GITEA_URL=${GITEA_URL}" \
    --build-arg "GITEA_ORG=${GITEA_ORG}" \
    --build-arg "REPO_NAME=${REPO_NAME}" \
    --build-arg "GIT_BRANCH=${GIT_BRANCH}" \
    --build-arg "JAR_NAME=${JAR_NAME}" \
    --build-arg "BACKEND_SUBPATH=${BACKEND_SUBPATH}" \
    --build-arg "FRONTEND_SUBPATH=${FRONTEND_SUBPATH}" \
    --build-arg "APK_NAME=${APK_NAME}" \
    -t "${IMAGE_NAME}" \
    .

echo "Docker build successful."

########################################
# Verify Image
########################################

if ! docker image inspect "${IMAGE_NAME}" >/dev/null 2>&1; then
    echo "ERROR: Docker image was not created: ${IMAGE_NAME}"
    exit 1
fi

docker images "${IMAGE_NAME}"

########################################
# Docker Registry Login + Push
########################################

if ! echo "${DOCKER_PASS}" | docker login \
    --username "${DOCKER_USER}" \
    --password-stdin \
    "${DOCKER_URL}"; then

    echo "ERROR: Docker registry login failed."
    exit 1
fi

docker tag "${IMAGE_NAME}" "${LATEST_IMAGE}"

docker push "${IMAGE_NAME}"
docker push "${LATEST_IMAGE}"

docker logout "${DOCKER_URL}" || true

########################################
# Deployment Note
#
# DO NOT RUN CONTAINER HERE.
# Deployment service will perform:
# docker pull / docker stop / docker rm / docker run
########################################

echo "=========================================="
echo " BUILD AND PUSH COMPLETED"
echo "=========================================="
echo "Project Name : ${PRJ_NAME}"
echo "Image : ${IMAGE_NAME}"
echo "Latest Image : ${LATEST_IMAGE}"

DURATION="${SECONDS}"
echo "Total time taken: $((DURATION / 60)) min $((DURATION % 60)) sec"

exit 0