Major refactoring and removal of junk

This commit includes significant refactoring, cleanup, and updates across various components of the Django project. The following changes were made:

- **Database Migration Updates:**
  - Removed unnecessary migrations in the `alphabetlearning.contrib.sites` and `alphabetlearning.payments` apps, consolidating them into cleaner initial migration files.
  - Altered the `Site` model in `alphabetlearning.contrib.sites` to streamline its fields and default settings.
  - Introduced new models in `alphabetlearning.payments` related to email signups and verification, reflecting a shift in focus and better alignment with current business logic.

- **Django Settings Changes:**
  - Updated the database settings to use SQLite for local development, while commenting out production-specific configurations.
  - Managed third-party dependencies within `requirements.txt` and `pyproject.toml`, ensuring alignment with the latest Django version (5.1.4) and removing obsolete dependencies (e.g., `celery`, `django-celery-beat`, `flower`, etc.).

- **Docker and Compose Clean-up:**
  - Removed old Dockerfiles and unnecessary services from the `docker-compose` configuration, streamlining the local and production setups.
  - Updated the Dockerfile configuration for local development, focusing on essential services only.

- **General Code Clean-up:**
  - Removed unused tasks, views, tests, and files related to the Celery and Redis frameworks.
  - Cleaned up various model definitions and their related migrations for consistency and clarity.

- **Documentation and Comments:**
  - Updated comments and code documentation where necessary to reflect the changes made during this cleanup process.

This major refactor aims to enhance project maintainability and streamline the development experience while preparing for future feature expansions and improvements.

9 files changed, 0 insertions, 231 deletions

diff --git a/compose/production/postgres/Dockerfile b/compose/production/postgres/Dockerfile
deleted file mode 100644
index 176a5f1..0000000
--- a/compose/production/postgres/Dockerfile
+++ /dev/null
@@ -1,6 +0,0 @@
-FROM docker.io/postgres:16
-
-COPY ./compose/production/postgres/maintenance /usr/local/bin/maintenance
-RUN chmod +x /usr/local/bin/maintenance/*
-RUN mv /usr/local/bin/maintenance/* /usr/local/bin \
-    && rmdir /usr/local/bin/maintenance
diff --git a/compose/production/postgres/maintenance/_sourced/constants.sh b/compose/production/postgres/maintenance/_sourced/constants.sh
deleted file mode 100644
index 6ca4f0c..0000000
--- a/compose/production/postgres/maintenance/_sourced/constants.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env bash
-
-
-BACKUP_DIR_PATH='/backups'
-BACKUP_FILE_PREFIX='backup'
diff --git a/compose/production/postgres/maintenance/_sourced/countdown.sh b/compose/production/postgres/maintenance/_sourced/countdown.sh
deleted file mode 100644
index e6cbfb6..0000000
--- a/compose/production/postgres/maintenance/_sourced/countdown.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/usr/bin/env bash
-
-
-countdown() {
-    declare desc="A simple countdown. Source: https://superuser.com/a/611582"
-    local seconds="${1}"
-    local d=$(($(date +%s) + "${seconds}"))
-    while [ "$d" -ge `date +%s` ]; do
-        echo -ne "$(date -u --date @$(($d - `date +%s`)) +%H:%M:%S)\r";
-        sleep 0.1
-    done
-}
diff --git a/compose/production/postgres/maintenance/_sourced/messages.sh b/compose/production/postgres/maintenance/_sourced/messages.sh
deleted file mode 100644
index f6be756..0000000
--- a/compose/production/postgres/maintenance/_sourced/messages.sh
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/usr/bin/env bash
-
-
-message_newline() {
-    echo
-}
-
-message_debug()
-{
-    echo -e "DEBUG: ${@}"
-}
-
-message_welcome()
-{
-    echo -e "\e[1m${@}\e[0m"
-}
-
-message_warning()
-{
-    echo -e "\e[33mWARNING\e[0m: ${@}"
-}
-
-message_error()
-{
-    echo -e "\e[31mERROR\e[0m: ${@}"
-}
-
-message_info()
-{
-    echo -e "\e[37mINFO\e[0m: ${@}"
-}
-
-message_suggestion()
-{
-    echo -e "\e[33mSUGGESTION\e[0m: ${@}"
-}
-
-message_success()
-{
-    echo -e "\e[32mSUCCESS\e[0m: ${@}"
-}
diff --git a/compose/production/postgres/maintenance/_sourced/yes_no.sh b/compose/production/postgres/maintenance/_sourced/yes_no.sh
deleted file mode 100644
index fd9cae1..0000000
--- a/compose/production/postgres/maintenance/_sourced/yes_no.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/usr/bin/env bash
-
-
-yes_no() {
-    declare desc="Prompt for confirmation. \$\"\{1\}\": confirmation message."
-    local arg1="${1}"
-
-    local response=
-    read -r -p "${arg1} (y/[n])? " response
-    if [[ "${response}" =~ ^[Yy]$ ]]
-    then
-        exit 0
-    else
-        exit 1
-    fi
-}
diff --git a/compose/production/postgres/maintenance/backup b/compose/production/postgres/maintenance/backup
deleted file mode 100644
index f72304c..0000000
--- a/compose/production/postgres/maintenance/backup
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/usr/bin/env bash
-
-
-### Create a database backup.
-###
-### Usage:
-###     $ docker compose -f <environment>.yml (exec |run --rm) postgres backup
-
-
-set -o errexit
-set -o pipefail
-set -o nounset
-
-
-working_dir="$(dirname ${0})"
-source "${working_dir}/_sourced/constants.sh"
-source "${working_dir}/_sourced/messages.sh"
-
-
-message_welcome "Backing up the '${POSTGRES_DB}' database..."
-
-
-if [[ "${POSTGRES_USER}" == "postgres" ]]; then
-    message_error "Backing up as 'postgres' user is not supported. Assign 'POSTGRES_USER' env with another one and try again."
-    exit 1
-fi
-
-export PGHOST="${POSTGRES_HOST}"
-export PGPORT="${POSTGRES_PORT}"
-export PGUSER="${POSTGRES_USER}"
-export PGPASSWORD="${POSTGRES_PASSWORD}"
-export PGDATABASE="${POSTGRES_DB}"
-
-backup_filename="${BACKUP_FILE_PREFIX}_$(date +'%Y_%m_%dT%H_%M_%S').sql.gz"
-pg_dump | gzip > "${BACKUP_DIR_PATH}/${backup_filename}"
-
-
-message_success "'${POSTGRES_DB}' database backup '${backup_filename}' has been created and placed in '${BACKUP_DIR_PATH}'."
diff --git a/compose/production/postgres/maintenance/backups b/compose/production/postgres/maintenance/backups
deleted file mode 100644
index a18937d..0000000
--- a/compose/production/postgres/maintenance/backups
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env bash
-
-
-### View backups.
-###
-### Usage:
-###     $ docker compose -f <environment>.yml (exec |run --rm) postgres backups
-
-
-set -o errexit
-set -o pipefail
-set -o nounset
-
-
-working_dir="$(dirname ${0})"
-source "${working_dir}/_sourced/constants.sh"
-source "${working_dir}/_sourced/messages.sh"
-
-
-message_welcome "These are the backups you have got:"
-
-ls -lht "${BACKUP_DIR_PATH}"
diff --git a/compose/production/postgres/maintenance/restore b/compose/production/postgres/maintenance/restore
deleted file mode 100644
index c68f17d..0000000
--- a/compose/production/postgres/maintenance/restore
+++ /dev/null
@@ -1,55 +0,0 @@
-#!/usr/bin/env bash
-
-
-### Restore database from a backup.
-###
-### Parameters:
-###     <1> filename of an existing backup.
-###
-### Usage:
-###     $ docker compose -f <environment>.yml (exec |run --rm) postgres restore <1>
-
-
-set -o errexit
-set -o pipefail
-set -o nounset
-
-
-working_dir="$(dirname ${0})"
-source "${working_dir}/_sourced/constants.sh"
-source "${working_dir}/_sourced/messages.sh"
-
-
-if [[ -z ${1+x} ]]; then
-    message_error "Backup filename is not specified yet it is a required parameter. Make sure you provide one and try again."
-    exit 1
-fi
-backup_filename="${BACKUP_DIR_PATH}/${1}"
-if [[ ! -f "${backup_filename}" ]]; then
-    message_error "No backup with the specified filename found. Check out the 'backups' maintenance script output to see if there is one and try again."
-    exit 1
-fi
-
-message_welcome "Restoring the '${POSTGRES_DB}' database from the '${backup_filename}' backup..."
-
-if [[ "${POSTGRES_USER}" == "postgres" ]]; then
-    message_error "Restoring as 'postgres' user is not supported. Assign 'POSTGRES_USER' env with another one and try again."
-    exit 1
-fi
-
-export PGHOST="${POSTGRES_HOST}"
-export PGPORT="${POSTGRES_PORT}"
-export PGUSER="${POSTGRES_USER}"
-export PGPASSWORD="${POSTGRES_PASSWORD}"
-export PGDATABASE="${POSTGRES_DB}"
-
-message_info "Dropping the database..."
-dropdb "${PGDATABASE}"
-
-message_info "Creating a new database..."
-createdb --owner="${POSTGRES_USER}"
-
-message_info "Applying the backup to the new database..."
-gunzip -c "${backup_filename}" | psql "${POSTGRES_DB}"
-
-message_success "The '${POSTGRES_DB}' database has been restored from the '${backup_filename}' backup."
diff --git a/compose/production/postgres/maintenance/rmbackup b/compose/production/postgres/maintenance/rmbackup
deleted file mode 100644
index fdfd20e..0000000
--- a/compose/production/postgres/maintenance/rmbackup
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env bash
-
-### Remove a database backup.
-###
-### Parameters:
-###     <1> filename of a backup to remove.
-###
-### Usage:
-###     $ docker-compose -f <environment>.yml (exec |run --rm) postgres rmbackup <1>
-
-
-set -o errexit
-set -o pipefail
-set -o nounset
-
-
-working_dir="$(dirname ${0})"
-source "${working_dir}/_sourced/constants.sh"
-source "${working_dir}/_sourced/messages.sh"
-
-
-if [[ -z ${1+x} ]]; then
-    message_error "Backup filename is not specified yet it is a required parameter. Make sure you provide one and try again."
-    exit 1
-fi
-backup_filename="${BACKUP_DIR_PATH}/${1}"
-if [[ ! -f "${backup_filename}" ]]; then
-    message_error "No backup with the specified filename found. Check out the 'backups' maintenance script output to see if there is one and try again."
-    exit 1
-fi
-
-message_welcome "Removing the '${backup_filename}' backup file..."
-
-rm -r "${backup_filename}"
-
-message_success "The '${backup_filename}' database backup has been removed."