# Build a container which hosts Android apps through an F-Droid repository.

# Base Image #

FROM debian:trixie-slim

# variables #

ENV WEBROOT="/var/www/html"
ENV FDROID="/root/fdroid"
ENV REPO="$FDROID/repo"

# Install Packages#
# https://f-droid.org/en/docs/Installing_the_Server_and_Repo_Tools/#debianubuntumintetc

RUN apt-get update && apt-get install -y sudo bash curl git vim nginx
COPY files/debian-backports.sources /etc/apt/sources.list.d/
RUN apt-get update && apt-get install -y -t trixie-backports fdroidserver

# Generate F-Droid Repo #

USER root
RUN mkdir -pv "$FDROID"
WORKDIR "$FDROID"
RUN fdroid init

# Start Command #

CMD nginx -g "daemon off;"

# This is where the image would get published. #

# Configure F-Droid Repo #

ARG REPO_DOMAIN
ENV REPO_DOMAIN="$REPO_DOMAIN"
ARG REPO_NAME
ENV REPO_NAME="$REPO_NAME"
ARG REPO_ICON
ENV REPO_ICON="$REPO_ICON"

# TBD/TODO: Add commands to remove repo_url and repo_name if they already exist.

RUN sed -i "$ a repo_url: $REPO_DOMAIN/fdroid/repo" "$FDROID/config.yml"
RUN sed -i "$ a repo_name: $REPO_NAME" "$FDROID/config.yml"

RUN fdroid update

# Advanced Variables #

ARG FILE00
ENV FILE00="$FILE00"
ARG FILE01
ENV FILE01="$FILE01"
ARG FILE02
ENV FILE02="$FILE02"
ARG FILE03
ENV FILE03="$FILE03"
ARG FILE04
ENV FILE04="$FILE04"
ARG FILE05
ENV FILE05="$FILE05"
ARG FILE06
ENV FILE06="$FILE06"
ARG FILE07
ENV FILE07="$FILE07"
ARG FILE08
ENV FILE08="$FILE08"
ARG FILE09
ENV FILE09="$FILE09"
ARG FILE10
ENV FILE10="$FILE10"
ARG FILE11
ENV FILE11="$FILE11"
ARG FILE12
ENV FILE12="$FILE12"
ARG FILE13
ENV FILE13="$FILE13"
ARG FILE14
ENV FILE14="$FILE14"
ARG FILE15
ENV FILE15="$FILE15"
ARG FILE16
ENV FILE16="$FILE16"
ARG FILE17
ENV FILE17="$FILE17"
ARG FILE18
ENV FILE18="$FILE18"
ARG FILE19
ENV FILE19="$FILE19"

# Download Remote Files #

RUN mkdir -pv /root/fdroid/repo
RUN bash -c 'if [[ -n "$FILE00" ]]; then wget -P "$REPO" "$FILE00"; fi'
RUN bash -c 'if [[ -n "$FILE01" ]]; then wget -P "$REPO" "$FILE01"; fi'
RUN bash -c 'if [[ -n "$FILE02" ]]; then wget -P "$REPO" "$FILE02"; fi'
RUN bash -c 'if [[ -n "$FILE03" ]]; then wget -P "$REPO" "$FILE03"; fi'
RUN bash -c 'if [[ -n "$FILE04" ]]; then wget -P "$REPO" "$FILE04"; fi'
RUN bash -c 'if [[ -n "$FILE05" ]]; then wget -P "$REPO" "$FILE05"; fi'
RUN bash -c 'if [[ -n "$FILE06" ]]; then wget -P "$REPO" "$FILE06"; fi'
RUN bash -c 'if [[ -n "$FILE07" ]]; then wget -P "$REPO" "$FILE07"; fi'
RUN bash -c 'if [[ -n "$FILE08" ]]; then wget -P "$REPO" "$FILE08"; fi'
RUN bash -c 'if [[ -n "$FILE09" ]]; then wget -P "$REPO" "$FILE09"; fi'
RUN bash -c 'if [[ -n "$FILE10" ]]; then wget -P "$REPO" "$FILE10"; fi'
RUN bash -c 'if [[ -n "$FILE11" ]]; then wget -P "$REPO" "$FILE11"; fi'
RUN bash -c 'if [[ -n "$FILE12" ]]; then wget -P "$REPO" "$FILE12"; fi'
RUN bash -c 'if [[ -n "$FILE13" ]]; then wget -P "$REPO" "$FILE13"; fi'
RUN bash -c 'if [[ -n "$FILE14" ]]; then wget -P "$REPO" "$FILE14"; fi'
RUN bash -c 'if [[ -n "$FILE15" ]]; then wget -P "$REPO" "$FILE15"; fi'
RUN bash -c 'if [[ -n "$FILE16" ]]; then wget -P "$REPO" "$FILE16"; fi'
RUN bash -c 'if [[ -n "$FILE17" ]]; then wget -P "$REPO" "$FILE17"; fi'
RUN bash -c 'if [[ -n "$FILE18" ]]; then wget -P "$REPO" "$FILE18"; fi'
RUN bash -c 'if [[ -n "$FILE19" ]]; then wget -P "$REPO" "$FILE19"; fi'

RUN sync

# Move any downloaded metadata files to the correct folder.
RUN cp -v "$REPO"/*.yml "$REPO"/../metadata || \
      echo "WARNING! No YML file(s) to copy." && sleep 10

# Move any downloaded icons to the proper folder.
RUN mv -v "$REPO"/*.png "$FDROID"/ || \
      echo "WARNING! No PNG file(s) to copy." && sleep 10

# If the icon variable is set, add it to the config file before updating.
RUN [ ! -z "$REPO_ICON" ] && \
      sed -i "$ a repo_icon: $REPO_ICON" "$FDROID/config.yml"

RUN fdroid update -c

# Publish Repo Contents to Web Root #

RUN cp -rv "$FDROID" "$WEBROOT/"

# The index files are in repo.
# TODO: Can NGINX be configured to serve this as root while still
#       having the URL be fdroid/repo/? How do others handle this?
RUN cp -rv "$REPO"/* "$WEBROOT/"

CMD service nginx start && \
      echo "\n*** F-Droid Repository has been started successfully! ***\n" && \
      tail -F /var/log/nginx/access.log & \
      tail -F /var/log/nginx/error.log