#!/bin/bash

# NOTE:
#
# This file is *sourced* not run by the entrypoint runner
# so any environment values set here will be accessible to all sub-processes
# and future entrypoint.d scripts
#
# We also don't need to source `helpers.sh` since it's already available

entrypoint-set-script-name "${BASH_SOURCE[0]}"

load-config-files

: "${MAX_PHOTO_SIZE:=15000}"
: "${MAX_ALBUM_LENGTH:=4}"

# We assign a 1MB buffer to the just-in-time calculated max post size to allow for fields and overhead
: "${POST_MAX_SIZE_BUFFER:=1M}"
log-info "POST_MAX_SIZE_BUFFER is set to [${POST_MAX_SIZE_BUFFER}]"
buffer=$(numfmt --invalid=fail --from=auto --to=none --to-unit=K "${POST_MAX_SIZE_BUFFER}")
log-info "POST_MAX_SIZE_BUFFER converted to KB is [${buffer}]"

# Automatically calculate the [post_max_size] value for [php.ini] and [nginx]
log-info "POST_MAX_SIZE will be calculated by [({MAX_PHOTO_SIZE} * {MAX_ALBUM_LENGTH}) + {POST_MAX_SIZE_BUFFER}]"
log-info "  MAX_PHOTO_SIZE=${MAX_PHOTO_SIZE}"
log-info "  MAX_ALBUM_LENGTH=${MAX_ALBUM_LENGTH}"
log-info "  POST_MAX_SIZE_BUFFER=${buffer}"
: "${POST_MAX_SIZE:=$(numfmt --invalid=fail --from=auto --from-unit=K --to=si $(((MAX_PHOTO_SIZE * MAX_ALBUM_LENGTH) + buffer)))}"
log-info "POST_MAX_SIZE was calculated to [${POST_MAX_SIZE}]"

# NOTE: must export the value so it's available in other scripts!
export POST_MAX_SIZE