#!/bin/bash
set -euo pipefail
IFS=$'\n\t'

# Fetch the JSON data from the specified URL
JSON_DATA=$(curl -s https://api.wordpress.org/core/stable-check/1.0/)

# Use jq to parse the JSON data and extract the version marked as "latest"
TESTED_UP_TO=$(echo "$JSON_DATA" | jq -r 'to_entries[] | select(.value == "latest") | .key')

# Read the TESTED_UP_TO value from config.json
CONFIG_TESTED_UP_TO=$(jq -r '.TESTED_UP_TO' ./config.json)

# Compare the two values and exit if they are the same
if [[ "$TESTED_UP_TO" == "$CONFIG_TESTED_UP_TO" ]]; then
    echo "### :no_good_woman: Didn't update versions :no_good:" >> $GITHUB_STEP_SUMMARY
    echo "" >> $GITHUB_STEP_SUMMARY
    echo "Stopped because WordPress version ($TESTED_UP_TO) has not changed." >> $GITHUB_STEP_SUMMARY
    echo "TESTED_UP_TO has not changed. Exiting..."
    exit 0
fi

# Fetch the current STABLE_TAG value from config.json
PREVIOUS_STABLE_TAG=$(jq -r '.STABLE_TAG' config.json)

# Increment the STABLE_TAG value
STABLE_TAG=$(echo "$PREVIOUS_STABLE_TAG" | awk -F. '{$NF+=1} 1' OFS=.)

echo "### :rocket: Updated versions :rocket:" >> $GITHUB_STEP_SUMMARY
echo "" >> $GITHUB_STEP_SUMMARY # this is a blank line
echo "- New stable tag: $STABLE_TAG (was $PREVIOUS_STABLE_TAG)" >> $GITHUB_STEP_SUMMARY
echo "- New WordPress version: $TESTED_UP_TO (was $CONFIG_TESTED_UP_TO)" >> $GITHUB_STEP_SUMMARY

# Use sed to replace the version lines in some files
sed -i -e "s/Tested up to: [0-9.]*$/Tested up to: $TESTED_UP_TO/" \
       -e "s/Stable tag: [0-9.]*$/Stable tag: $STABLE_TAG/" ./readme.txt

sed -i -e "s/Tested up to: [0-9.]*$/Tested up to: $TESTED_UP_TO/" \
       -e "s/Version: [0-9.]*$/Version: $STABLE_TAG/" ./simple-analytics.php

# Get the current date in the specified format
DATE=$(date +"%Y-%m-%d")

# Generate the new changelog item
NEW_ENTRY=$(cat <<EOL
= $STABLE_TAG =
* $DATE
* Upgraded to WordPress $TESTED_UP_TO
EOL
)

# Use sed to insert the new changelog item below the line "== Changelog =="
sed -i -e "/== Changelog ==/a\\
\\
= $STABLE_TAG =\\
* $DATE\\
* Upgraded to WordPress $TESTED_UP_TO" ./readme.txt

# Update the config.json file
echo "{
  \"TESTED_UP_TO\": \"$TESTED_UP_TO\",
  \"STABLE_TAG\": \"$STABLE_TAG\"
}" > config.json

# Output the new version information for use in subsequent GitHub Actions steps
echo "tested-up-to=$TESTED_UP_TO" >> $GITHUB_OUTPUT
echo "stable-tag=$STABLE_TAG" >> $GITHUB_OUTPUT
echo "has-changed=true" >> $GITHUB_OUTPUT