#!/bin/bash
#
# <xbar.title>Coin Alert</xbar.title>
# <xbar.version>v1.0</xbar.version>
# <xbar.author>Carlson Orozco</xbar.author>
# <xbar.author.github>carlsonorozco</xbar.author.github>
# <xbar.desc>Coin Alert is a plugin for BitBar that notifies and make a sound when less than or greater than cryptocurrency price from CoinMarketCap.</xbar.desc>
# <xbar.image>https://raw.githubusercontent.com/carlsonorozco/coin-alert/master/image.png</xbar.image>
# <xbar.abouturl>https://github.com/carlsonorozco/coin-alert</xbar.abouturl>

bitcoin_icon='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'
timestamp=$(date +%s)

get_cointmarketcap_cache() {
    curl -s "https://api.coinmarketcap.com/v1/ticker/?limit=10" -o '/tmp/coinmarketcap-ticker.json'
}

# Check cache
if [ ! -f '/tmp/coinmarketcap-ticker.json' ]; then
    get_cointmarketcap_cache
else
    file_created=$(date -r /tmp/coinmarketcap-ticker.json +%s)
    if [[ $((timestamp - file_created)) -gt 300 ]]; then
        get_cointmarketcap_cache
    fi
fi

# Set Alert
if [ "$1" = 'set' ]; then
    crpto="$(osascript -l JavaScript -e '
        const app = Application.currentApplication()
        app.includeStandardAdditions = true
        const data = JSON.parse(app.read(Path("/tmp/coinmarketcap-ticker.json")))
        const ids = data.map(crypto => crypto.id)
        const selectedId = app.chooseFromList(ids, {
            withPrompt: "Select CryptoCurrency:"
        })
        selectedId
    ')"
    if [ "$crpto" = 'false' ]; then exit; fi

    operation="$(osascript -l JavaScript -e '
        const app = Application.currentApplication()
        app.includeStandardAdditions = true
        const operation = app.chooseFromList(["↑", "↓"], {
            withPrompt: "When to alert:"
        })
        operation
    ')"
    if [ "$operation" = 'false' ]; then exit; fi

    amount="$(osascript -l JavaScript -e '
        const app = Application.currentApplication()
        app.includeStandardAdditions = true
        const response = app.displayDialog("At what $ amount?", {
            defaultAnswer: "",
            withIcon: "note",
            buttons: ["Cancel", "Set"],
            defaultButton: "Set"
        })
        response.textReturned
    ')"

    re='^[0-9]+([.][0-9]+)?$'
    if ! [[ $amount =~ $re ]] ; then exit; fi

    echo "$crpto $operation $amount" >> /tmp/coin-alert.data
    exit
fi

# Remove Alert
if [ "$1" = 'remove' ]; then
    touch /tmp/coin-alert-tmp.data
    while IFS= read -r line; do
        if [ "$2" != "$line" ]; then
            echo "$line" >> /tmp/coin-alert-tmp.data
        fi
    done </tmp/coin-alert.data
    mv /tmp/coin-alert-tmp.data /tmp/coin-alert.data
    exit
fi

# Refresh Alert
if [ "$1" = 'refresh' ]; then
    rm /tmp/coinmarketcap-ticker.json
    exit
fi

# Create coin-alert.data if not exist
if [ ! -f '/tmp/coin-alert.data' ]; then
    touch '/tmp/coin-alert.data'
fi

# Count all alerts
total_alerts=$(grep -c ' ↓ \| ↑ ' /tmp/coin-alert.data)

# Header Display
if [ $((total_alerts)) -gt 0 ]; then
    if [ ! -f '/tmp/coin-alert-trigger.data' ] ; then
        echo "$total_alerts | templateImage=$bitcoin_icon"
    else
        echo "$total_alerts | color=red templateImage=$bitcoin_icon"
    fi
    echo '---'
else
    echo "| templateImage=$bitcoin_icon"
fi

# Parse alerts
while IFS= read -r line; do
    echo "$line | color=red bash='$0' param1=remove param2=\"$line\" terminal=false"
done </tmp/coin-alert.data

# Remove existing trigger data
if [ -f '/tmp/coin-alert-trigger.data' ]; then
    rm /tmp/coin-alert-trigger.data
fi

# Process alerts
osascript -l JavaScript -e "
    var app = Application.currentApplication()
    app.includeStandardAdditions = true

    function writeTextToFile(text, file, overwriteExistingContent) {
        try {
            // Convert the file to a string
            const fileString = file.toString()

            // Open the file for writing
            const openedFile = app.openForAccess(Path(fileString), { writePermission: true })

            // Clear the file if content should be overwritten
            if (overwriteExistingContent) {
                app.setEof(openedFile, { to: 0 })
            }

            // Write the new content to the file
            app.write(text, { to: openedFile, startingAt: app.getEof(openedFile) })

            // Close the file
            app.closeAccess(openedFile)

            // Return a boolean indicating that writing was successful
            return true
        } catch(error) {
            try {
                // Close the file
                app.closeAccess(file)
            } catch(error) {
                // Report the error is closing failed
                console.log('Could not close file: ' + error)
            }

            // Return a boolean indicating that writing was successful
            return false
        }
    }
    try {
        const alerts = (app.read(Path('/tmp/coin-alert.data'), { usingDelimiter: \"\\n\" })).map(value => value.split(' '))
        const data = (alerts.length > 0) ? JSON.parse(app.read(Path('/tmp/coinmarketcap-ticker.json'))) : []
        for (let value of alerts) {
            let operator = (value[1] === '‚Üë') ? '>' : '<'
            let operators = {
                '>': (a, b) => a > b,
                '<': (a, b) => a < b,
            }
            let isMatch = data.some(crypto => {
                if (value[0] === crypto.id) {
                    return operators[operator](parseFloat(crypto.price_usd), parseFloat(value[2]))
                }
            })
            if (isMatch) {
                writeTextToFile(value[0] + ' ' + value[1] + ' ' + value[2].toString() + \"\\n\\n\", '/tmp/coin-alert-trigger.data')
            }
        }
    } catch (error) {}
" >/dev/null

# Set new alert
echo '---'
echo "Set Price Alert | color=green bash='$0' param1=set terminal=false"

# Refresh
echo '---'
echo "Clear Cache Data | color=blue bash='$0' param1=refresh terminal=false"

# Trigger alert
if [ -f '/tmp/coin-alert-trigger.data' ]; then
    alert_message=$(cat /tmp/coin-alert-trigger.data)
    osascript -e "display notification \"$alert_message\" with title \"Coin Alert\" sound name \"Tink\""
fi
