#!/bin/bash

rm stats.csv days.csv &> /dev/null
first_line=true

lines=$(cat light_cuts.csv | grep -c ,)
line=0
while read in
do
    line=$(( $line + 1 ))
    if [[ $in != 'status,date' ]]
    then
        state=$(echo $in | cut -d, -f1)
        date_var=$(echo $in | cut -d, -f2)

        if [[ $first_line = true ]]
        then
            prev_state=$state
            prev_date_var=$date_var
            first_line=false
        else
            D1=$(date -d "$prev_date_var" '+%s'); D2=$(date -d "$date_var" '+%s')
            stats_hours=$(echo "$(date -u -d@$((D2-D1)) +%H:%M)")
            echo "the generator was $prev_state for $stats_hours"
            day_date=$(echo $prev_date_var | cut --delimiter=' ' -f1 | cut -d, -f2)
            echo "$prev_state, $day_date, $stats_hours" >> stats.csv
            prev_state=$state
            prev_date_var=$date_var
        fi
    fi
    if [[ $line = $lines ]]
    then
        D1=$(date -d "$prev_date_var" '+%s'); D2=$(date '+%s')
        stats_hours=$(echo "$(date -u -d@$((D2-D1)) +%H:%M)")
        day_date=$(echo $prev_date_var | cut --delimiter=' ' -f1 | cut -d, -f2)
        echo "$prev_state, $day_date, $stats_hours" >> stats.csv
    fi
done < light_cuts.csv

first_line=true

lines=$(cat stats.csv | grep -c OFF)
line=0
while read in
do
    state=$(echo $in | cut -d, -f1)
    if [[ $state = 'OFF' ]]
    then
        line=$(( $line + 1 ))
        date_var=$(echo $in | cut -d, -f2)
        time=$(echo $in | cut -d, -f3)

        if [[ $first_line = true ]]
        then
            current_date=$date_var
            total_time=$time
            first_line=false
        else
            if [[ $current_date = $date_var ]]
            then
                total_time=$(date -d "$total_time $(date -d "$time" +'%H hours %M minutes')" +'%H:%M')
            else
                time_decimal=$(echo $(date -d "$total_time" +'%H').$(($(date -d "$total_time" +'%M') * 100 / 60)))
                echo "$current_date,$time_decimal" >> days.csv
                current_date=$date_var
                total_time=$time
            fi
        fi       
        if [[ $line = $lines ]]
        then
            time_decimal=$(echo $(date -d "$total_time" +'%H').$(($(date -d "$total_time" +'%M') * 100 / 60)))
            echo "$current_date,$time_decimal" >> days.csv
        fi
    fi
done < stats.csv

lines=$(cat days.csv | grep -c ,)
line=0
line_start=$(( $lines - 7 ))
day_num=0

while read in
do
    hours=$(echo $in | cut -d, -f2)
    line=$(( $line + 1 ))
    if [[ $line > $line_start ]]
    then
        day_num=$(( $day_num + 1 ))
        if [[ $day_num = 1 ]]; then day_1=$(echo $hours | sed "s/0//"); fi
        if [[ $day_num = 2 ]]; then day_2=$(echo $hours | sed "s/0//"); fi
        if [[ $day_num = 3 ]]; then day_3=$(echo $hours | sed "s/0//"); fi
        if [[ $day_num = 4 ]]; then day_4=$(echo $hours | sed "s/0//"); fi
        if [[ $day_num = 5 ]]; then day_5=$(echo $hours | sed "s/0//"); fi
        if [[ $day_num = 6 ]]; then day_6=$(echo $hours | sed "s/0//"); fi
        if [[ $day_num = 7 ]]; then day_7=$(echo $hours | sed "s/0//"); fi
    fi
done < days.csv

cat stats.html | sed "s/offtime_1/$day_1/" | sed "s/offtime_2/$day_2/"| sed "s/offtime_3/$day_3/" | sed "s/offtime_4/$day_4/" | sed "s/offtime_5/$day_5/" | sed "s/offtime_6/$day_6/" | sed "s/offtime_7/$day_7/" > stats/index.html