Update code of my custom plugin of products filter (WordPress & WooCommerce)

Please read work detail carefully. This is work of my client. I have also worked for his previous tasks, he is low mid budget client but there is much hope to keep getting tasks like this in future from him. so, its good. To make it clear. I would like to convey you my budget is 3500 to 4000 INR for whole plugin updation. Please apply to this work if you are ready to complete it within its budget. Please don’t do this like first apply for project then ask to raise amount of budget to many times. I have arranged details for this work that i am giving you below • I would like to give you information that a freelancer made the custom product's filter plugin for me which is already installed on my website. He was doing his work very well but he had to go and currently unavailable due to unavoidable reason for his personal & urgent work. He is offline since long time and I have no idea when he will available to work. So, I am now here to complete this and its further testing. • If you see this url [login to view URL] and check its filter functionality on left side bar, it have some inaccuracy like when you select multiple checkboxes in any numerical filter example - price, discount, Avg. Customer Rating then it will fetch inaccurate result like products in result will related to only one checkbox. • i also borrowed HUSKY plugin from someone to try. It was good but not fulfilling one of the my main requirement. • i have collected some points. I am sharing with you. • FILTER ERRORS TO RECTIFY o 1. Number based filters like - "Avg. Customer Rating", "Discount" fetching inacurate results o 2. url not reflecting price full interval. On selecting price interval "100 to 300" and "300 to 400". Url modified to "[login to view URL],400" o 3. More button is not working for remaining Brand. Also, Create option to assign "More" only if i need it. o 4. Filter sidebar should like if I insert any category in filter then filter should be shown to this categories and it's all child categories as well. o 5. Don't include space in starting of defined Unit. I will type it if I need this o 6. Also use label with interval gap input field • these are errors to rectify that i already given you above. first we need to resolve these asap. So you can proceed to insert some extra features that i want in this plugin. Mention below: - FILTER FEATURES TO INSERT  1. Clear button with each filter to remove their corresponding conditions  2. Show only "In Stock" custom field product by default. Show "Out of Stock" only after selecting it's checkbox  3. Rather than only one field "Values", there should be separtely addable row for each option - "Value display name", "Condition Type", "Condition Related Value"  4. Slidebar display option for prices  5. Star display option • Basically, I want product filter like given amazon link which works on the basis of custom fields, you can check link for overall plugin requirement and need. link given below • [login to view URL] • If you see backend of this plugin (config page) after login, all checkboxes data of a filter contained in field name "Values" but for actual better usgae. I need that, for each checkbox of filter, there should be option to define multiple conditions for each checkbox, condition given in below list such as :- o does not equal o is greater than o is greater than or equal to o is less than o is less than or equal o to begins with o does not begin with o ends with o does not end with o contains o does not contain o between (intervals) i got this idea from excel spreadsheet filter, need to apply on each checkbox. • one more thing, i just wanted to know, can you make filtering faster even if there is thousand and lacs of products in future. • i think i told given you all noted details. One important things i already told you i want filter which give feel like amazon filter to customer. if you see any more things while check amazon filter please discuss with me for this to add or not. • This is work of my client. I have also worked for his previous tasks, he is low mid budget client but there is much hope to keep getting tasks like this in future from him. so, its good. Please ask if you need any kind of help or anything is not clear.