package model_classes

import (
	"net/http"
	"strconv"

	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/utils"
	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/models/utils"
)

func HandleList(handle *Handle) {
    handle.Get("/models/data/list", func(w http.ResponseWriter, r *http.Request, c *Context) *Error {
        if !CheckAuthLevel(1, w, r, c) {
            return nil
        }
        if c.Mode == JSON {
            panic("TODO JSON on /models/data/list")
        }

        id, err := GetIdFromUrl(r, "id")
        if err != nil {
            return ErrorCode(err, 400, c.AddMap(nil))
        }
        
        page := 0
        if r.URL.Query().Has("page") {
            page_url := r.URL.Query().Get("page")
            page_url_number, err := strconv.Atoi(page_url)
            if err != nil {
                return ErrorCode(err, http.StatusBadRequest, c.AddMap(nil))
            }
            page = page_url_number
        }

        class_rows, err := handle.Db.Query("select name, model_id from model_classes where id=$1;", id)
        if err != nil {
            return Error500(err)
        }
        defer class_rows.Close()

        if !class_rows.Next() {
            return ErrorCode(nil, 404, c.AddMap(nil))
        }

        name := ""
        model_id := ""
        if err = class_rows.Scan(&name, &model_id); err != nil {
            return Error500(nil)
        }

        model, err := GetBaseModel(c.Db, model_id)
        if err != nil {
            return Error500(err)
        }

        rows, err := handle.Db.Query("select id, file_path, model_mode, status from model_data_point where class_id=$1 limit 11 offset $2;", id, page * 10)
        if err != nil {
            return Error500(err)
        }
        defer rows.Close()

        type baserow struct {
            Id string
            FilePath string
            Mode int
            Status int
        }

        got := []baserow{}

        for rows.Next() {
            nrow := baserow{}
            err = rows.Scan(&nrow.Id, &nrow.FilePath, &nrow.Mode, &nrow.Status)
            if err != nil {
                return Error500(err)
            }
            got = append(got, nrow)
        }

        max_len := min(11, len(got))
        
        LoadDefineTemplate(w, "/models/edit.html", "data-model-create-class-table-table", c.AddMap(AnyMap{
            "List": got[0:max_len],
            "Page": page,
            "Id": id,
            "Name": name,
            "Model": model,
            "ShowNext": len(got) == 11,
        }))
        return nil
    })
}