/// <reference path="../typings/browser/ambient/jquery/index.d.ts" />
/// <reference path="types.ts" />
import { Injectable } from "@angular/core";
import { Http } from "@angular/http";
import { Reference } from "./Reference";

@Injectable()
export class BibleService
{
    chapters: BiblePassage[];
    result: BiblePassageResult;
    count: number = 0;
    $: any;

    constructor(private http: Http)
    {
    }
    
    getResult(section: Section): BiblePassageResult
    {
        try
        {
            var self = this;
            this.chapters = []; // the verses from the chapter.
            this.result = {
                cs: [],
                testament: "",
                ref: Reference.toString(section),
                status: 0,
                msg: ":)"
            };
            this.count = Number(section.end.chapter) - Number(section.start.chapter) + 1;

            for (let i = Number(section.start.chapter); i <= Number(section.end.chapter); i++)
            {
                const url = "data/bibles/kjv_strongs/" + section.start.book + "-" + i + ".json";
                
                $.ajax({
                    async: false,
                    type: "GET",
                    url: url,
                    dataType: "json",
                    success: function (d: BiblePassage, t, x)
                    {
                        self.chapters.push(d);
                    },
                    error: function (request, status, error)
                    {
                        self.result.status = -1;
                        self.result.msg = "Unable to retrieve bible passage " + self.result.ref + ".";
                    }
                });
            }

            if (self.result.status == -1)
                return self.result;

            for (let j = 0; j < this.chapters.length; j++)
            {
                const vss: BibleVerse[] = [];
                let start: number;
                let end;

                // figure out the start verse.
                if (j === 0)
                {
                    start = parseInt(section.start.verse);
                } else
                {
                    start = 1;
                }

                // figure out the end verse
                if ((j + 1) === this.chapters.length)
                {
                    end = section.end.verse;
                } else
                {
                    end = "*";
                }

                // get the verses requested.
                const tvs = this.chapters[j].vss.length;
                if (end == "*" || parseInt(end) > tvs)
                {
                    end = tvs;
                }

                for (let i = start; i <= end; i++)
                {
                    // we're using c based indexes here, so the index is 1 less than the verse #.
                    vss.push(this.chapters[j].vss[i - 1]);
                }

                this.result.cs.push({
                    "ch": this.chapters[j].ch,
                    "vss": vss
                });
            }

            if (section.start.book >= 40)
            {
                this.result.testament = "new";
            } else
            {
                this.result.testament = "old";
            }
            return this.result;
        } catch (error)
        {
            console.log(error);
        }
        return null;
    }
}