//
// This code is part of Document Solutions for Word demos.
// Copyright (c) MESCIUS inc. All rights reserved.
//
using System;
using System.IO;
using System.Drawing;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using GrapeCity.Documents.Word;

namespace DsWordWeb.Demos
{
    // This example demonstrates the use of collection state functions
    // Index(), IsFirst() and IsLast() that can be used with the report templates
    // 'calc' feature.
    public class DataTplCollState
    {
        public GcWordDocument CreateDocx()
        {
            // The original data source (ocean and sea data from Wikipedia):
            var oceans = new[]
            {
                new { name = "Pacific", areaOfWorldOcean = 0.466, volumeOfWorldOcean = 0.501, seas = new[]
                    { new {name = "Australasian Mediterranean Sea" }, new { name = "Philippine Sea" }, new { name = "Coral Sea" }, new { name = "South China Sea"}  }
                },
                new { name = "Atlantic", areaOfWorldOcean = 0.235, volumeOfWorldOcean = 0.233, seas = new[]
                    { new {name = "Sargasso Sea" }, new { name = "Caribbean Sea" }, new { name = "Mediterranean Sea" }, new { name = "Gulf of Guinea" } }
                },
                new { name = "Indian", areaOfWorldOcean = 0.195, volumeOfWorldOcean = 0.198, seas = new[]
                    { new {name = "Arabian Sea" }, new { name = "Bay of Bengal" }, new { name = "Andaman Sea" }, new { name = "Laccadive Sea" } }
                },
                new { name = "Southern", areaOfWorldOcean = 0.061, volumeOfWorldOcean = 0.054, seas = new[]
                    { new {name = "Weddell Sea" }, new { name = "Somov Sea" }, new { name = "Riiser-Larsen Sea" }, new { name = "Lazarev Sea" } }
                },
                new { name = "Arctic", areaOfWorldOcean = 0.043, volumeOfWorldOcean = 0.014, seas = new[]
                    { new {name = "Barents Sea" }, new { name = "Greenland Sea" }, new { name = "East Siberian Sea" }, new { name = "Kara Sea" } }
                },
            };
            // Flatten the data source to get a flat collection of seas:
            var seas = oceans.SelectMany(o => o.seas);

            // Create the document and add the sea list as the data source:
            var doc = new GcWordDocument();
            doc.DataTemplate.DataSources.Add("ds", seas);

            // Template that for each record (sea) prints:
            // - The 1-based number of the collection element (sea) and the total number of records;
            // - The sea name;
            // - The string '(first)' after the first element (sea);
            // - The string '(last)' after the last element (sea):
            var p = doc.Body.Paragraphs.Add(
                "Record {{calc Index(ds)+1}} of {{calc Count(ds)}}: {{ds.name}}{{if IsFirst(ds)}} (first){{else}}{{if IsLast(ds)}} (last){{endif}}{{endif}}");

            // Expand the template:
            doc.DataTemplate.Process(CultureInfo.GetCultureInfo("en-US"));

            // Done:
            return doc;
        }
    }
}