using Microsoft.Xna.Framework;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml.Linq;

namespace Barotrauma
{
    class ShiftSummary
    {
        class Casualty
        {
            public readonly CharacterInfo character;
            public readonly CauseOfDeath causeOfDeath;

            public readonly string description;

            public Casualty(CharacterInfo characterInfo, CauseOfDeath causeOfDeath, string description)
            {
                this.character = characterInfo;
                this.causeOfDeath = causeOfDeath;
                this.description = description;
            }
        }

        private Location startLocation, endLocation;

        private GameSession gameSession;

        private List<Casualty> casualties;

        private Mission selectedMission;
               
        public ShiftSummary(GameSession gameSession)
        {
            this.gameSession = gameSession;

            startLocation = gameSession.Map==null ? null : gameSession.Map.CurrentLocation;
            endLocation = gameSession.Map==null ? null : gameSession.Map.SelectedLocation;

            casualties = new List<Casualty>();

            foreach (Character character in gameSession.CrewManager.characters)
            {
                character.OnDeath = AddCasualty;
            }

            selectedMission = gameSession.Mission;
        }


        public void AddCasualty(Character character, CauseOfDeath causeOfDeath)
        {
            casualties.Add(new Casualty(character.Info, causeOfDeath, ""));
        }

        public GUIFrame CreateSummaryFrame(string endMessage)
        {
            bool singleplayer = GameMain.NetworkMember == null;

            bool gameOver = !gameSession.CrewManager.characters.Any(c => !c.IsDead);
            bool progress = Submarine.Loaded.AtEndPosition;
            
            GUIFrame frame = new GUIFrame(new Rectangle(0, 0, GameMain.GraphicsWidth, GameMain.GraphicsHeight), Color.Black * 0.8f);
            
            int width = 760, height = 400;
            GUIFrame innerFrame = new GUIFrame(new Rectangle(0, 0, width, height), null, Alignment.Center, GUI.Style, frame);
            
            int y = 0;
            
            if (singleplayer)
            {
                string summaryText = InfoTextManager.GetInfoText(gameOver ? "gameover" :
                    (progress ? "progress" : "return"));

                var infoText = new GUITextBlock(new Rectangle(0, y, 0, 50), summaryText, GUI.Style, innerFrame, true);
                y += infoText.Rect.Height;
            }


            if (!string.IsNullOrWhiteSpace(endMessage))
            {
                var endText = new GUITextBlock(new Rectangle(0, y, 0, 30), endMessage, GUI.Style, innerFrame, true);

                y += 30 + endText.Text.Split('\n').Length * 20;
            }

            new GUITextBlock(new Rectangle(0, y, 0, 20), "Crew status:", GUI.Style, innerFrame, GUI.LargeFont);
            y += 30;

            GUIListBox listBox = new GUIListBox(new Rectangle(0,y,0,90), null, Alignment.TopLeft, GUI.Style, innerFrame, true);

            int x = 0;
            foreach (Character character in gameSession.CrewManager.characters)
            {
                var characterFrame = new GUIFrame(new Rectangle(x, y, 170, 70), character.IsDead ? Color.DarkRed * 0.7f : Color.Transparent, GUI.Style, listBox);
                characterFrame.OutlineColor = Color.Transparent;
                characterFrame.Padding = new Vector4(5.0f, 5.0f, 5.0f, 5.0f);
                characterFrame.CanBeFocused = false;

                character.Info.CreateCharacterFrame(characterFrame,
                    character.Info.Job != null ? (character.Info.Name + '\n' + "(" + character.Info.Job.Name + ")") : character.Info.Name, null);
                

                string statusText;
                Color statusColor;

                var casualty = casualties.Find(c => c.character == character.Info);

                if (casualty != null)
                {
                    statusText = InfoTextManager.GetInfoText("CauseOfDeath." + casualty.causeOfDeath.ToString());
                    statusColor = Color.DarkRed;
                }
                else
                {
                    statusText = (character.Health / character.MaxHealth > 0.8f) ? "OK" : "Injured";
                    statusColor = (character.Health / character.MaxHealth > 0.8f) ? Color.DarkGreen : Color.DarkOrange;
                }

                new GUITextBlock(new Rectangle(0, 0, 0, 20), statusText,
                    GUI.Style, Alignment.BottomLeft, Alignment.TopCenter, characterFrame, true, GUI.SmallFont).Color = statusColor * 0.7f;

                x += characterFrame.Rect.Width + 10;
            }

            y += 120;

            if (GameMain.GameSession.Mission != null)
            {
                new GUITextBlock(new Rectangle(0, y, 0, 20), "Mission: " + GameMain.GameSession.Mission.Name, GUI.Style, innerFrame, GUI.LargeFont);
                y += 30;

                new GUITextBlock(new Rectangle(0, y, 0, 30),
                    (GameMain.GameSession.Mission.Completed) ? GameMain.GameSession.Mission.SuccessMessage : GameMain.GameSession.Mission.FailureMessage,
                    GUI.Style, innerFrame);
                y += 40;

                if (GameMain.GameSession.Mission.Completed && singleplayer)
                {
                    new GUITextBlock(new Rectangle(0, y, 0, 30), "Reward: " + GameMain.GameSession.Mission.Reward, GUI.Style, innerFrame);
                    y += 30;
                }  
            }

            return frame;
        }
    }
}