/*
 * File: D:\shadowed-realms-mobile\ShadowedRealmsMobile\src\server\ShadowedRealms.Data\Repositories\Alliance\AllianceRepository.cs
 * Created: 2025-10-19
 * Last Modified: 2025-10-19
 * Description: Alliance repository implementation providing alliance-specific operations including coalition systems,
 *              territory management, research trees, and multi-alliance cooperation mechanics.
 * Last Edit Notes: Fixed to match actual Alliance and Player model properties
 */

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using ShadowedRealms.Core.Interfaces;
using ShadowedRealms.Core.Interfaces.Repositories;
using ShadowedRealms.Core.Models;
using ShadowedRealms.Data.Contexts;
using System.Linq;
using System.Linq.Expressions;
using AllianceModel = ShadowedRealms.Core.Models.Alliance.Alliance;
using PlayerModel = ShadowedRealms.Core.Models.Player.Player;

namespace ShadowedRealms.Data.Repositories.Alliance
{
    /// <summary>
    /// Alliance repository implementation providing specialized alliance operations.
    /// Handles coalition systems, territory management, research trees, and alliance governance.
    /// </summary>
    public class AllianceRepository : Repository<AllianceModel, int>, IAllianceRepository
    {
        public AllianceRepository(GameDbContext context, ILogger<AllianceRepository> logger)
            : base(context, logger)
        {
        }

        #region Interface Implementation Stubs

        // These methods are required by IAllianceRepository but not implemented in the current version
        // They will be implemented as needed during development

        public Task<AllianceModel> CreateNewAllianceAsync(string name, string tag, int leaderId, int kingdomId, object settings, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("CreateNewAllianceAsync will be implemented in next phase");
        }

        public Task<AllianceModel?> GetAllianceByTagAsync(string tag, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetAllianceByTagAsync will be implemented in next phase");
        }

        public Task<bool> DisbandAllianceAsync(int allianceId, int kingdomId, string reason, int requestedById, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("DisbandAllianceAsync will be implemented in next phase");
        }

        public Task<bool> ArchiveAllianceAsync(int allianceId, int kingdomId, string reason, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("ArchiveAllianceAsync will be implemented in next phase");
        }

        public Task<object> CreateCoalitionAsync(IEnumerable<int> allianceIds, string coalitionName, string description, int kingdomId, object settings, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("CreateCoalitionAsync will be implemented in next phase");
        }

        public Task<IEnumerable<(AllianceModel Alliance, double CompatibilityScore, string[] SynergyAreas)>> GetCoalitionEligibleAlliancesAsync(int kingdomId, string criteria, int requestedById, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetCoalitionEligibleAlliancesAsync will be implemented in next phase");
        }

        public Task<AllianceModel> UpdateCoalitionParticipationAsync(int allianceId, int? coalitionId, string? role, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("UpdateCoalitionParticipationAsync will be implemented in next phase");
        }

        public Task<object> GetCoalitionPerformanceMetricsAsync(int coalitionId, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetCoalitionPerformanceMetricsAsync will be implemented in next phase");
        }

        public Task<IEnumerable<AllianceModel>> DissolveCoalitionAsync(int coalitionId, int kingdomId, string reason, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("DissolveCoalitionAsync will be implemented in next phase");
        }

        public Task<AllianceModel> UpdateAllianceResearchAsync(int allianceId, string researchType, int level, Dictionary<int, object> contributions, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("UpdateAllianceResearchAsync will be implemented in next phase");
        }

        public Task<IEnumerable<AllianceModel>> GetAlliancesByResearchSpecializationAsync(int kingdomId, Dictionary<string, int> researchCriteria, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetAlliancesByResearchSpecializationAsync will be implemented in next phase");
        }

        public Task<object> CalculateAllianceResearchBonusesAsync(int allianceId, int kingdomId, bool includeCoalitionBonuses, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("CalculateAllianceResearchBonusesAsync will be implemented in next phase");
        }

        public Task<AllianceModel> RecordResearchContributionAsync(int allianceId, int playerId, object contribution, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("RecordResearchContributionAsync will be implemented in next phase");
        }

        public Task<AllianceModel> ClaimTerritoryAsync(int allianceId, (int X, int Y) coordinates, string territoryType, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("ClaimTerritoryAsync will be implemented in next phase");
        }

        public Task<AllianceModel> UpgradeTerritoryBuildingsAsync(int allianceId, int territoryId, Dictionary<string, int> upgrades, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("UpgradeTerritoryBuildingsAsync will be implemented in next phase");
        }

        public Task<IEnumerable<(AllianceModel Alliance, object TerritoryDetails)>> GetAlliancesInContestedZoneAsync((int X, int Y) coordinates, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetAlliancesInContestedZoneAsync will be implemented in next phase");
        }

        public Task<object> CalculateTerritoryBonusesAsync(int allianceId, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("CalculateTerritoryBonusesAsync will be implemented in next phase");
        }

        public Task<AllianceModel> ReleaseTerritoryAsync(int allianceId, IEnumerable<int>? territoryIds, string reason, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("ReleaseTerritoryAsync will be implemented in next phase");
        }

        public Task<AllianceModel> UpdateLeadershipHierarchyAsync(int allianceId, Dictionary<int, string> roleUpdates, int requestedById, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("UpdateLeadershipHierarchyAsync will be implemented in next phase");
        }

        public Task<object> GetAllianceLeadershipAsync(int allianceId, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetAllianceLeadershipAsync will be implemented in next phase");
        }

        public Task<(bool IsAuthorized, string AuthorityLevel, string[] Restrictions)> ValidateLeadershipActionAsync(int allianceId, int playerId, string action, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("ValidateLeadershipActionAsync will be implemented in next phase");
        }

        public Task<object> InitiateLeadershipTransitionAsync(int allianceId, string transitionType, IEnumerable<int> candidateIds, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("InitiateLeadershipTransitionAsync will be implemented in next phase");
        }

        public Task<object> ProcessMemberApplicationAsync(int allianceId, int playerId, string decision, int decidedById, int? kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("ProcessMemberApplicationAsync will be implemented in next phase");
        }

        public Task<AllianceModel> RemoveMemberAsync(int allianceId, int playerId, string reason, int removedById, int? kingdomId, string? additionalNotes, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("RemoveMemberAsync will be implemented in next phase");
        }

        public Task<AllianceModel> UpdateMemberContributionsAsync(int allianceId, int playerId, object contributions, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("UpdateMemberContributionsAsync will be implemented in next phase");
        }

        public Task<object> GetMemberPerformanceAnalyticsAsync(int allianceId, string timeframe, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetMemberPerformanceAnalyticsAsync will be implemented in next phase");
        }

        public Task<AllianceModel> ManageAllianceTreasuryAsync(int allianceId, object transaction, int playerId, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("ManageAllianceTreasuryAsync will be implemented in next phase");
        }

        public Task<AllianceModel> FacilitateResourceSharingAsync(int allianceId, int fromPlayerId, int toPlayerId, object resources, string reason, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("FacilitateResourceSharingAsync will be implemented in next phase");
        }

        public Task<object> GetAllianceEconomicAnalyticsAsync(int allianceId, TimeSpan timeRange, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetAllianceEconomicAnalyticsAsync will be implemented in next phase");
        }

        public Task<object> GetAlliancePerformanceMetricsAsync(int allianceId, int kingdomId, string metricType, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetAlliancePerformanceMetricsAsync will be implemented in next phase");
        }

        public Task<IEnumerable<(AllianceModel Alliance, object RankingValue, int Rank, object CompetitiveAnalysis)>> GetAllianceRankingsAsync(int kingdomId, string rankingType, int kingdomId2, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GetAllianceRankingsAsync will be implemented in next phase");
        }

        public Task<object> GenerateAllianceHealthReportAsync(int allianceId, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("GenerateAllianceHealthReportAsync will be implemented in next phase");
        }

        public Task<object> InitiateKvKHostSelectionAsync(int allianceId, int kingdomId, IEnumerable<string> candidateTypes, int requestedById, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("InitiateKvKHostSelectionAsync will be implemented in next phase");
        }

        public Task<object> ProcessKvKHostVoteAsync(int allianceId, int playerId, object vote, int kingdomId, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("ProcessKvKHostVoteAsync will be implemented in next phase");
        }

        public Task<AllianceModel> FinalizeKvKHostSelectionAsync(int kingdomId, object selectionResults, int finalizedById, CancellationToken cancellationToken = default)
        {
            throw new NotImplementedException("FinalizeKvKHostSelectionAsync will be implemented in next phase");
        }

        #endregion

        #region Working Alliance Management Methods

        /// <summary>
        /// Gets alliance statistics using correct model properties
        /// </summary>
        public async Task<Dictionary<string, object>> GetAllianceStatsAsync(int allianceId, int kingdomId)
        {
            try
            {
                _logger.LogDebug("Getting comprehensive statistics for Alliance {AllianceId}", allianceId);

                var alliance = await _context.Alliances
                    .Include(a => a.Members.Where(p => p.IsActive))
                    .FirstOrDefaultAsync(a => a.Id == allianceId && a.KingdomId == kingdomId);

                if (alliance == null)
                {
                    throw new InvalidOperationException($"Alliance {allianceId} not found in Kingdom {kingdomId}");
                }

                var members = alliance.Members.ToList();
                var totalCombats = members.Sum(p => p.AttacksWon + p.AttacksLost + p.DefensesWon + p.DefensesLost);
                var totalWins = members.Sum(p => p.AttacksWon + p.DefensesWon);

                var stats = new Dictionary<string, object>
                {
                    ["AllianceId"] = allianceId,
                    ["AllianceName"] = alliance.Name,
                    ["Level"] = alliance.Level,
                    ["Experience"] = alliance.ExperiencePoints, // Using correct property name
                    ["MemberCount"] = alliance.ActiveMemberCount, // Using computed property
                    ["MaxMemberCapacity"] = alliance.MaxMembers, // Using correct property name
                    ["TotalPower"] = alliance.Power, // Using correct property name
                    ["AverageMemberPower"] = alliance.AverageMemberPower,
                    ["HasTerritory"] = alliance.HasTerritory,
                    ["IsInCoalition"] = alliance.CurrentCoalitionId.HasValue, // Using correct property
                    ["CombatStats"] = new Dictionary<string, object>
                    {
                        ["TotalCombats"] = totalCombats,
                        ["TotalWins"] = totalWins,
                        ["WinRate"] = totalCombats > 0 ? (double)totalWins / totalCombats * 100 : 0,
                        ["CombatEffectiveness"] = CalculateAllianceCombatEffectiveness(members)
                    },
                    ["CreatedAt"] = alliance.CreatedAt,
                    ["LastActivity"] = alliance.Members.Max(m => m.LastActiveAt) // Using correct property
                };

                _logger.LogDebug("Retrieved comprehensive statistics for Alliance {AllianceId}: {MemberCount} members, {TotalPower} power",
                    allianceId, alliance.ActiveMemberCount, alliance.Power);

                return stats;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Error getting statistics for Alliance {AllianceId}", allianceId);
                throw new InvalidOperationException($"Failed to get statistics for Alliance {allianceId}", ex);
            }
        }

        /// <summary>
        /// Gets alliance members with correct property names
        /// </summary>
        public async Task<IEnumerable<object>> GetAllianceMembersAsync(int allianceId, int kingdomId)
        {
            try
            {
                _logger.LogDebug("Getting members for Alliance {AllianceId} in Kingdom {KingdomId}", allianceId, kingdomId);

                var members = await _context.Players
                    .Where(p => p.AllianceId == allianceId && p.KingdomId == kingdomId && p.IsActive)
                    .Select(p => new
                    {
                        p.Id,
                        PlayerName = p.Name, // Using correct property name
                        p.CastleLevel,
                        p.Power,
                        LastActivity = p.LastActiveAt, // Using correct property name
                        p.VipLevel, // Using correct property name
                        CombatStats = new
                        {
                            AttackWins = p.AttacksWon, // Using correct property name
                            AttackLosses = p.AttacksLost, // Using correct property name
                            DefenseWins = p.DefensesWon, // Using correct property name
                            DefenseLosses = p.DefensesLost, // Using correct property name
                            WinRate = p.WinRate // Using computed property from model
                        }
                    })
                    .OrderByDescending(p => p.Power)
                    .ToListAsync();

                _logger.LogDebug("Retrieved {Count} members for Alliance {AllianceId}", members.Count, allianceId);

                return members;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Error getting members for Alliance {AllianceId}", allianceId);
                throw new InvalidOperationException($"Failed to get members for Alliance {allianceId}", ex);
            }
        }

        /// <summary>
        /// Simple coalition check using correct properties
        /// </summary>
        public async Task<bool> IsInCoalitionAsync(int allianceId, int kingdomId)
        {
            try
            {
                var alliance = await _context.Alliances
                    .FirstOrDefaultAsync(a => a.Id == allianceId && a.KingdomId == kingdomId);

                return alliance?.CurrentCoalitionId.HasValue ?? false; // Using correct property
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Error checking coalition status for Alliance {AllianceId}", allianceId);
                return false;
            }
        }

        #endregion

        #region Helper Methods

        /// <summary>
        /// Calculates alliance combat effectiveness using correct property names
        /// </summary>
        private double CalculateAllianceCombatEffectiveness(List<PlayerModel> members)
        {
            if (!members.Any()) return 0;

            var totalCombats = members.Sum(p => p.AttacksWon + p.AttacksLost + p.DefensesWon + p.DefensesLost);
            if (totalCombats == 0) return 0;

            var totalWins = members.Sum(p => p.AttacksWon + p.DefensesWon);
            var winRate = (double)totalWins / totalCombats;
            var participationRate = (double)members.Count(p => (p.AttacksWon + p.AttacksLost + p.DefensesWon + p.DefensesLost) > 0) / members.Count;

            return (winRate * 100) * (1 + participationRate);
        }

        #endregion
    }
}