using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Migrations;

namespace EllieBot.Migrations;

public static class MigrationQueries
{
    public static void MigrateSar(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.Sql("""
                             INSERT INTO GroupName (Number, GuildConfigId)
                             SELECT DISTINCT "Group", GC.Id
                             FROM SelfAssignableRoles as SAR
                             INNER JOIN GuildConfigs as GC
                             ON SAR.GuildId = GC.GuildId
                             WHERE SAR.GuildId not in (SELECT GuildConfigs.GuildId from GroupName LEFT JOIN GuildConfigs ON GroupName.GuildConfigId = GuildConfigs.Id);

                             INSERT INTO SarGroup (Id, GroupNumber, Name, IsExclusive, GuildId)
                             SELECT GN.Id, GN.Number, GN.Name, GC.ExclusiveSelfAssignedRoles, GC.GuildId
                             FROM GroupName as GN
                             INNER JOIN GuildConfigs as GC ON GN.GuildConfigId = GC.Id;

                             INSERT INTO Sar (GuildId, RoleId, SarGroupId, LevelReq)
                             SELECT SAR.GuildId, SAR.RoleId, SG2.Id, MIN(SAR.LevelRequirement)
                              FROM SelfAssignableRoles as SAR
                              INNER JOIN (SELECT GuildId FROM GroupName as gn
                             	INNER JOIN GuildConfigs as gc ON gn.GuildConfigId =gc.Id
                              ) as SG 
                             	ON SG.GuildId = SAR.GuildId 
                              INNER JOIN (SELECT gn.Id, Number FROM GroupName as gn
                             	INNER JOIN GuildConfigs as gc ON gn.GuildConfigId =gc.Id
                              ) as SG2
                             	ON SG2.Number = SAR."Group"
                              GROUP BY SAR.GuildId, SAR.RoleId;

                             INSERT INTO SarAutoDelete (GuildId, IsEnabled)
                             SELECT GuildId, AutoDeleteSelfAssignedRoleMessages FROM GuildConfigs WHERE AutoDeleteSelfAssignedRoleMessages = TRUE;
                             """);
    }

    public static void UpdateUsernames(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.Sql("UPDATE DiscordUser SET Username = '??' || Username WHERE Discriminator = '????';");
    }

    public static void MigrateRero(MigrationBuilder migrationBuilder)
    {
        if (migrationBuilder.IsSqlite())
        {
            migrationBuilder.Sql(
                @"insert or ignore into reactionroles(guildid, channelid, messageid, emote, roleid, 'group', levelreq, dateadded)
select guildid, channelid, messageid, emotename, roleid, exclusive, 0, reactionrolemessage.dateadded
from reactionrole
left join reactionrolemessage on reactionrolemessage.id = reactionrole.reactionrolemessageid
left join guildconfigs on reactionrolemessage.guildconfigid = guildconfigs.id;");
        }
        else if (migrationBuilder.IsNpgsql())
        {
            migrationBuilder.Sql(
                @"insert into reactionroles(guildid, channelid, messageid, emote, roleid, ""group"", levelreq, dateadded)
            select guildid, channelid, messageid, emotename, roleid, exclusive::int, 0, reactionrolemessage.dateadded
                from reactionrole
                left join reactionrolemessage on reactionrolemessage.id = reactionrole.reactionrolemessageid
            left join guildconfigs on reactionrolemessage.guildconfigid = guildconfigs.id
            ON CONFLICT DO NOTHING;");
        }
        else
        {
            throw new NotSupportedException("This database provider doesn't have an implementation for MigrateRero");
        }
    }

    public static void GuildConfigCleanup(MigrationBuilder builder)
    {
        builder.Sql($"""
                     DELETE FROM "DelMsgOnCmdChannel" WHERE "GuildConfigId" is NULL;
                     DELETE FROM "WarningPunishment" WHERE "GuildConfigId" NOT IN (SELECT "Id" from "GuildConfigs");
                     DELETE FROM "StreamRoleBlacklistedUser" WHERE "StreamRoleSettingsId" is NULL;
                     DELETE FROM "Permissions" WHERE "GuildConfigId" NOT IN (SELECT "Id" from "GuildConfigs");
                     """);
    }

    public static void GreetSettingsCopy(MigrationBuilder builder)
    {
        builder.Sql("""
                    INSERT INTO GreetSettings (GuildId, GreetType, MessageText, IsEnabled, ChannelId, AutoDeleteTimer)
                    SELECT GuildId, 0, ChannelGreetMessageText, SendChannelGreetMessage, GreetMessageChannelId, AutoDeleteGreetMessagesTimer
                    FROM GuildConfigs
                    WHERE SendChannelGreetMessage = TRUE;

                    INSERT INTO GreetSettings (GuildId, GreetType, MessageText, IsEnabled, ChannelId, AutoDeleteTimer)
                    SELECT GuildId, 1, DmGreetMessageText, SendDmGreetMessage, GreetMessageChannelId, 0
                    FROM GuildConfigs
                    WHERE SendDmGreetMessage = TRUE;

                    INSERT INTO GreetSettings (GuildId, GreetType, MessageText, IsEnabled, ChannelId, AutoDeleteTimer)
                    SELECT GuildId, 2, ChannelByeMessageText, SendChannelByeMessage, ByeMessageChannelId, AutoDeleteByeMessagesTimer
                    FROM GuildConfigs
                    WHERE SendChannelByeMessage = TRUE;

                    INSERT INTO GreetSettings (GuildId, GreetType, MessageText, IsEnabled, ChannelId, AutoDeleteTimer)
                    SELECT GuildId, 3, BoostMessage, SendBoostMessage, BoostMessageChannelId, BoostMessageDeleteAfter
                    FROM GuildConfigs
                    WHERE SendBoostMessage = TRUE;
                    """);
    }

    public static void AddGuildIdsToWarningPunishment(MigrationBuilder builder)
    {
        builder.Sql("""
                    DELETE FROM WarningPunishment WHERE GuildConfigId IS NULL OR GuildConfigId NOT IN (SELECT Id FROM GuildConfigs);
                    UPDATE WarningPunishment 
                    SET GuildId = (SELECT GuildId FROM GuildConfigs WHERE Id = GuildConfigId);

                    DELETE FROM WarningPunishment as wp
                    WHERE (wp.Count, wp.GuildConfigId) in (
                        SELECT wp2.Count, wp2.GuildConfigId FROM WarningPunishment as wp2
                        GROUP BY wp2.Count, wp2.GuildConfigId
                        HAVING COUNT(id) > 1
                    );
                    """);
    }
}