<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Illuminate\Database\Eloquent\SoftDeletes;

class StandalonePostgresql extends BaseModel
{
    use HasFactory, SoftDeletes;

    protected $guarded = [];
    protected $casts = [
        'init_scripts' => 'array',
        'postgres_password' => 'encrypted',
    ];

    protected static function booted()
    {
        static::created(function ($database) {
            LocalPersistentVolume::create([
                'name' => 'postgres-data-' . $database->uuid,
                'mount_path' => '/var/lib/postgresql/data',
                'host_path' => null,
                'resource_id' => $database->id,
                'resource_type' => $database->getMorphClass(),
                'is_readonly' => true
            ]);
        });
        static::deleting(function ($database) {
            $storages = $database->persistentStorages()->get();
            $server = data_get($database, 'destination.server');
            if ($server) {
                foreach ($storages as $storage) {
                    instant_remote_process(["docker volume rm -f $storage->name"], $server, false);
                }
            }
            $database->scheduledBackups()->delete();
            $database->persistentStorages()->delete();
            $database->environment_variables()->delete();
            $database->tags()->detach();
        });
    }
    public function workdir()
    {
        return database_configuration_dir() . "/{$this->uuid}";
    }
    public function delete_configurations()
    {
        $server = data_get($this, 'destination.server');
        $workdir = $this->workdir();
        if (str($workdir)->endsWith($this->uuid)) {
            instant_remote_process(["rm -rf " . $this->workdir()], $server, false);
        }
    }
    public function isConfigurationChanged(bool $save = false)
    {
        $newConfigHash =  $this->image . $this->ports_mappings . $this->postgres_initdb_args . $this->postgres_host_auth_method;
        $newConfigHash .= json_encode($this->environment_variables()->get('updated_at'));
        $newConfigHash = md5($newConfigHash);
        $oldConfigHash = data_get($this, 'config_hash');
        if ($oldConfigHash === null) {
            if ($save) {
                $this->config_hash = $newConfigHash;
                $this->save();
            }
            return true;
        }
        if ($oldConfigHash === $newConfigHash) {
            return false;
        } else {
            if ($save) {
                $this->config_hash = $newConfigHash;
                $this->save();
            }
            return true;
        }
    }
    public function isExited()
    {
        return (bool) str($this->status)->startsWith('exited');
    }
    public function realStatus()
    {
        return $this->getRawOriginal('status');
    }
    public function status(): Attribute
    {
        return Attribute::make(
            set: function ($value) {
                if (str($value)->contains('(')) {
                    $status = str($value)->before('(')->trim()->value();
                    $health = str($value)->after('(')->before(')')->trim()->value() ?? 'unhealthy';
                } else if (str($value)->contains(':')) {
                    $status = str($value)->before(':')->trim()->value();
                    $health = str($value)->after(':')->trim()->value() ?? 'unhealthy';
                } else {
                    $status = $value;
                    $health = 'unhealthy';
                }
                return "$status:$health";
            },
            get: function ($value) {
                if (str($value)->contains('(')) {
                    $status = str($value)->before('(')->trim()->value();
                    $health = str($value)->after('(')->before(')')->trim()->value() ?? 'unhealthy';
                } else if (str($value)->contains(':')) {
                    $status = str($value)->before(':')->trim()->value();
                    $health = str($value)->after(':')->trim()->value() ?? 'unhealthy';
                } else {
                    $status = $value;
                    $health = 'unhealthy';
                }
                return "$status:$health";
            },
        );
    }
    public function tags()
    {
        return $this->morphToMany(Tag::class, 'taggable');
    }
    public function project()
    {
        return data_get($this, 'environment.project');
    }
    public function link()
    {
        if (data_get($this, 'environment.project.uuid')) {
            return route('project.database.configuration', [
                'project_uuid' => data_get($this, 'environment.project.uuid'),
                'environment_name' => data_get($this, 'environment.name'),
                'database_uuid' => data_get($this, 'uuid')
            ]);
        }
        return null;
    }
    public function isLogDrainEnabled()
    {
        return data_get($this, 'is_log_drain_enabled', false);
    }

    public function portsMappings(): Attribute
    {
        return Attribute::make(
            set: fn ($value) => $value === "" ? null : $value,
        );
    }

    public function portsMappingsArray(): Attribute
    {
        return Attribute::make(
            get: fn () => is_null($this->ports_mappings)
                ? []
                : explode(',', $this->ports_mappings),

        );
    }
    public function team()
    {
        return data_get($this, 'environment.project.team');
    }
    public function type(): string
    {
        return 'standalone-postgresql';
    }
    public function get_db_url(bool $useInternal = false): string
    {
        if ($this->is_public && !$useInternal) {
            return "postgres://{$this->postgres_user}:{$this->postgres_password}@{$this->destination->server->getIp}:{$this->public_port}/{$this->postgres_db}";
        } else {
            return "postgres://{$this->postgres_user}:{$this->postgres_password}@{$this->uuid}:5432/{$this->postgres_db}";
        }
    }

    public function environment()
    {
        return $this->belongsTo(Environment::class);
    }

    public function fileStorages()
    {
        return $this->morphMany(LocalFileVolume::class, 'resource');
    }

    public function destination()
    {
        return $this->morphTo();
    }

    public function environment_variables(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class);
    }

    public function runtime_environment_variables(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class);
    }

    public function persistentStorages()
    {
        return $this->morphMany(LocalPersistentVolume::class, 'resource');
    }

    public function scheduledBackups()
    {
        return $this->morphMany(ScheduledDatabaseBackup::class, 'database');
    }
}