<?php

namespace App\Models;

use App\Models\EnvironmentVariable as ModelsEnvironmentVariable;
use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Str;
use Symfony\Component\Yaml\Yaml;

class EnvironmentVariable extends Model
{
    protected $guarded = [];

    protected $casts = [
        'key' => 'string',
        'value' => 'encrypted',
        'is_build_time' => 'boolean',
        'is_multiline' => 'boolean',
        'is_preview' => 'boolean',
        'version' => 'string',
    ];

    protected $appends = ['real_value', 'is_shared'];

    protected static function booted()
    {
        static::created(function (EnvironmentVariable $environment_variable) {
            if ($environment_variable->application_id && ! $environment_variable->is_preview) {
                $found = ModelsEnvironmentVariable::where('key', $environment_variable->key)->where('application_id', $environment_variable->application_id)->where('is_preview', true)->first();
                if (! $found) {
                    $application = Application::find($environment_variable->application_id);
                    if ($application->build_pack !== 'dockerfile') {
                        ModelsEnvironmentVariable::create([
                            'key' => $environment_variable->key,
                            'value' => $environment_variable->value,
                            'is_build_time' => $environment_variable->is_build_time,
                            'is_multiline' => $environment_variable->is_multiline ?? false,
                            'application_id' => $environment_variable->application_id,
                            'is_preview' => true,
                        ]);
                    }
                }
            }
            $environment_variable->update([
                'version' => config('version'),
            ]);
        });
    }

    public function service()
    {
        return $this->belongsTo(Service::class);
    }

    protected function value(): Attribute
    {
        return Attribute::make(
            get: fn (?string $value = null) => $this->get_environment_variables($value),
            set: fn (?string $value = null) => $this->set_environment_variables($value),
        );
    }

    public function resource()
    {
        $resource = null;
        if ($this->application_id) {
            $resource = Application::find($this->application_id);
        } elseif ($this->service_id) {
            $resource = Service::find($this->service_id);
        } elseif ($this->database_id) {
            $resource = getResourceByUuid($this->parameters['database_uuid'], data_get(auth()->user()->currentTeam(), 'id'));
        }

        return $resource;
    }

    public function realValue(): Attribute
    {
        $resource = $this->resource();

        return Attribute::make(
            get: function () use ($resource) {
                $env = $this->get_real_environment_variables($this->value, $resource);

                return data_get($env, 'value', $env);
                if (is_string($env)) {
                    return $env;
                }

                return $env->value;
            }
        );
    }

    protected function isFoundInCompose(): Attribute
    {
        return Attribute::make(
            get: function () {
                if (! $this->application_id) {
                    return true;
                }
                $found_in_compose = false;
                $found_in_args = false;
                $resource = $this->resource();
                $compose = data_get($resource, 'docker_compose_raw');
                if (! $compose) {
                    return true;
                }
                $yaml = Yaml::parse($compose);
                $services = collect(data_get($yaml, 'services'));
                if ($services->isEmpty()) {
                    return false;
                }
                foreach ($services as $service) {
                    $environments = collect(data_get($service, 'environment'));
                    $args = collect(data_get($service, 'build.args'));
                    if ($environments->isEmpty() && $args->isEmpty()) {
                        $found_in_compose = false;
                        break;
                    }

                    $found_in_compose = $environments->contains(function ($item) {
                        if (str($item)->contains('=')) {
                            $item = str($item)->before('=');
                        }

                        return strpos($item, $this->key) !== false;
                    });

                    if ($found_in_compose) {
                        break;
                    }

                    $found_in_args = $args->contains(function ($item) {
                        if (str($item)->contains('=')) {
                            $item = str($item)->before('=');
                        }

                        return strpos($item, $this->key) !== false;
                    });

                    if ($found_in_args) {
                        break;
                    }
                }

                return $found_in_compose || $found_in_args;
            }
        );
    }

    protected function isShared(): Attribute
    {
        return Attribute::make(
            get: function () {
                $type = str($this->value)->after('{{')->before('.')->value;
                if (str($this->value)->startsWith('{{'.$type) && str($this->value)->endsWith('}}')) {
                    return true;
                }

                return false;
            }
        );
    }

    private function get_real_environment_variables(?string $environment_variable = null, $resource = null)
    {
        if ((is_null($environment_variable) && $environment_variable == '') || is_null($resource)) {
            return null;
        }
        $environment_variable = trim($environment_variable);
        $type = str($environment_variable)->after('{{')->before('.')->value;
        if (str($environment_variable)->startsWith('{{'.$type) && str($environment_variable)->endsWith('}}')) {
            $variable = Str::after($environment_variable, "{$type}.");
            $variable = Str::before($variable, '}}');
            $variable = Str::of($variable)->trim()->value;
            if (! collect(SHARED_VARIABLE_TYPES)->contains($type)) {
                return $variable;
            }
            if ($type === 'environment') {
                $id = $resource->environment->id;
            } elseif ($type === 'project') {
                $id = $resource->environment->project->id;
            } else {
                $id = $resource->team()->id;
            }
            $environment_variable_found = SharedEnvironmentVariable::where('type', $type)->where('key', $variable)->where('team_id', $resource->team()->id)->where("{$type}_id", $id)->first();
            if ($environment_variable_found) {
                return $environment_variable_found;
            }
        }

        return $environment_variable;
    }

    private function get_environment_variables(?string $environment_variable = null): ?string
    {
        if (! $environment_variable) {
            return null;
        }

        return trim(decrypt($environment_variable));
    }

    private function set_environment_variables(?string $environment_variable = null): ?string
    {
        if (is_null($environment_variable) && $environment_variable == '') {
            return null;
        }
        $environment_variable = trim($environment_variable);
        $type = str($environment_variable)->after('{{')->before('.')->value;
        if (str($environment_variable)->startsWith('{{'.$type) && str($environment_variable)->endsWith('}}')) {
            return encrypt((string) str($environment_variable)->replace(' ', ''));
        }

        return encrypt($environment_variable);
    }

    protected function key(): Attribute
    {
        return Attribute::make(
            set: fn (string $value) => Str::of($value)->trim(),
        );
    }
}
