<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Database\Eloquent\Relations\HasMany;
use Spatie\Activitylog\Models\Activity;
use Illuminate\Support\Str;
use RuntimeException;
use Symfony\Component\Yaml\Yaml;

class Application extends BaseModel
{
    protected $guarded = [];

    protected static function booted()
    {
        static::saving(function ($application) {
            if ($application->fqdn == '') {
                $application->fqdn = null;
            }
            $application->forceFill([
                'fqdn' => $application->fqdn,
                'install_command' => Str::of($application->install_command)->trim(),
                'build_command' => Str::of($application->build_command)->trim(),
                'start_command' => Str::of($application->start_command)->trim(),
                'base_directory' => Str::of($application->base_directory)->trim(),
                'publish_directory' => Str::of($application->publish_directory)->trim(),
            ]);
        });
        static::created(function ($application) {
            ApplicationSetting::create([
                'application_id' => $application->id,
            ]);
        });
        static::deleting(function ($application) {
            $application->settings()->delete();
            $storages = $application->persistentStorages()->get();
            $server = data_get($application, 'destination.server');
            if ($server) {
                foreach ($storages as $storage) {
                    instant_remote_process(["docker volume rm -f $storage->name"], $server, false);
                }
            }
            $application->persistentStorages()->delete();
            $application->environment_variables()->delete();
            $application->environment_variables_preview()->delete();
        });
    }

    public function settings()
    {
        return $this->hasOne(ApplicationSetting::class);
    }

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

    public function type()
    {
        return 'application';
    }

    public function publishDirectory(): Attribute
    {
        return Attribute::make(
            set: fn ($value) => $value ? '/' . ltrim($value, '/') : null,
        );
    }

    public function gitBranchLocation(): Attribute
    {
        return Attribute::make(
            get: function () {
                if (!is_null($this->source?->html_url) && !is_null($this->git_repository) && !is_null($this->git_branch)) {
                    return "{$this->source->html_url}/{$this->git_repository}/tree/{$this->git_branch}";
                }
                return $this->git_repository;
            }

        );
    }

    public function gitWebhook(): Attribute
    {
        return Attribute::make(
            get: function () {
                if (!is_null($this->source?->html_url) && !is_null($this->git_repository) && !is_null($this->git_branch)) {
                    return "{$this->source->html_url}/{$this->git_repository}/settings/hooks";
                }
                return $this->git_repository;
            }
        );
    }

    public function gitCommits(): Attribute
    {
        return Attribute::make(
            get: function () {
                if (!is_null($this->source?->html_url) && !is_null($this->git_repository) && !is_null($this->git_branch)) {
                    return "{$this->source->html_url}/{$this->git_repository}/commits/{$this->git_branch}";
                }
                return $this->git_repository;
            }
        );
    }
    public function dockerfileLocation(): Attribute
    {
        return Attribute::make(
            set: function ($value) {
                if (is_null($value) || $value === '') {
                    return '/Dockerfile';
                } else {
                    if ($value !== '/') {
                        return Str::start(Str::replaceEnd('/', '', $value), '/');
                    }
                    return Str::start($value, '/');
                }
            }
        );
    }
    public function dockerComposeLocation(): Attribute
    {
        return Attribute::make(
            set: function ($value) {
                if (is_null($value) || $value === '') {
                    return '/docker-compose.yml';
                } else {
                    if ($value !== '/') {
                        return Str::start(Str::replaceEnd('/', '', $value), '/');
                    }
                    return Str::start($value, '/');
                }
            }
        );
    }
    public function baseDirectory(): Attribute
    {
        return Attribute::make(
            set: fn ($value) => '/' . ltrim($value, '/'),
        );
    }

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

    // Normal Deployments

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

        );
    }

    public function portsExposesArray(): Attribute
    {
        return Attribute::make(
            get: fn () => is_null($this->ports_exposes)
                ? []
                : explode(',', $this->ports_exposes)
        );
    }
    public function serviceType()
    {
        $found = str(collect(SPECIFIC_SERVICES)->filter(function ($service) {
            return str($this->image)->before(':')->value() === $service;
        })->first());
        if ($found->isNotEmpty()) {
            return $found;
        }
        return null;
    }
    public function environment_variables(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', false)->orderBy('key', 'asc');
    }

    public function runtime_environment_variables(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', false)->where('key', 'not like', 'NIXPACKS_%');
    }

    // Preview Deployments

    public function build_environment_variables(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', false)->where('is_build_time', true)->where('key', 'not like', 'NIXPACKS_%');
    }

    public function nixpacks_environment_variables(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', false)->where('key', 'like', 'NIXPACKS_%');
    }

    public function environment_variables_preview(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', true)->orderBy('key', 'asc');
    }

    public function runtime_environment_variables_preview(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', true)->where('key', 'not like', 'NIXPACKS_%');
    }

    public function build_environment_variables_preview(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', true)->where('is_build_time', true)->where('key', 'not like', 'NIXPACKS_%');
    }

    public function nixpacks_environment_variables_preview(): HasMany
    {
        return $this->hasMany(EnvironmentVariable::class)->where('is_preview', true)->where('key', 'like', 'NIXPACKS_%');
    }

    public function private_key()
    {
        return $this->belongsTo(PrivateKey::class);
    }

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

    public function previews()
    {
        return $this->hasMany(ApplicationPreview::class);
    }

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

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

    public function isDeploymentInprogress()
    {
        $deployments = ApplicationDeploymentQueue::where('application_id', $this->id)->where('status', 'in_progress')->count();
        if ($deployments > 0) {
            return true;
        }
        return false;
    }

    public function deployments(int $skip = 0, int $take = 10)
    {
        $deployments = ApplicationDeploymentQueue::where('application_id', $this->id)->orderBy('created_at', 'desc');
        $count = $deployments->count();
        $deployments = $deployments->skip($skip)->take($take)->get();
        return [
            'count' => $count,
            'deployments' => $deployments
        ];
    }

    public function get_deployment(string $deployment_uuid)
    {
        return Activity::where('subject_id', $this->id)->where('properties->type_uuid', '=', $deployment_uuid)->first();
    }

    public function isDeployable(): bool
    {
        if ($this->settings->is_auto_deploy_enabled) {
            return true;
        }
        return false;
    }

    public function isPRDeployable(): bool
    {
        if ($this->settings->is_preview_deployments_enabled) {
            return true;
        }
        return false;
    }

    public function deploymentType()
    {
        if (data_get($this, 'private_key_id')) {
            return 'deploy_key';
        } else if (data_get($this, 'source')) {
            return 'source';
        } else {
            return 'other';
        }
        throw new \Exception('No deployment type found');
    }
    public function could_set_build_commands(): bool
    {
        if ($this->build_pack === 'nixpacks') {
            return true;
        }
        return false;
    }
    public function git_based(): bool
    {
        if ($this->dockerfile) {
            return false;
        }
        if ($this->build_pack === 'dockerimage') {
            return false;
        }
        return true;
    }
    public function isHealthcheckDisabled(): bool
    {
        if (data_get($this, 'health_check_enabled') === false) {
            return true;
        }
        return false;
    }
    public function isLogDrainEnabled()
    {
        return data_get($this, 'settings.is_log_drain_enabled', false);
    }
    public function isConfigurationChanged($save = false)
    {
        $newConfigHash = $this->fqdn . $this->git_repository . $this->git_branch . $this->git_commit_sha . $this->build_pack . $this->static_image . $this->install_command  . $this->build_command . $this->start_command . $this->port_exposes . $this->port_mappings . $this->base_directory . $this->publish_directory . $this->health_check_path  . $this->health_check_port . $this->health_check_host . $this->health_check_method . $this->health_check_return_code . $this->health_check_scheme . $this->health_check_response_text . $this->health_check_interval . $this->health_check_timeout . $this->health_check_retries . $this->health_check_start_period . $this->health_check_enabled . $this->limits_memory  . $this->limits_swap . $this->limits_swappiness . $this->limits_reservation . $this->limits_cpus . $this->limits_cpuset . $this->limits_cpu_shares . $this->dockerfile . $this->dockerfile_location . $this->custom_labels;
        if ($this->pull_request_id === 0) {
            $newConfigHash .= json_encode($this->environment_variables->all());
        } else {
            $newConfigHash .= json_encode($this->environment_variables_preview->all());
        }
        $newConfigHash = md5($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;
                $this->save();
            }
            return true;
        }
    }
    public function isMultipleServerDeployment()
    {
        if (isDev()) {
            return true;
        }
        if (data_get($this, 'additional_destinations') && data_get($this, 'docker_registry_image_name')) {
            return true;
        }
        return false;
    }
    public function healthCheckUrl()
    {
        if ($this->dockerfile || $this->build_pack === 'dockerfile' || $this->build_pack === 'dockerimage') {
            return null;
        }
        if (!$this->health_check_port) {
            $health_check_port = $this->ports_exposes_array[0];
        } else {
            $health_check_port = $this->health_check_port;
        }
        if ($this->health_check_path) {
            $full_healthcheck_url = "{$this->health_check_scheme}://{$this->health_check_host}:{$health_check_port}{$this->health_check_path}";
        } else {
            $full_healthcheck_url = "{$this->health_check_scheme}://{$this->health_check_host}:{$health_check_port}/";
        }
        return $full_healthcheck_url;
    }
    function customRepository()
    {
        preg_match('/(?<=:)\d+(?=\/)/', $this->git_repository, $matches);
        $port = 22;
        if (count($matches) === 1) {
            $port = $matches[0];
            $gitHost = str($this->git_repository)->before(':');
            $gitRepo = str($this->git_repository)->after('/');
            $repository = "$gitHost:$gitRepo";
        } else {
            $repository = $this->git_repository;
        }
        return [
            'repository' => $repository,
            'port' => $port
        ];
    }
    function generateBaseDir(string $uuid)
    {
        return "/artifacts/{$uuid}";
    }
    function setGitImportSettings(string $deployment_uuid, string $git_clone_command)
    {
        $baseDir = $this->generateBaseDir($deployment_uuid);
        if ($this->git_commit_sha !== 'HEAD') {
            $git_clone_command = "{$git_clone_command} && cd {$baseDir} && git -c advice.detachedHead=false checkout {$this->git_commit_sha} >/dev/null 2>&1";
        }
        if ($this->settings->is_git_submodules_enabled) {
            $git_clone_command = "{$git_clone_command} && cd {$baseDir} && git submodule update --init --recursive";
        }
        if ($this->settings->is_git_lfs_enabled) {
            $git_clone_command = "{$git_clone_command} && cd {$baseDir} && git lfs pull";
        }
        return $git_clone_command;
    }
    function generateGitImportCommands(string $deployment_uuid, int $pull_request_id = 0, ?string $git_type = null, bool $exec_in_docker = true, bool $only_checkout = false, ?string $custom_base_dir = null)
    {
        $branch = $this->git_branch;
        ['repository' => $customRepository, 'port' => $customPort] = $this->customRepository();
        $baseDir = $custom_base_dir ?? $this->generateBaseDir($deployment_uuid);
        $commands = collect([]);
        $git_clone_command = "git clone -b {$this->git_branch}";
        if ($only_checkout) {
            $git_clone_command = "git clone --no-checkout -b {$this->git_branch}";
        }
        if ($pull_request_id !== 0) {
            $pr_branch_name = "pr-{$pull_request_id}-coolify";
        }

        if ($this->deploymentType() === 'source') {
            $source_html_url = data_get($this, 'source.html_url');
            $url = parse_url(filter_var($source_html_url, FILTER_SANITIZE_URL));
            $source_html_url_host = $url['host'];
            $source_html_url_scheme = $url['scheme'];

            if ($this->source->getMorphClass() == 'App\Models\GithubApp') {
                if ($this->source->is_public) {
                    $fullRepoUrl = "{$this->source->html_url}/{$customRepository}";
                    $git_clone_command = "{$git_clone_command} {$this->source->html_url}/{$customRepository} {$baseDir}";
                    if (!$only_checkout) {
                        $git_clone_command = $this->setGitImportSettings($deployment_uuid, $git_clone_command);
                    }
                    if ($exec_in_docker) {
                        $commands->push(executeInDocker($deployment_uuid, $git_clone_command));
                    } else {
                        $commands->push($git_clone_command);
                    }
                } else {
                    $github_access_token = generate_github_installation_token($this->source);
                    if ($exec_in_docker) {
                        $commands->push(executeInDocker($deployment_uuid, "{$git_clone_command} $source_html_url_scheme://x-access-token:$github_access_token@$source_html_url_host/{$customRepository}.git {$baseDir}"));
                        $fullRepoUrl = "$source_html_url_scheme://x-access-token:$github_access_token@$source_html_url_host/{$customRepository}.git";
                    } else {
                        $commands->push("{$git_clone_command} $source_html_url_scheme://x-access-token:$github_access_token@$source_html_url_host/{$customRepository} {$baseDir}");
                        $fullRepoUrl = "$source_html_url_scheme://x-access-token:$github_access_token@$source_html_url_host/{$customRepository}";
                    }
                }
                if ($pull_request_id !== 0) {
                    $branch = "pull/{$pull_request_id}/head:$pr_branch_name";
                    if ($exec_in_docker) {
                        $commands->push(executeInDocker($deployment_uuid, "cd {$baseDir} && git fetch origin {$branch} && git checkout $pr_branch_name"));
                    } else {
                        $commands->push("cd {$baseDir} && git fetch origin {$branch} && git checkout $pr_branch_name");
                    }
                }
                return [
                    'commands' => $commands->implode(' && '),
                    'branch' => $branch,
                    'fullRepoUrl' => $fullRepoUrl
                ];
            }
        }
        if ($this->deploymentType() === 'deploy_key') {
            $fullRepoUrl = $customRepository;
            $private_key = data_get($this, 'private_key.private_key');
            if (is_null($private_key)) {
                throw new RuntimeException('Private key not found. Please add a private key to the application and try again.');
            }
            $private_key = base64_encode($private_key);
            $git_clone_command_base = "GIT_SSH_COMMAND=\"ssh -o ConnectTimeout=30 -p {$customPort} -o Port={$customPort} -o LogLevel=ERROR -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i /root/.ssh/id_rsa\" {$git_clone_command} {$customRepository} {$baseDir}";
            if (!$only_checkout) {
                $git_clone_command = $this->setGitImportSettings($deployment_uuid, $git_clone_command_base);
            }
            if ($exec_in_docker) {
                $commands = collect([
                    executeInDocker($deployment_uuid, "mkdir -p /root/.ssh"),
                    executeInDocker($deployment_uuid, "echo '{$private_key}' | base64 -d > /root/.ssh/id_rsa"),
                    executeInDocker($deployment_uuid, "chmod 600 /root/.ssh/id_rsa"),
                ]);
            } else {
                $commands = collect([
                    "mkdir -p /root/.ssh",
                    "echo '{$private_key}' | base64 -d > /root/.ssh/id_rsa",
                    "chmod 600 /root/.ssh/id_rsa",
                ]);
            }
            if ($pull_request_id !== 0) {
                if ($git_type === 'gitlab') {
                    $branch = "merge-requests/{$pull_request_id}/head:$pr_branch_name";
                    if ($exec_in_docker) {
                        $commands->push(executeInDocker($deployment_uuid, "echo 'Checking out $branch'"));
                    } else {
                        $commands->push("echo 'Checking out $branch'");
                    }
                    $git_clone_command = "{$git_clone_command} && cd {$baseDir} && GIT_SSH_COMMAND=\"ssh -o ConnectTimeout=30 -p {$customPort} -o Port={$customPort} -o LogLevel=ERROR -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i /root/.ssh/id_rsa\" git fetch origin $branch && git checkout $pr_branch_name";
                }
                if ($git_type === 'github') {
                    $branch = "pull/{$pull_request_id}/head:$pr_branch_name";
                    if ($exec_in_docker) {
                        $commands->push(executeInDocker($deployment_uuid, "echo 'Checking out $branch'"));
                    } else {
                        $commands->push("echo 'Checking out $branch'");
                    }
                    $git_clone_command = "{$git_clone_command} && cd {$baseDir} && GIT_SSH_COMMAND=\"ssh -o ConnectTimeout=30 -p {$customPort} -o Port={$customPort} -o LogLevel=ERROR -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i /root/.ssh/id_rsa\" git fetch origin $branch && git checkout $pr_branch_name";
                }
            }

            if ($exec_in_docker) {
                $commands->push(executeInDocker($deployment_uuid, $git_clone_command));
            } else {
                $commands->push($git_clone_command);
            }
            return [
                'commands' => $commands->implode(' && '),
                'branch' => $branch,
                'fullRepoUrl' => $fullRepoUrl
            ];
        }
        if ($this->deploymentType() === 'other') {
            $fullRepoUrl = $customRepository;
            $git_clone_command = "{$git_clone_command} {$customRepository} {$baseDir}";
            $git_clone_command = $this->setGitImportSettings($deployment_uuid, $git_clone_command);
            if ($exec_in_docker) {
                $commands->push(executeInDocker($deployment_uuid, $git_clone_command));
            } else {
                $commands->push($git_clone_command);
            }
            return [
                'commands' => $commands->implode(' && '),
                'branch' => $branch,
                'fullRepoUrl' => $fullRepoUrl
            ];
        }
    }
    public function prepareHelperImage(string $deploymentUuid)
    {
        $basedir = $this->generateBaseDir($deploymentUuid);
        $helperImage = config('coolify.helper_image');
        $server = data_get($this, 'destination.server');
        $network = data_get($this, 'destination.network');

        $serverUserHomeDir = instant_remote_process(["echo \$HOME"], $server);
        $dockerConfigFileExists = instant_remote_process(["test -f {$serverUserHomeDir}/.docker/config.json && echo 'OK' || echo 'NOK'"], $server);

        $commands = collect([]);
        if ($dockerConfigFileExists === 'OK') {
            $commands->push([
                "command" => "docker run -d --network $network -v /:/host --name $deploymentUuid --rm -v {$serverUserHomeDir}/.docker/config.json:/root/.docker/config.json:ro -v /var/run/docker.sock:/var/run/docker.sock $helperImage",
                "hidden" => true,
            ]);
        } else {
            $commands->push([
                "command" => "docker run -d --network {$network} -v /:/host --name {$deploymentUuid} --rm -v /var/run/docker.sock:/var/run/docker.sock {$helperImage}",
                "hidden" => true,
            ]);
        }
        $commands->push([
            "command" => executeInDocker($deploymentUuid, "mkdir -p {$basedir}"),
            "hidden" => true,
        ]);
        return $commands;
    }
    function parseCompose()
    {
        if ($this->docker_compose_raw) {
            return parseDockerComposeFile($this);
        } else {
            return collect([]);
        }
    }
}