// file      : mod/options.cli -*- C++ -*-
// copyright : Copyright (c) 2014-2017 Code Synthesis Ltd
// license   : MIT; see accompanying LICENSE file

include <web/xhtml-fragment.hxx>;

include <libbrep/types.hxx>;

include <mod/options-types.hxx>;

namespace brep
{
  // Web module configuration options.
  //
  namespace options
  {
    // Option groups.
    //
    class module
    {
      string email
      {
        "<email>",
        "Repository email. This email is used for the \cb{From:} header in
         emails send by \cb{brep} (for example, build failure notifications)."
      }

      string host
      {
        "<host>",
        "Repository host. It specifies the scheme and the host address (but
         not the root path; see \cb{root} below) that will be used whenever
         \cb{brep} needs to construct an absolute URL to one of its locations
         (for example, a link to a build log that is being send via email)."
      }

      dir_path root = "/"
      {
        "<path>"
        "Repository root. That is, this is the part of the URL between the
         host name and the start of the repository. For example, root value
         '\cb{/pkg}' means the repository URL is \cb{http://example.org/pkg/}.
         Specify '\cb{/}' to use the web server root
         (\cb{http://example.org/})."
      }

      uint16_t verbosity = 0
      {
        "<level>",
        "Trace verbosity level. Level 0 disables tracing, which is also the
         default."
      }
    };

    class openssl_options
    {
      path openssl = "openssl"
      {
        "<path>",
        "The openssl program to be used for crypto operations. You can also
         specify additional options that should be passed to the openssl
         program with \cb{openssl-option}. If the openssl program is not
         explicitly specified, then \cb{brep} will use \cb{openssl} by
         default."
      }

      strings openssl-option
      {
        "<opt>",
        "Additional option to be passed to the openssl program (see
         \cb{openssl} for details). Repeat this option to specify multiple
         openssl options."
      }

      strings openssl-envvar
      {
        "<name>[=value]",
        "Environment variable to be set (<name>=<value>) or unset (just
         <name>) for the openssl program (see \cb{openssl} for details).
         Repeat this option to specify multiple openssl variables. Note
         that unspecified variables are inherited from the web server
         process.

         You need to at least set the \cb{RANDFILE} environment variable
         to change the default location of the openssl program seed file
         and maybe also the \cb{OPENSSL_CONF} variable if you would like
         to use a custom openssl configuration file."
      }
    };

    class package_db
    {
      string package-db-user
      {
        "<user>",
        "Package database login user name. If not specified, then operating
         system (login) name is used. See also \c{package-db-role}."
      }

      string package-db-role = "brep"
      {
        "<user>",
        "Package database execution user name. If not empty then the login
         user will be switched (with \c{SET ROLE}) to this user prior to
         executing any statements. If not specified, then \cb{brep} is used."
      }

      string package-db-password
      {
        "<pass>",
        "Package database password. If not specified, then login without
         password is expected to work."
      }

      string package-db-name = "brep_package"
      {
        "<name>",
        "Package database name. If not specified, then \cb{brep_package} is
         used by default."
      }

      string package-db-host
      {
        "<host>",
        "Package database host name, address, or socket. If not specified, then
         connect to \cb{localhost} using the operating system-default
         mechanism (Unix-domain socket, etc)."
      }

      uint16_t package-db-port = 0
      {
        "<port>",
        "Package database port number. If not specified, the default port is
         used."
      }

      size_t package-db-max-connections = 5
      {
        "<num>",
        "The maximum number of concurrent package database connections per web
         server process. If 0, then no limitation is applied. The default is
         5."
      }

      size_t package-db-retry = 10
      {
        "<num>",
        "The maximum number of times to retry package database transactions in
         the face of recoverable failures (deadlock, loss of connection, etc).
         The default is 10."
      }
    };

    class build: openssl_options
    {
      path build-config
      {
        "<buildtab>",
        "Build configuration file. If not specified, then the package building
         functionality will be disabled. If specified, then the build database
         must be configured (see \cb{build-db-*}). The \cb{brep} instance
         needs to be restarted after modifying <buildtab> for the changes to
         take effect."
      }

      dir_path build-bot-agent-keys
      {
        "<dir>",
        "Directory containing build bot agent public keys. If specified, then
         \cb{brep} will perform agent authentication and will reject build
         results from unauthenticated ones. If not specified, then build
         results are accepted from all agents (which will be a security
         risk if the \cb{brep} instance is publicly accessible).

         The directory is expected to contain one PEM-encoded public key
         per file with the \cb{.pem} extension. All other files and
         subdirectories are ignored. The \cb{brep} instance needs to be
         restarted after adding new key files for the changes to take effect."
      }

      size_t build-forced-rebuild-timeout = 600
      {
        "<seconds>",
        "Time to wait before considering a package for a forced rebuild. Must
         be specified in seconds. Default is 10 minutes."
      }

      size_t build-normal-rebuild-timeout = 86400
      {
        "<seconds>",
        "Time to wait before considering a package for a normal rebuild. Must
         be specified in seconds. Default is 24 hours."
      }
    };

    class build_db
    {
      string build-db-user
      {
        "<user>",
        "Build database login user name. If not specified, then operating
         system (login) name is used. See also \c{build-db-role}."
      }

      string build-db-role = "brep"
      {
        "<user>",
        "Build database execution user name. If not empty then the login
         user will be switched (with \c{SET ROLE}) to this user  prior to
         executing any statements. If not specified, then \cb{brep} is used."
      }

      string build-db-password
      {
        "<pass>",
        "Build database password. If not specified, then login without
         password is expected to work."
      }

      string build-db-name = "brep_build"
      {
        "<name>",
        "Build database name. If not specified, then \cb{brep_build} is used
         by default."
      }

      string build-db-host
      {
        "<host>",
        "Build database host name, address, or socket. If not specified, then
         connect to \cb{localhost} using the operating system-default
         mechanism (Unix-domain socket, etc)."
      }

      uint16_t build-db-port = 0
      {
        "<port>",
        "Build database port number. If not specified, the default port is
         used."
      }

      size_t build-db-max-connections = 5
      {
        "<num>",
        "The maximum number of concurrent build database connections per web
         server process. If 0, then no limitation is applied. The default is
         5."
      }

      size_t build-db-retry = 10
      {
        "<num>",
        "The maximum number of times to retry build database transactions in
         the face of recoverable failures (deadlock, loss of connection, etc).
         The default is 10."
      }
    };

    class page
    {
      web::xhtml::fragment logo
      {
        "<xhtml>",
        "Web page logo. It is displayed in the page header aligned to the left
         edge. The value is treated as an XHTML5 fragment."
      }

      vector<page_menu> menu;
      {
        "<label=link>",
        "Web page menu. Each entry is displayed in the page header in the
         order specified and aligned to the right edge. A link target that
         starts with '\cb{/}' or contains '\cb{:}' is used as is. Otherwise,
         it is prefixed with the repository web interface root."
      }
    };

    class search
    {
      uint16_t search-results = 10
      {
        "<num>",
        "Number of package search results per page. The default is 10."
      }

      uint16_t search-pages = 5
      {
        "<num>",
        "Number of pages in navigation (pager). The default is 5."
      }
    };

    class package
    {
      uint16_t package-description = 500
      {
        "<len>",
        "Number of package description characters to display in brief pages.
         The default is 500 (~ 80 characters * 6 lines)."
      }

      uint16_t package-changes = 5000;
      {
        "<len>",
        "Number of package changes characters to display in brief pages. The
         default is 5000 (~ 80 chars x 60 lines)."
      }
    };

    // Module options.
    //
    class package_search: search, package_db, page, module
    {
      string search-title = "Packages"
      {
        "<text>",
        "Package search page title. It is placed inside XHTML5 <title>
         element."
      }
    };

    class package_details: package, search, package_db, page, module
    {
    };

    class package_version_details: package, package_db,
                                   build, build_db,
                                   page,
                                   module
    {
    };

    class repository_details: package_db, page, module
    {
    };

    class build_task: build, package_db, build_db, module
    {
      size_t build-task-request-max-size = 102400
      {
        "<bytes>",
        "The maximum size of the build task request manifest accepted. Note
         that the HTTP POST request body is cached to retry database
         transactions in the face of recoverable failures (deadlock, loss of
         connection, etc). The default is 100K."
      }

      size_t build-result-timeout = 10800
      {
        "<seconds>",
        "Time to wait before considering the expected task result lost. Must be
         specified in seconds. The default is 3 hours."
      }
    };

    class build_result: build, package_db, build_db, module
    {
      size_t build-result-request-max-size = 10240000
      {
        "<bytes>",
        "The maximum size of the build result manifest accepted. Note that the
         HTTP POST request body is cached to retry database transactions in the
         face of recoverable failures (deadlock, loss of connection, etc). The
         default is 10M."
      }
    };

    class build_log: build, package_db, build_db, module
    {
    };

    class build_force: build, package_db, build_db, module
    {
    };

    class builds: build, package_db, build_db, page, module
    {
      uint16_t build-configurations = 10
      {
        "<num>",
        "Number of packages build configurations per page. The default is 10."
      }

      uint16_t build-pages = 5
      {
        "<num>",
        "Number of pages in navigation (pager). The default is 5."
      }
    };

    class repository_root: module
    {
    };
  }

  // Web module HTTP request parameters.
  //
  namespace params
  {
    // Use parameters long names in the C++ code, short aliases (if present)
    // in HTTP URL.
    //
    class package_search
    {
      // Display package search result list starting from this page.
      //
      uint16_t page | p;

      // Package search criteria.
      //
      string query | q;
    };

    class package_details
    {
      // Display package version search result list starting from this page.
      //
      uint16_t page | p;

      // Package version search criteria.
      //
      string query | q;

      // Page form.
      //
      page_form form | f = page_form::brief;
    };

    class package_version_details
    {
      // Page form.
      //
      page_form form | f = page_form::brief;
    };

    class repository_details
    {
      // No parameters so far.
      //
    };

    class build_task
    {
      // Package repository canonical name.
      //
      vector<string> repository | r;
    };

    class build_result
    {
      // No parameters so far.
      //
    };

    class build_log
    {
      // No parameters so far.
      //
    };

    // All parameters are non-optional.
    //
    class build_force
    {
      // Package name.
      //
      string package | pn;

      // Package version. May not be url-encoded, in which case the plus
      // character is considered literally (rather than as the encoded space
      // character). In other words, after url-decoding the space character is
      // treated the same way as the plus character.
      //
      // @@ Make it of the version type? Maybe after it get moved to
      //    libbpkg/types.hxx or at least the second use case appear.
      //
      string version | pv;

      // Package build configuration.
      //
      string configuration | cf;

      // Toolchain version. May not be url-encoded (see above).
      //
      string toolchain_version | tc;

      // Package rebuild reason. Must not be empty.
      //
      string reason;
    };

    class builds
    {
      // Display packages build configurations list starting from this page.
      //
      uint16_t page | p;

      // Package builds query filter options.
      //

      // Package name wildcard. An empty value is treated the same way as *.
      //
      string name | pn;

      // Package version. If empty or *, then no version constraint is applied.
      // Otherwise the build package version must match the value exactly.
      //
      string version | pv;

      // Package build toolchain in the <name>-<version> form. If *, then no
      // toolchain constraint is applied. Otherwise the build toolchain name
      // and version must match the value exactly.
      //
      string toolchain | tc = "*";

      // Package build configuration name wildcard. An empty value is treated
      // the same way as *.
      //
      string configuration | cf;

      // Package build machine name wildcard. An empty value is treated the
      // same way as *.
      //
      string machine | mn;

      // Package build target wildcard. An empty value is treated the same way
      // as *.
      //
      string target | tg;

      // Package build result. If *, then no build result constraint is
      // applied. Otherwise the value is supposed to be the one of the
      // following (ordered) statuses: pending, building, success, warning,
      // error, abort, abnormal. The first 3 statuses are checked for equality,
      // the rest - for being greater or equal.
      //
      string result | rs = "*";
    };
  }
}