// file      : libbuild2/adhoc-rule-buildscript.hxx -*- C++ -*-
// license   : MIT; see accompanying LICENSE file

#ifndef LIBBUILD2_ADHOC_RULE_BUILDSCRIPT_HXX
#define LIBBUILD2_ADHOC_RULE_BUILDSCRIPT_HXX

#include <libbuild2/types.hxx>
#include <libbuild2/forward.hxx>
#include <libbuild2/utility.hxx>

#include <libbuild2/rule.hxx>

#include <libbuild2/build/script/script.hxx>

namespace build2
{
  // Ad hoc buildscript rule.
  //
  // Note: not exported and should not be used directly (i.e., registered).
  //
  class adhoc_buildscript_rule: public adhoc_rule,
                                public adhoc_rule_with_deadline
  {
  public:
    virtual bool
    reverse_fallback (action, const target_type&) const override;

    virtual bool
    match (action, target&, const string&, match_extra&) const override;

    virtual recipe
    apply (action, target&, match_extra&) const override;

    virtual recipe
    apply (action, target&, match_extra&,
           const optional<timestamp>&) const override;

    target_state
    perform_update_file (action, const target&) const;

    struct match_data;

    target_state
    perform_update_file_dyndep (action, const target&, match_data&) const;

    bool
    execute_update_file (const scope&,
                         action a, const file&,
                         build::script::environment&,
                         build::script::default_runner&,
                         bool deferred_failure = false) const;

    target_state
    default_action (action, const target&, const optional<timestamp>&) const;

    adhoc_buildscript_rule (string n, const location& l, size_t b)
        : adhoc_rule (move (n), l, b) {}

    virtual bool
    recipe_text (const scope&,
                 const target_type&,
                 string&&,
                 attributes&) override;

    virtual void
    dump_attributes (ostream&) const override;

    virtual void
    dump_text (ostream&, string&) const override;

  public:
    using script_type = build::script::script;

    script_type        script;
    string             checksum; // Script text hash.
    const target_type* ttype;    // First target/pattern type.
  };
}

#endif // LIBBUILD2_ADHOC_RULE_BUILDSCRIPT_HXX