# -*- tcl -*-
# Maintenance Instruction: leave the 999999.xxx.x as is and use 'pmix make' or src/make.tcl to update from <pkg>-buildversion.txt
#
# Please consider using a BSD or MIT style license for greatest compatibility with the Tcl ecosystem.
# Code using preferred Tcl licenses can be eligible for inclusion in Tcllib, Tklib and the punk package repository.
# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++
# (C) 2023
#
# @@ Meta Begin
# Application punk::mix::commandset::layout 999999.0a1.0
# Meta platform     tcl
# Meta license      <unspecified>
# @@ Meta End



# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++
##  Requirements
##e.g package require frobz

#sort of a circular dependency when commandset loaded by punk::mix::cli - that's ok, but this could theoretically be loaded by another cli and with another base
package require punk::mix
package require punk::mix::base



# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++
namespace eval punk::mix::commandset::layout {
    namespace export *

    #per layout functions
    proc files {layout} {
        set allfiles [lib::layout_all_files $layout]
        return [join $allfiles \n]
    }
    proc templatefiles {layout} {
        set templatefiles [lib::layout_scan_for_template_files $layout]
        return [join $templatefiles \n]
    }
    proc templatefiles.relative {layout} {
        set template_base_dict [punk::mix::base::lib::get_template_basefolders]

        set bases_containing_layout [list]
        dict for {tbase folderinfo} $template_base_dict {
           if {[file exists $tbase/layouts/$layout]} {
                lappend bases_containing_layout $tbase
           } 
        }
        if {![llength $bases_containing_layout]} {
            puts stderr "Unable to locate folder for layout '$layout'"
            puts stderr "searched [dict size $template_base_dict] template folders"
            return
        }
        set tpldir [lindex $bases_containing_layout end]

        set layout_base $tpldir/layouts
        set layout_dir [file join $layout_base $layout]

        set stripprefix [file normalize $layout_dir]
        set templatefiles [lib::layout_scan_for_template_files $layout]
        set tails [list]
        foreach templatefullpath $templatefiles {
            lappend tails [punk::repo::path_strip_alreadynormalized_prefixdepth $templatefullpath $stripprefix]
        }
        return [join $tails \n]
    }

    #layout collection functions - to be imported with punk::overlay::import_commandset separately
    namespace eval collection {
        namespace export *
        proc _default {{glob {}}} {
            if {![string length $glob]} {
                set glob *
            }
            set layouts [list]
            #set tplfolderdict [punk::cap::templates::folders]
            set tplfolderdict [punk::mix::base::lib::get_template_basefolders]
            dict for {tdir folderinfo} $tplfolderdict {
                set layout_base $tdir/layouts
                #collect all layouts and use lsearch glob rather than the filesystem glob (avoid issues with dotted folder names)
                set all_layouts [lsort [glob -nocomplain -dir $layout_base -type d -tail *]]
                foreach match [lsearch -all -inline $all_layouts $glob] {
                   lappend layouts [list $match $folderinfo] 
                }
            }
            return [join [lsort -index 0 $layouts] \n]
        }

    }
    namespace eval lib {
        proc layout_all_files {layout} {
            set tplbasedict [punk::mix::base::lib::get_template_basefolders]
            set layouts_found [list]
            dict for {tplbase folderinfo} $tplbasedict {
                if {[file isdirectory $tplbase/layouts/$layout]} {
                    lappend layouts_found $tplbase/layouts/$layout
                }
            } 
            if {![llength $layouts_found]} {
                puts stderr "layout '$layout' not found."
                puts stderr "searched [dict size $tplbasedict] template folders"
                dict for {tplbase pkg} $tplbasedict {
                    puts stderr " - $tplbase $pkg"
                }
                return
            }
            set layoutfolder [lindex $layouts_found end]

            if {![file isdirectory $layoutfolder]} {
                puts stderr "layout '$layout' not found in /layouts within one of template_folders. (get_template_folder returned: $tplbasedict)"
            }
            set file_list [list] 
            util::foreach-file $layoutfolder path {
                lappend file_list $path
            }

            return $file_list
        }

        # 
        #todo - allow specifying which package the layout is from:  e.g "punk::mix::templates project" ??
        proc layout_scan_for_template_files {layout {tags {}}} {
            #equivalent for projects? punk::mix::commandset::module::lib::templates_dict  -scriptpath "" 
            set tplbasedict [punk::mix::base::lib::get_template_basefolders]
            set layouts_found [list]
            dict for {tpldir pkg} $tplbasedict {
                if {[file isdirectory $tpldir/layouts/$layout]} {
                    lappend layouts_found $tpldir/layouts/$layout
                }
            } 
            if {![llength $layouts_found]} {
                puts stderr "layout '$layout' not found."
                puts stderr "searched [dict size $tplbasedict] template folders"
                dict for {tpldir pkg} $tplbasedict {
                    puts stderr " - $tpldir $pkg"
                }
                return
            }
            set layoutfolder [lindex $layouts_found end]

            #use last matching layout found.  review silent if multiple?
            if {![llength $tags]} {
                #todo - get standard tags from somewhere
                set tags [list %project%]
            }
            set file_list [list] 
            util::foreach-file $layoutfolder path {
                set fd [open $path r]
                fconfigure $fd -translation binary
                set data [read $fd]
                close $fd
                foreach tag $tags {
                    if {[string match "*$tag*" $data]} {
                        lappend file_list $path
                    }
                }
            }

            return $file_list
        }
    }


}














# ++ +++ +++ +++ +++ +++ +++ +++ +++ +++ +++
##  Ready   
package provide punk::mix::commandset::layout [namespace eval punk::mix::commandset::layout {
    variable version
    set version 999999.0a1.0 
}]
return