#! /usr/bin/tclsh

package require "elite" "1.0.1"

if {[llength $argv] < 1} {
  puts stderr "usage: $argv0 \[-OPTION | ATTR | ATTR=VALUE\] ..."
  exit 1
}
jameson cmdr

proc get/string {a} { global cmdr; return $cmdr($a) }
proc dump/string {a} { global cmdr; return $cmdr($a) }
proc set/string {a v} { global cmdr; set cmdr($a) $v }

proc get/int {min max a} {
  global cmdr
  return [format "%d" [expr {$cmdr($a) + 0}]]
}
proc dump/int {min max a} {
  global cmdr
  return [format "%d" [expr {$cmdr($a) + 0}]]
}
proc set/int {min max a v} {
  global cmdr
  if {$v < $min || $v > $max} { error "value out of range" }
  set cmdr($a) $v
}

proc get/tenth {min max a} {
  global cmdr
  return [format "%.1f" [expr {$cmdr($a)/10.0}]]
}
proc dump/tenth {min max a} {
  global cmdr
  return [format "%.1f" [expr {$cmdr($a)/10.0}]]
}
proc set/tenth {min max a v} {
  global cmdr
  if {$v < $min || $v > $max} { error "value out of range" }
  set cmdr($a) [expr {int($v * 10)}]
}

proc get/choice {min max l a} {
  global cmdr
  set x "custom"
  foreach {t v} $l { if {$cmdr($a) >= $v} { set x $t } }
  return [format "%d (%s)" [expr {$cmdr($a) + 0}] $x]
}
proc dump/choice {min max l a} {
  global cmdr
  return [format "%d" [expr {$cmdr($a) + 0}]]
}
proc set/choice {min max l a v} {
  global cmdr
  if {[regexp {^\d+$} $v]} {
    if {$v < $min || $v > $max} { error "value out of range" }
  } else {
    set x $v
    set v -1
    foreach {t vv} $l {
      if {[string equal -nocase $x $t]} { set v $vv; break }
    }
    if {$v == -1} { error "unknown tag `$x'" }
  }
  set cmdr($a) $v
}

proc get/seed {a} { global cmdr; return $cmdr($a) }
proc dump/seed {a} { global cmdr; return $cmdr($a) }
proc set/seed {a v} {
  global cmdr
  set s [parse-galaxy-spec $v]
  if {[string equal $s ""]} { error "bad galaxy spec `$v'" }
  destructure [list . cmdr($a)] $s
}

proc get/world {a} {
  global cmdr gov eco
  set ww [elite-galaxylist $cmdr(gal-seed)]
  set s [nearest-planet $ww \
      [expr {$cmdr(world-x) * 4}] [expr {$cmdr(world-y) * 2}]]
  elite-worldinfo p $s
  return [list $p(name) $p(x) $p(y) $eco($p(economy)) $gov($p(government)) \
      $p(techlevel)]
}
proc dump/world {a} {
  global cmdr
  return [format "%d, %d" \
      [expr {$cmdr(world-x) * 4}] [expr {$cmdr(world-y) * 2}]]
}
proc set/world {a v} {
  global cmdr
  set ww [elite-galaxylist $cmdr(gal-seed)]
  set s [parse-planet-spec $cmdr(gal-seed) $v]
  if {[string equal $s ""]} { error "bad planet spec `$v'" }
  if {![in-galaxy-p $cmdr(gal-seed) $s]} {
    error "planet `[worldname $s]' not in galaxy $cmdr(gal-seed)"
  }
  elite-worldinfo p $s
  set ss [nearest-planet $ww $p(x) $p(y)]
  if {![string equal $s $ss]} {
    set n $p(name)
    elite-worldinfo p $ss
    puts stderr "can't dock at $n: $p(name) is coincident"
  }
  set cmdr(world-x) [expr {$p(x)/4}]
  set cmdr(world-y) [expr {$p(y)/2}]
}

proc get/bool {dfl a} {
  global cmdr
  if {$cmdr($a)} { return "yes" } else { return "no" }
}
proc dump/bool {dfl a} {
  global cmdr
  if {$cmdr($a)} { return "yes" } else { return "no" }
}  
proc set/bool {dfl a v} {
  global cmdr
  switch -- [string tolower $v] {
    "y" - "yes" - "true" - "on" { set v 1 }
    "n" - "no" - "false" - "off" { set v 0 }
  }
  if {$v} { set cmdr($a) $dfl } else { set cmdr($a) 0 }
}

proc set/comment {a v} { }

set attrs {}
set attr(\#) { comment }
foreach {a type} {
  mission		{ int 0 255 }
  score			{ choice 0 65535 {
    "harmless" 0 "mostly-harmless" 8 "poor" 16 "average" 32
    "above-average" 64 "competent" 128 "dangerous" 512 "deadly" 2560
    "elite" 6400
  } }
  credits		{ tenth 0 429496729.5 }
  legal-status		{ choice 0 255
			  { "clean" 0 "offender" 1 "fugitive" 50 } }
  cargo			{ int 4 255 }
  gal-number		{ int 1 8 }
  gal-seed		{ seed }
  world			{ world }
  market-fluc		{ int 0 255 }
  missiles		{ int 0 255 }
  fuel			{ tenth 0 25.5 }
  energy-unit		{ choice 0 255 { "none" 0 "standard" 1 "naval" 2 } }
} {
  set attr($a) $type
  lappend attrs $a
}
foreach l {front rear left right} {
  set attr($l-laser) {
    choice 0 255
    { "none" 0 "pulse" 0x0f "mining" 0x32 "beam" 0x8f "military" 0x97 }
  }
  lappend attrs $l-laser
}
foreach i {
  ecm fuel-scoop energy-bomb escape-pod docking-computer gal-hyperdrive
} {
  set attr($i) { bool 255 }
  lappend attrs $i
}
foreach l {station hold} {
  foreach {t p} $products {
    set attr($l-$t) { int 0 255 }
    lappend attrs $l-$t
  }
}

set acted 0
for {set i 0} {$i < [llength $argv]} {incr i} {
  set a [lindex $argv $i]
  switch -regexp -- $a {
    "^-reset$" { jameson cmdr }
    "^-show$" {
      foreach a $attrs {
	puts [format "%-20s %s" $a [eval \
	    get/[lindex $attr($a) 0] [lrange $attr($a) 1 end] [list $a]]]
      }
      set acted 1
    }
    "^-load$" {
      incr i
      set a [lindex $argv $i]
      if {[catch { elite-unpackcmdr cmdr [read-file $a] } err]} {
	puts stderr "$argv0: couldn't read `$a': $err"
	exit 1
      }
    }
    "^-save$" {
      incr i
      set a [lindex $argv $i]
      if {[catch { write-file $a [elite-packcmdr cmdr] } err]} {
	puts stderr "$argv0: couldn't write `$a': $err"
	exit 1
      }
      set acted 1
    }
    "^-dump$" {
      puts "# {Elite commander dump}"
      puts ""
      foreach a $attrs {
	puts [list $a [eval \
	    dump/[lindex $attr($a) 0] [lrange $attr($a) 1 end] [list $a]]]
      }
      set acted 1
    }
    "^-read$" {
      incr i
      set a [lindex $argv $i]
      if {[catch {
	foreach {a v} [read-file $a auto] {
	  if {![info exists attr($a)]} {
	    error "no such attribute `$a'"
	  }
	  eval set/[lindex $attr($a) 0] [lrange $attr($a) 1 end] [list $a $v]
	}
      } err]} {
	puts stderr "$argv0: error in script: $err"
	exit 1
      }
    }
    "^-" {
      puts stderr "$argv0: unknown option `$a'"
      exit 1
    }
    "^[a-z][a-z-]*=" {
      regexp {^([a-z][a-z-]*)=(.*)$} $a . a v
      if {![info exists attr($a)]} {
	puts stderr "$argv0: no such attribute `$a'"
	exit 1
      }
      if {[catch {
	eval set/[lindex $attr($a) 0] [lrange $attr($a) 1 end] [list $a $v]
      } err]} {
	puts stderr "$argv0: error setting `$a': $err"
	exit 1
      }
    }
    default {
      set n 0
      foreach aa $attrs {
	if {[string match $a $aa]} {
	  incr n
	  puts [format "%-20s %s" $aa [eval \
	      get/[lindex $attr($aa) 0] \
	      [lrange $attr($aa) 1 end] [list $aa]]]
	}
      }
      if {$n} {
	set acted 1
      } else {
	if {[catch { elite-unpackcmdr cmdr [read-file $a] } err]} {
	  puts stderr "$argv0: couldn't read `$a': $err"
	  exit 1
	}
      }
    }
  }
}
if {!$acted} {
  foreach a $attrs {
    puts [format "%-20s %s" $a [eval \
	get/[lindex $attr($a) 0] [lrange $attr($a) 1 end] [list $a]]]
  }
}