# Copyright 2020-2022 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Test "tui new-layout".

tuiterm_env

standard_testfile tui-layout.c

if {[build_executable "failed to prepare" ${testfile} ${srcfile}] == -1} {
    return -1
}

# Make sure TUI is supported before continuing.
with_test_prefix "initial check" {
    Term::clean_restart 24 80 $testfile
    if {![Term::enter_tui]} {
	unsupported "TUI not supported"
	return
    }
}

Term::clean_restart 24 80 $testfile

gdb_test "tui new-layout" \
    "No layout name specified"
gdb_test "tui new-layout example" \
    "New layout does not contain any windows"
gdb_test "tui new-layout example zzq" \
    "Unknown window \"zzq\""
gdb_test "tui new-layout example src 1 src 1" \
    "Window \"src\" seen twice in layout"
gdb_test "tui new-layout example src 1" \
    "New layout does not contain the \"cmd\" window"

# Avoid unbalanced curly braces problems with tcl 8.5.
if { [tcl_version_at_least 8 6] } {
    gdb_test "tui new-layout example src 1\}" \
	"Extra '\}' in layout specification"
    gdb_test "tui new-layout example {src 1} 1\}" \
	"Extra '\}' in layout specification"
    gdb_test "tui new-layout example \{src 1" \
	"Missing '\}' in layout specification"
}

# Each entry of this list describes a layout, and some associated
# tests.  The items within each entry are:
# 1. layout name,
# 2. a string used to create the layout,
# 3. a list of boxes to check for once the layout is selected,
# 4. a regexp to match against the whole screen contents, this
#    can be empty to skip this check.
set layouts \
    [list \
	 [list example "asm 1 status 0 cmd 1" \
	      {{0 0 80 15}} "$hex <main>"] \
	 [list example2 "{asm 1 status 0} 1 cmd 1" \
	      {{0 0 80 15}} ""] \
	 [list h "{-horizontal asm 1 src 1} 1 status 0 cmd 1" \
	      {{0 0 40 15} {39 0 41 15}} \
	      "$hex <main>.*21.*return 0"] \
	 [list example3 "{-horizontal src 1 cmd 1} 1 status 0 asm 1" \
	      {{0 0 40 11} {0 12 80 12}} \
	      "21.*return 0.*$hex <main>"] \
	 [list example4 "src 1 status 0 {-horizontal cmd 1 regs 1} 1" \
	      {{0 0 80 11} {40 12 40 12}} ""] \
	 [list example5 "{-horizontal src 1 cmd 1} 1 status 0" \
	      {{0 0 40 23}} ""] \
	 [list cmd_only "cmd 1" {} ""]]

# Helper function to verify a list of boxes.
proc check_boxes {boxes} {
    set boxno 1
    foreach box $boxes {
	eval Term::check_box [list "box $boxno"] $box
	incr boxno
    }
}

# Now create the layouts.
foreach layout $layouts {
    lassign $layout name desc
    gdb_test_no_output "tui new-layout $name $desc"
    gdb_test "help layout $name" \
	"Apply the \"$name\" layout.*tui new-layout $name $desc"
}

if {![Term::enter_tui]} {
    unsupported "TUI not supported"
    return
}

set text [Term::get_all_lines]
gdb_assert {![string match "No Source Available" $text]} \
    "initial source listing"

foreach_with_prefix layout $layouts {
    lassign $layout name desc boxes content_pattern

    # Reset the layout to a known starting configuration.
    Term::command "layout src"
    Term::command "winheight cmd 8"

    # Apply our test layout.
    Term::command "layout $name"
    check_boxes $boxes

    if {$content_pattern != ""} {
	Term::check_contents "contents in layout $name" \
	    "${content_pattern}"
    }

    # Some additional tests for the 'h' layout.
    if {$name == "h"} {
	Term::command "winheight src - 5"
	Term::check_box "left window box after shrink" 0 0 40 10
	Term::check_box "right window box after shrink" 39 0 41 10

	Term::command "winheight src + 5"
	Term::check_box "left window box after grow" 0 0 40 15
	Term::check_box "right window box after grow" 39 0 41 15
    } elseif {$name == "cmd_only"} {
	Term::check_region_contents "bottom of cmd window is blank" \
	    0 14 80 10 "^\\s+$"
	Term::command "info win"
	Term::check_region_contents "info win output" \
	    0 0 80 24 [multi_line "info win\\s+" \
			   "Name\\s+Lines\\s+Columns\\s+Focus\\s+" \
			   "cmd\\s+24\\s+80\\s+\\(has focus\\)\\s+" \
			   "$gdb_prompt\\s+"]
    }
}