# vim: set filetype=expect:
# We're going to use three history files, including the default, to verify
# that the FISH_HISTFILE variable works as expected.
set default_histfile "../test/data/fish/fish_history"
set my_histfile "../test/data/fish/my_history"
set env_histfile "../test/data/fish/env_history"

# =============
# Verify that if we spawn fish with no FISH_HISTFILE env var it uses the
# default file.
# =============
set fish_pid [spawn $fish]
expect_prompt

# Verify that a command is recorded in the default history file.
set cmd1 "echo $fish_pid default histfile"
set hist_line "- cmd: $cmd1"
send "$cmd1\r"
expect_prompt

# TODO: Figure out why this `history --save` is only needed in one of the
# three Travis CI build environments and neither of my OS X or Ubuntu servers.
send "history --save\r"
expect_prompt

send "grep '^$hist_line' $default_histfile\r"
expect_prompt -re "\r\n$hist_line\r\n" {
    puts "cmd1 found in default histfile"
} unmatched {
    puts stderr "cmd1 not found in default histfile"
}

# Switch to a new history file and verify it is written to and the default
# history file is not written to.
set cmd2 "echo $fish_pid my histfile"
set hist_line "- cmd: $cmd2"
send "set FISH_HISTFILE my\r"
expect_prompt
send "$cmd2\r"
expect_prompt

# TODO: Figure out why this `history --save` is only needed in one of the
# three Travis CI build environments and neither of my OS X or Ubuntu servers.
send "history --save\r"
expect_prompt

send "grep '^$hist_line' $my_histfile\r"
expect_prompt -re "\r\n$hist_line\r\n" {
    puts "cmd2 found in my histfile"
} unmatched {
    puts stderr "cmd2 not found in my histfile"
}
# We expect this grep to fail to find the pattern and thus the expect_prompt
# block is inverted.
send "grep '^$hist_line' $default_histfile\r"
expect_prompt -re "\r\n$hist_line\r\n" {
    puts stderr "cmd2 found in default histfile"
} unmatched {
    puts "cmd2 not found in default histfile"
}

# Switch back to the default history file.
set cmd3 "echo $fish_pid default histfile again"
set hist_line "- cmd: $cmd3"
send "set FISH_HISTFILE default\r"
expect_prompt
send "$cmd3\r"
expect_prompt

# TODO: Figure out why this `history --save` is only needed in one of the
# three Travis CI build environments and neither of my OS X or Ubuntu servers.
send "history --save\r"
expect_prompt

send "grep '^$hist_line' $default_histfile\r"
expect_prompt -re "\r\n$hist_line\r\n" {
    puts "cmd3 found in default histfile"
} unmatched {
    puts stderr "cmd3 not found in default histfile"
}
# We expect this grep to fail to find the pattern and thus the expect_prompt
# block is inverted.
send "grep '^$hist_line' $my_histfile\r"
expect_prompt -re "\r\n$hist_line\r\n" {
    puts stderr "cmd3 found in my histfile"
} unmatched {
    puts "cmd3 not found in my histfile"
}

# =============
# Verify that if we spawn fish with a HISTFILE env var it uses that file.
# =============
# Start by shutting down the previous shell.
send "exit\r"
close $spawn_id

# Set the FISH_HISTFILE env var.
set ::env(FISH_HISTFILE) env

# Spawn a new shell.
set prompt_counter 1
set fish_pid [spawn $fish]
expect_prompt

# Verify that the new fish shell is using the FISH_HISTFILE value for history.
set cmd4 "echo $fish_pid env histfile"
set hist_line "- cmd: $cmd4"
send "$cmd4\r"
expect_prompt

# TODO: Figure out why this `history --save` is only needed in one of the
# three Travis CI build environments and neither of my OS X or Ubuntu servers.
send "history --save\r"
expect_prompt

send "grep '^$hist_line' $env_histfile\r"
expect_prompt -re "\r\n$hist_line\r\n" {
    puts "cmd4 found in env histfile"
} unmatched {
    puts stderr "cmd4 not found in env histfile"
}
# We expect this grep to fail to find the pattern and thus the expect_prompt
# block is inverted.
send "grep '^$hist_line' $default_histfile\r"
expect_prompt -re "\r\n$hist_line\r\n" {
    puts stderr "cmd4 found in default histfile"
} unmatched {
    puts "cmd4 not found in default histfile"
}