141 lines
3.2 KiB
PHP
141 lines
3.2 KiB
PHP
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#!/usr/bin/php
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<?php
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require_once __DIR__.'/../../include/php/const';
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function globalstate_update(){
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/* [1] Fetch global state
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=========================================================*/
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$GLOBAL_STATE = [];
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/* (1) Fetch from file */
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$f_gstate = @file_get_contents(STATE_CONF);
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/* (2) Manage errors */
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if( $f_gstate === false ){
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slog('Cannot access GLOBAL STATE file', 'global-state:update');
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return 127;
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}
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/* (3) Remove surrounding spaces */
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$f_gstate = preg_replace('@^\s+@', '', $f_gstate);
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$f_gstate = preg_replace('@\s+$@', '', $f_gstate);
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/* (4) Extract */
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$GLOBAL_STATE = $f_gstate;
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/* [2] Cache global state to chip states
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=========================================================*/
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$CHIP_STATE = null;
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/* (1) Fetch from file */
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$f_cstates = new SplFileObject(STATES_CONF, 'r');
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/* (2) Section Title */
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if( $f_cstates === false ){
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slog('Cannot access GLOBAL/CHIP STATES file', 'global-state:update');
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return 127;
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}
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/* (3) Parse line by line */
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while( !$f_cstates->eof() ){
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// {1} Try to parse current line //
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$parsed = json_decode($f_cstates->fgets(), true);
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// {2} If cannot parse, go to next //
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if( is_null($parsed) )
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continue;
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// {3} Check if GLOBAL STATE matches CURRENT state //
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$failed = false;
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for( $c = 0 ; $c < strlen($GLOBAL_STATE) || $c < strlen($parsed[0]) ; $c++ ){
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// {3.1} If 'X' -> whatever state //
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if( $parsed[0][$c] == 'X' )
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continue;
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// {3.2} Else, if different -> fail //
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else if( $parsed[0][$c] != $GLOBAL_STATE[$c] ){
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$failed = true;
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break;
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}
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}
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// {4} If not failed -> state to keep //
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if( !$failed ){
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slog("Current state '$GLOBAL_STATE' matches '{$parsed[0]}'", 'global-state:update');
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$CHIP_STATE = $parsed[1];
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break;
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}
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}
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/* (4) If no CHIP_STATE set -> abort */
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if( is_null($CHIP_STATE) ){
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slog("Cannot find a chip_state for the current global state '{$GLOBAL_STATE}'", 'global-state');
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return 127;
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}
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/* [2] Update chips
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=========================================================*/
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/* (1) Get file handler */
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$f_chips = new SplFileObject(CHIPS_CONF, 'r');
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/* (2) Parse line by line */
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while( !$f_chips->eof() ){
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// {1} Try to parse current line //
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$parsed = json_decode($f_chips->fgets(), true);
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// {2} If cannot parse, go to next //
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if( is_null($parsed) )
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continue;
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// {3} Check if position available in GLOBAL_STATE //
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if( isset($CHIP_STATE[$parsed[0]]) ){
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/* (1) If CHIP STATE value is 'x' -> do nothing */
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if( $CHIP_STATE[$parsed[0]] == 'x' )
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continue;
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/* (2) If state does not exist -> go to next chip */
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if( !isset($parsed[2][$CHIP_STATE[$parsed[0]]]) )
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continue;
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/* (3) Use variables to be more human-readable */
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$position = $parsed[0];
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$state = $CHIP_STATE[$parsed[0]];
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/* (3) Set state */
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$updated = syscall(SOURCE_DIR."/lib/global-state/set {$position} {$state}");
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/* (4) If error */
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if( $updated === false )
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slog("Cannot set ${position} chip to state {$state}", 'global-state:update');
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}
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}
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return 0;
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}
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/* [3] Launch main script
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=========================================================*/
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$exec = globalstate_update();
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echo $exec;
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die($exec);
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?>
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