doc: dev: Complete Architecture section.

doc/dev/documentation.org

@@ -73,7 +73,7 @@ https://doc.qt.io/qt-5/model-view-programming.html (last access
 [fn:org] The org-mode website: https://orgmode.org/ (last access
 2023-09-15)
 
-* TODO Architecture
+* Architecture
 
 Pamhyr2's architecture is based on Qt Model/View, see Figure
 [[graph-architecture]]. It is made up of several different components: the
@@ -672,7 +672,30 @@ data has changed.
           # Update function code...
 #+end_src
 
-** TODO Solver
+** Solver
+
+The Pamhyr2 architecture allow to define multiple solver. A solver is
+define by a:
+ - type
+ - name
+ - description,
+ - path
+ - command line pattern
+ - (optional) input formater path
+ - (optional) input formater command line
+ - (optional) output formater path
+ - (optional) output formater command line
+
+Let see Figure [[graph-multi-solver]], the application can implement
+different solver type, this solver type implement the code for export
+study to solver input format, and read the solver output to study
+results. There exists a generic solver with a generic input and output
+format, the type could be use to use a solver not implemented in
+Pamhyr2, but this solver must can read/write input and output generic
+format or use external script. There is possible to define different
+solver with the same type, for example two differents version of the
+same solver. Finaly, with input and output formater is possible to
+execute a code on distant computer, for example, over ssh.
 
 #+name: graph-multi-solver
 #+header: :results drawer
@@ -782,6 +805,16 @@ data has changed.
   }
 #+end_src
 
+Let see Figure [[graph-pipeline]] the temporal order of action to run a
+solver and get results:
+ - (1) Write solver input file(s) using the study data
+ - (2) Run the solver
+ - (2.1) The solver read the input file(s)
+ - (2.2) The solver compute results and write it to solver output
+   file(s)
+ - (3) Pamhyr2 create a Reuslts
+ - (3.1) The Pamhyr2 solver class read solver output file(s) and
+   complete Results with readed data
 
 #+name: graph-pipeline
 #+header: :results drawer
@@ -811,8 +844,8 @@ data has changed.
         subgraph cluster1{
             label="File System";
             style=dashed;
-            in[label="Solver input files",shape=note];
-            out[label="Solver output files",shape=note];
+            in[label="Solver input file(s)",shape=note,fillcolor=white];
+            out[label="Solver output file(s)",shape=note,fillcolor=white];
             bin[label="Solver binary",shape=note];
         }
 
@@ -827,6 +860,10 @@ data has changed.
   }
 #+end_src
 
+In case of generic solver (or a solver with input and output formater)
+the temporal order of action is prensented in Figure
+[[graph-pipeline-generic]].
+
 #+name: graph-pipeline-generic
 #+header: :results drawer
 #+header: :exports results
@@ -858,8 +895,8 @@ data has changed.
 
             gin[label="Generic input file", shape=note,fillcolor=white];
             ibin[label="Input formater", shape=note];
-            in[label="Solver input files",shape=note,fillcolor=white];
-            out[label="Solver output files",shape=note,fillcolor=white];
+            in[label="Solver input file(s)",shape=note,fillcolor=white];
+            out[label="Solver output file(s)",shape=note,fillcolor=white];
             gout[label="Generic results file",shape=note,fillcolor=white];
             obin[label="Output formater", shape=note];
             bin[label="Solver binary",shape=note];
@@ -894,8 +931,40 @@ data has changed.
   }
 #+end_src
 
-** TODO Unit tests
-** TODO The debug mode
+To implement a Solver in Pamhyr2, there exists a abstract class
+=Solver.AbstractSolver=. A class who herits this class, must implement
+different methods:
+ - =export=: Export the study to solver input file(s)
+ - =input_param=: Return the solver input parameter(s) as string
+ - =log_file=: Return the solver log file name as string
+ - =results=: Read the solver output file(s) and return a
+   =Model.Results= object.
+
+** Unit tests
+
+The unit tests is actually not implemented in Pamhyr2, it is a *work
+in progress*.
+
+** The debug mode
+
+To activate an deactivate the Pamhyr2 debug mode you can open the
+configuration window and type "Ctrl+G" or run Pamhyr2 with command
+line:
+#+begin_src shell
+./Pamhyr2 debug
+#+end_src
+
+This mode add some log and add two action in main window menu:
+"About/Debug" open a window with Python Repl in current Python
+environement, and "About/Debug SQLite" who open the application
+SQLiteBrowser (if installed) on current Study to explore the study
+data base file.
+
+#+NAME: debug-repl
+#+ATTR_LATEX: :width 16cm
+#+CAPTION: Pamhyr2 debug Python REPL
+[[./images/python-debug-repl.png]]
+
 * TODO Build the project
 
 The project uses gitlab-ci runners to build packages, but it is possible
@@ -942,6 +1011,8 @@ winetricks installed.
 [fn:nsis] The NSIS web site: https://sourceforge.net/projects/nsis/
 
 ** TODO Setup the CI environment
+*** Linux
+*** Windows (Wine)
 * Documentation files
 
 This document and the user documentation are org files. This text file